Line data Source code
1 : /*
2 : * SPDX-License-Identifier: MPL-2.0
3 : *
4 : * This Source Code Form is subject to the terms of the Mozilla Public
5 : * License, v. 2.0. If a copy of the MPL was not distributed with this
6 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 : *
8 : * Copyright 2024 MonetDB Foundation;
9 : * Copyright August 2008 - 2023 MonetDB B.V.;
10 : * Copyright 1997 - July 2008 CWI.
11 : */
12 :
13 : #include "monetdb_config.h"
14 : #include "rel_select.h"
15 : #include "sql_tokens.h"
16 : #include "sql_privileges.h"
17 : #include "sql_env.h"
18 : #include "sql_decimal.h"
19 : #include "sql_qc.h"
20 : #include "rel_rel.h"
21 : #include "rel_basetable.h"
22 : #include "rel_exp.h"
23 : #include "rel_xml.h"
24 : #include "rel_dump.h"
25 : #include "rel_prop.h"
26 : #include "rel_psm.h"
27 : #include "rel_schema.h"
28 : #include "rel_unnest.h"
29 : #include "rel_sequence.h"
30 : #include "rel_file_loader.h"
31 :
32 : #define VALUE_FUNC(f) (f->func->type == F_FUNC || f->func->type == F_FILT)
33 : #define check_card(card,f) ((card == card_none && !f->res) || (CARD_VALUE(card) && f->res && VALUE_FUNC(f)) || card == card_loader || (card == card_relation && f->func->type == F_UNION))
34 :
35 : /* return all expressions, with table name == tname */
36 : static list *
37 56935 : rel_table_projections( mvc *sql, sql_rel *rel, char *tname, int level )
38 : {
39 57448 : list *exps;
40 :
41 57448 : if (mvc_highwater(sql))
42 0 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
43 :
44 57448 : if (!rel)
45 : return NULL;
46 :
47 57448 : if (!tname)
48 41708 : return _rel_projections(sql, rel, NULL, 1, 0, 1);
49 :
50 15740 : switch(rel->op) {
51 521 : case op_join:
52 : case op_left:
53 : case op_right:
54 : case op_full:
55 521 : exps = rel_table_projections( sql, rel->l, tname, level+1);
56 521 : if (exps)
57 : return exps;
58 13 : return rel_table_projections( sql, rel->r, tname, level+1);
59 500 : case op_semi:
60 : case op_anti:
61 : case op_select:
62 500 : return rel_table_projections( sql, rel->l, tname, level+1);
63 :
64 54 : case op_topn:
65 : case op_sample:
66 : case op_groupby:
67 : case op_union:
68 : case op_except:
69 : case op_inter:
70 : case op_project:
71 54 : if (!is_processed(rel) && level == 0)
72 0 : return rel_table_projections( sql, rel->l, tname, level+1);
73 : /* fall through */
74 : case op_munion:
75 60 : if (!is_processed(rel) && level == 0) {
76 0 : node *n = ((list*)rel->l)->h;
77 0 : if (n)
78 0 : return rel_table_projections(sql, n->data, tname, level+1);
79 : }
80 : /* fall through */
81 : case op_table:
82 : case op_basetable:
83 14719 : if (is_basetable(rel->op) && !rel->exps)
84 14159 : return rel_base_project_all(sql, rel, tname);
85 560 : if (rel->exps) {
86 560 : int rename = 0;
87 560 : node *en;
88 :
89 : /* first check alias */
90 560 : if (!is_base(rel->op) && !level) {
91 54 : list *exps = sa_list(sql->sa);
92 :
93 409 : for (en = rel->exps->h; en && !rename; en = en->next) {
94 355 : sql_exp *e = en->data;;
95 :
96 355 : if ((is_basecol(e) && exp_relname(e) && strcmp(exp_relname(e), tname) == 0) ||
97 138 : (is_basecol(e) && !exp_relname(e) && e->l && strcmp(e->l, tname) == 0)) {
98 217 : if (exp_name(e) && exps_bind_column2(exps, tname, exp_name(e), NULL))
99 : rename = 1;
100 : else
101 217 : append(exps, e);
102 : }
103 : }
104 : }
105 :
106 560 : exps = new_exp_list(sql->sa);
107 4930 : for (en = rel->exps->h; en; en = en->next) {
108 4370 : sql_exp *e = en->data;
109 4370 : if (is_basecol(e) && exp_relname(e) && strcmp(exp_relname(e), tname) == 0) {
110 4230 : if (rename)
111 0 : append(exps, exp_alias_ref(sql, e));
112 : else {
113 4230 : sql_exp *ne = exp_ref(sql, e);
114 4230 : exp_setname(sql, ne, tname, exp_name(e));
115 4230 : append(exps, ne);
116 : }
117 : }
118 4370 : if (is_basecol(e) && !exp_relname(e) && e->l && strcmp(e->l, tname) == 0) {
119 0 : if (rename)
120 0 : append(exps, exp_alias_ref(sql, e));
121 : else {
122 0 : sql_exp *ne = exp_ref(sql, e);
123 0 : exp_setname(sql, ne, tname, exp_name(e));
124 0 : append(exps, ne);
125 : }
126 : }
127 :
128 : }
129 560 : if (exps && list_length(exps))
130 : return exps;
131 : }
132 : /* fall through */
133 : default:
134 : return NULL;
135 : }
136 : }
137 :
138 : static sql_exp *
139 0 : rel_lastexp(mvc *sql, sql_rel *rel )
140 : {
141 0 : sql_exp *e;
142 :
143 0 : if (!is_processed(rel) || is_topn(rel->op) || is_sample(rel->op))
144 0 : rel = rel_parent(rel);
145 0 : assert(list_length(rel->exps));
146 0 : if (rel->op == op_project) {
147 0 : list_hash_clear(rel->exps);
148 0 : return exp_ref(sql, rel->exps->t->data);
149 : }
150 0 : assert(is_project(rel->op));
151 0 : e = rel->exps->t->data;
152 0 : return exp_ref(sql, e);
153 : }
154 :
155 : static sql_rel *
156 36512 : rel_orderby(mvc *sql, sql_rel *l)
157 : {
158 36512 : sql_rel *rel = rel_create(sql->sa);
159 36512 : if (!rel)
160 : return NULL;
161 :
162 36512 : assert(l->op == op_project && !l->r);
163 36512 : rel->l = l;
164 36512 : rel->r = NULL;
165 36512 : rel->op = op_project;
166 36512 : rel->exps = rel_projections(sql, l, NULL, 1, 0);
167 36512 : rel->card = l->card;
168 36512 : rel->nrcols = l->nrcols;
169 36512 : return rel;
170 : }
171 :
172 : /* forward refs */
173 : static sql_rel * rel_setquery(sql_query *query, symbol *sq);
174 : static sql_rel * rel_joinquery(sql_query *query, symbol *sq, list *refs);
175 :
176 : static sql_rel *
177 202429 : rel_table_optname(mvc *sql, sql_rel *sq, symbol *optname, list *refs)
178 : {
179 202429 : sql_rel *osq = sq;
180 202429 : node *ne;
181 :
182 202429 : if (optname && optname->token == SQL_NAME) {
183 17970 : dlist *columnrefs = NULL;
184 17970 : char *tname = optname->data.lval->h->data.sval;
185 17970 : list *l = sa_list(sql->sa);
186 :
187 17970 : columnrefs = optname->data.lval->h->next->data.lval;
188 17970 : if (is_topn(sq->op) || is_sample(sq->op) || ((is_simple_project(sq->op) || is_groupby(sq->op)) && sq->r) || is_base(sq->op)) {
189 110 : sq = rel_project(sql->sa, sq, rel_projections(sql, sq, NULL, 1, 0));
190 110 : osq = sq;
191 : }
192 17970 : if (columnrefs && dlist_length(columnrefs) != list_length(sq->exps))
193 6 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: The number of aliases don't match the number of columns (%d != %d)", dlist_length(columnrefs), sq->nrcols);
194 5009 : if (columnrefs && sq->exps) {
195 5009 : dnode *d = columnrefs->h;
196 :
197 5009 : ne = sq->exps->h;
198 5009 : list_hash_clear(sq->exps);
199 20676 : for (; d && ne; d = d->next, ne = ne->next) {
200 10659 : sql_exp *e = ne->data;
201 :
202 10659 : if (exps_bind_column2(l, tname, d->data.sval, NULL))
203 1 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "SELECT: Duplicate column name '%s.%s'", tname, d->data.sval);
204 10658 : exp_setname(sql, e, tname, d->data.sval );
205 10658 : if (!is_intern(e))
206 10658 : set_basecol(e);
207 10658 : append(l, e);
208 : }
209 : }
210 17963 : if (!columnrefs && sq->exps) {
211 12955 : ne = sq->exps->h;
212 12955 : list_hash_clear(sq->exps);
213 126652 : for (; ne; ne = ne->next) {
214 100742 : sql_exp *e = ne->data;
215 100742 : char *name = NULL;
216 :
217 100742 : if (!is_intern(e)) {
218 100742 : if (!exp_name(e))
219 108 : name = make_label(sql->sa, ++sql->label);
220 100742 : noninternexp_setname(sql, e, tname, name);
221 100742 : set_basecol(e);
222 : }
223 : }
224 : }
225 17963 : if (refs) { /* if this relation is under a FROM clause, check for duplicate names */
226 17913 : if (list_find(refs, tname, (fcmp) &strcmp))
227 6 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: relation name \"%s\" specified more than once", tname);
228 17907 : assert(tname);
229 17907 : list_append(refs, tname);
230 : }
231 : } else {
232 184459 : if (!is_project(sq->op) || is_topn(sq->op) || is_sample(sq->op) || ((is_simple_project(sq->op) || is_groupby(sq->op)) && sq->r)) {
233 58555 : sq = rel_project(sql->sa, sq, rel_projections(sql, sq, NULL, 1, 1));
234 58555 : osq = sq;
235 : }
236 2319772 : for (ne = osq->exps->h; ne; ne = ne->next) {
237 2135313 : sql_exp *e = ne->data;
238 :
239 2135313 : if (!is_intern(e))
240 2008821 : set_basecol(e);
241 : }
242 : }
243 : return osq;
244 : }
245 :
246 : static sql_rel *
247 97527 : rel_subquery_optname(sql_query *query, symbol *ast, list *refs)
248 : {
249 97527 : mvc *sql = query->sql;
250 97527 : SelectNode *sn = (SelectNode *) ast;
251 97527 : exp_kind ek = {type_value, card_relation, TRUE};
252 97527 : sql_rel *sq = rel_subquery(query, ast, ek);
253 :
254 97527 : assert(ast->token == SQL_SELECT);
255 97527 : if (!sq)
256 : return NULL;
257 :
258 97511 : return rel_table_optname(sql, sq, sn->name, refs);
259 : }
260 :
261 : sql_rel *
262 6932 : rel_with_query(sql_query *query, symbol *q )
263 : {
264 6932 : mvc *sql = query->sql;
265 6932 : dnode *d = q->data.lval->h;
266 6932 : symbol *next = d->next->data.sym;
267 6932 : sql_rel *rel;
268 :
269 6932 : if (!stack_push_frame(sql, NULL))
270 0 : return sql_error(sql, 02, SQLSTATE(HY013) MAL_MALLOC_FAIL);
271 : /* first handle all with's (ie inlined views) */
272 19665 : for (d = d->data.lval->h; d; d = d->next) {
273 12739 : symbol *sym = d->data.sym;
274 12739 : dnode *dn = sym->data.lval->h;
275 12739 : char *rname = qname_schema_object(dn->data.lval);
276 12739 : sql_rel *nrel;
277 :
278 12739 : if (frame_find_rel_view(sql, rname)) {
279 1 : stack_pop_frame(sql);
280 1 : return sql_error(sql, 01, SQLSTATE(42000) "View '%s' already declared", rname);
281 : }
282 12738 : nrel = rel_semantic(query, sym);
283 12738 : if (!nrel) {
284 5 : stack_pop_frame(sql);
285 5 : return NULL;
286 : }
287 12733 : if (!stack_push_rel_view(sql, rname, nrel)) {
288 0 : stack_pop_frame(sql);
289 0 : return sql_error(sql, 02, SQLSTATE(HY013) MAL_MALLOC_FAIL);
290 : }
291 12733 : if (!is_project(nrel->op)) {
292 0 : if (is_topn(nrel->op) || is_sample(nrel->op)) {
293 0 : nrel = rel_project(sql->sa, nrel, rel_projections(sql, nrel, NULL, 1, 1));
294 : } else {
295 0 : stack_pop_frame(sql);
296 0 : return NULL;
297 : }
298 : }
299 12733 : assert(is_project(nrel->op));
300 12733 : if (is_project(nrel->op) && nrel->exps) {
301 12733 : node *ne = nrel->exps->h;
302 :
303 56473 : for (; ne; ne = ne->next) {
304 43740 : sql_exp *e = ne->data;
305 43740 : char *name = NULL;
306 :
307 43740 : if (!is_intern(e)) {
308 43740 : if (!exp_name(e))
309 13 : name = make_label(sql->sa, ++sql->label);
310 43740 : noninternexp_setname(sql, e, rname, name);
311 43740 : set_basecol(e);
312 : }
313 : }
314 12733 : list_hash_clear(nrel->exps);
315 : }
316 : }
317 6926 : rel = rel_semantic(query, next);
318 6926 : stack_pop_frame(sql);
319 6926 : return rel;
320 : }
321 :
322 : static sql_rel *
323 59614 : query_exp_optname(sql_query *query, symbol *q, list *refs)
324 : {
325 59614 : mvc *sql = query->sql;
326 59614 : switch (q->token) {
327 943 : case SQL_WITH:
328 : {
329 943 : sql_rel *tq = rel_with_query(query, q);
330 :
331 943 : if (!tq)
332 : return NULL;
333 943 : if (q->data.lval->t->type == type_symbol)
334 943 : return rel_table_optname(sql, tq, q->data.lval->t->data.sym, refs);
335 : return tq;
336 : }
337 58671 : case SQL_JOIN:
338 : {
339 58671 : sql_rel *tq = rel_joinquery(query, q, refs);
340 :
341 58671 : if (!tq)
342 : return NULL;
343 58630 : return rel_table_optname(sql, tq, q->data.lval->t->data.sym, NULL);
344 : }
345 0 : default:
346 0 : (void) sql_error(sql, 02, SQLSTATE(42000) "case %d %s", (int) q->token, token2string(q->token));
347 : }
348 0 : return NULL;
349 : }
350 :
351 : static sql_subfunc *
352 113342 : bind_func_(mvc *sql, char *sname, char *fname, list *ops, sql_ftype type, bool private, bool *found, bool exact)
353 : {
354 113342 : sql_subfunc *sf = NULL;
355 :
356 113567 : if (sql->forward && strcmp(fname, sql->forward->base.name) == 0 &&
357 225 : list_cmp(sql->forward->ops, ops, (fcmp)&arg_subtype_cmp) == 0 &&
358 0 : execute_priv(sql, sql->forward) && type == sql->forward->type)
359 0 : return sql_dup_subfunc(sql->sa, sql->forward, NULL, NULL);
360 113342 : sf = sql_bind_func_(sql, sname, fname, ops, type, private, exact);
361 113342 : if (found)
362 112812 : *found |= sf != NULL;
363 113342 : if (sf && execute_priv(sql, sf->func))
364 : return sf;
365 : return NULL;
366 : }
367 :
368 : static sql_subfunc *
369 617069 : bind_func(mvc *sql, char *sname, char *fname, sql_subtype *t1, sql_subtype *t2, int nr, sql_ftype type, bool private, bool *found, bool exact)
370 : {
371 617069 : list *tl = sa_list(sql->sa);
372 617069 : assert(nr >= 1 && nr <= 2);
373 617069 : append(tl, t1);
374 617069 : if (nr == 2)
375 522588 : append(tl, t2);
376 617069 : sql_subfunc *sf = NULL;
377 :
378 617069 : if (sql->forward) {
379 131598 : if (execute_priv(sql, sql->forward) &&
380 131598 : strcmp(fname, sql->forward->base.name) == 0 &&
381 230 : ((!t1 && list_length(sql->forward->ops) == 0) ||
382 232 : (!t2 && list_length(sql->forward->ops) == 1 && arg_subtype_cmp(sql->forward->ops->h->data, t1) == 0) ||
383 228 : (list_length(sql->forward->ops) == 2 &&
384 0 : arg_subtype_cmp(sql->forward->ops->h->data, t1) == 0 &&
385 2 : arg_subtype_cmp(sql->forward->ops->h->next->data, t2) == 0)) && type == sql->forward->type) {
386 2 : return sql_dup_subfunc(sql->sa, sql->forward, NULL, NULL);
387 : }
388 : }
389 617067 : sf = sql_bind_func_(sql, sname, fname, tl, type, private, exact);
390 617067 : if (found)
391 617067 : *found |= sf != NULL;
392 617067 : if (sf && execute_priv(sql, sf->func))
393 : return sf;
394 : return NULL;
395 : }
396 :
397 : static sql_subfunc *
398 636535 : find_func(mvc *sql, char *sname, char *fname, int len, sql_ftype type, bool private, sql_subfunc *prev, bool *found)
399 : {
400 636535 : sql_subfunc *sf = NULL;
401 :
402 636535 : if (sql->forward && strcmp(fname, sql->forward->base.name) == 0 && list_length(sql->forward->ops) == len && execute_priv(sql, sql->forward) && type == sql->forward->type)
403 0 : return sql_dup_subfunc(sql->sa, sql->forward, NULL, NULL);
404 636535 : sf = sql_find_func(sql, sname, fname, len, type, private, prev);
405 636535 : if (found)
406 0 : *found |= sf != NULL;
407 636535 : if (sf && execute_priv(sql, sf->func))
408 : return sf;
409 : return NULL;
410 : }
411 :
412 : static sql_exp *
413 694446 : exp_fix_scale(mvc *sql, sql_subtype *ct, sql_exp *e)
414 : {
415 694446 : sql_subtype *et = exp_subtype(e);
416 :
417 694446 : if (ct->type->scale == SCALE_FIX && et->type->scale == SCALE_FIX) {
418 82813 : int scale_diff = ((int) ct->scale - (int) et->scale);
419 :
420 82813 : if (scale_diff) {
421 132 : if (scale_diff < 0)
422 : return e;
423 102 : sql_subtype st;
424 102 : int scale = ct->scale;
425 102 : int digits = ((et->type->eclass == EC_NUM)?bits2digits(et->digits):et->digits)-et->scale+scale;
426 102 : (void)sql_find_subtype(&st, ct->type->base.name, digits, scale);
427 102 : return exp_convert(sql, e, et, &st);
428 : }
429 : }
430 : return e;
431 : }
432 :
433 : static lng
434 9649 : rel_get_count(sql_rel *rel)
435 : {
436 31093 : if (!rel)
437 : return 0;
438 31089 : prop *p = NULL;
439 31089 : if (rel->p && (p = find_prop(rel->p, PROP_COUNT)) != NULL)
440 3041 : return p->value.lval;
441 28048 : else if(is_munion(rel->op)) {
442 168 : lng cnt = 0;
443 168 : list *l = rel->l;
444 504 : for (node *n = l->h; n; n = n->next) {
445 336 : lng lcnt = rel_get_count(n->data);
446 336 : if (lcnt == BUN_MAX)
447 : return BUN_MAX;
448 336 : cnt += lcnt;
449 : }
450 168 : return cnt;
451 27880 : } else if(rel->l) {
452 25209 : if (is_select(rel->op) || is_project(rel->op))
453 : return rel_get_count(rel->l);
454 : }
455 : return 0;
456 : }
457 :
458 : #define is_sum_aggr(f) (f->type == F_AGGR && strcmp(f->base.name, "sum") == 0)
459 :
460 : list *
461 737859 : check_arguments_and_find_largest_any_type(mvc *sql, sql_rel *rel, list *exps, sql_subfunc *sf, int maybe_zero_or_one, bool internal)
462 : {
463 737859 : list *nexps = new_exp_list(sql->sa);
464 737859 : sql_subtype *atp = NULL, super, *res = !list_empty(sf->res) ? sf->res->h->data: NULL;
465 737859 : unsigned int digits = 0, scale = 0;
466 :
467 : /* find largest any type argument */
468 2178418 : for (node *n = exps->h, *m = sf->func->ops->h; n && m; n = n->next, m = m->next) {
469 1440559 : sql_arg *a = m->data;
470 1440559 : sql_exp *e = n->data;
471 1440559 : sql_subtype *t = exp_subtype(e);
472 :
473 1440559 : if (a->type.type->eclass == EC_ANY) {
474 265620 : if (t && atp) {
475 114498 : supertype(&super, t, atp);
476 114498 : atp = &super;
477 151122 : } else if (t) {
478 : atp = t;
479 : }
480 : }
481 1440556 : if (t && sf->func->fix_scale == SCALE_FIX && t->type->eclass == EC_DEC) {
482 1263 : if (digits < t->digits)
483 : digits = t->digits;
484 1263 : if (scale < t->scale)
485 : scale = t->scale;
486 : }
487 : }
488 737859 : if (!atp && !list_empty(exps))
489 586738 : atp = exp_subtype(exps->h->data);
490 :
491 737859 : if ((atp && atp->type->localtype == TYPE_void) || !atp) /* NULL */
492 9418 : atp = sql_bind_localtype("str");
493 :
494 737859 : node *n, *m;
495 2178418 : for (n = exps->h, m = sf->func->ops->h; n && m; n = n->next, m = m->next) {
496 1440559 : sql_arg *a = m->data;
497 1440559 : sql_exp *e = n->data;
498 1440559 : sql_subtype *ntp = &a->type, *t = exp_subtype(e);
499 :
500 1440559 : if (!t) {
501 38 : if (a->type.type->eclass == EC_ANY && atp)
502 3 : ntp = sql_create_subtype(sql->sa, atp->type, atp->digits, atp->scale);
503 61 : rel_set_type_param(sql, ntp, rel, e, sf->func->fix_scale != INOUT && !UDF_LANG(sf->func->lang));
504 1440521 : } else if (a->type.type->eclass == EC_ANY && atp) {
505 265617 : ntp = sql_create_subtype(sql->sa, atp->type, atp->digits, atp->scale);
506 1174904 : } else if (t && ntp->digits == 0 && EC_VARCHAR(a->type.type->eclass)) {
507 510822 : ntp = sql_create_subtype(sql->sa, a->type.type, type_digits_to_char_digits(t), 0);
508 664082 : } else if (t && ntp->digits > 0 && a->type.type->eclass == EC_NUM && t->type->eclass == EC_NUM) {
509 359176 : ntp = sql_create_subtype(sql->sa, a->type.type, t->digits, 0);
510 304906 : } else if (t && ntp->scale == 0 && ntp->type->eclass == EC_DEC && EC_VARCHAR(t->type->eclass)) {
511 0 : sql_subtype *res = SA_NEW(sql->sa, sql_subtype);
512 0 : int digits = t->digits?t->digits+3:ntp->digits;
513 0 : (void)sql_find_subtype(res, a->type.type->base.name, digits, 3);
514 0 : ntp = res;
515 304906 : } else if (t && ntp->scale == 0 && ntp->type->eclass == EC_DEC) {
516 4869 : ntp = sql_create_subtype(sql->sa, a->type.type, t->type->eclass == EC_NUM?bits2digits(t->digits):t->digits, t->scale);
517 300037 : } else if (t->type == ntp->type) {
518 297939 : ntp = t;
519 : }
520 1440559 : if (!(e = exp_check_type(sql, ntp, rel, e, type_equal)))
521 : return NULL;
522 1440559 : if (sf->func->fix_scale == SCALE_FIX) {
523 523310 : ntp = sql_create_subtype(sql->sa, a->type.type->localtype?a->type.type:t?t->type:atp->type, digits, scale);
524 523310 : e = exp_fix_scale(sql, ntp, e);
525 917249 : } else if (sf->func->fix_scale == SCALE_EQ) {
526 171136 : e = exp_fix_scale(sql, &a->type, e);
527 : }
528 1440559 : if (maybe_zero_or_one && e->card > CARD_ATOM) {
529 22 : sql_subfunc *zero_or_one = sql_bind_func(sql, "sys", "zero_or_one", exp_subtype(e), NULL, F_AGGR, true, false);
530 22 : e = exp_aggr1(sql->sa, e, zero_or_one, 0, 0, CARD_ATOM, has_nil(e));
531 : }
532 1440559 : append(nexps, e);
533 : }
534 : /* handle any extra arguments for rel_dump/analytic funcs */
535 738078 : for ( ; n; n = n->next)
536 219 : append(nexps, n->data);
537 737859 : if (sf->func->fix_scale == SCALE_FIX || IS_ANALYTIC(sf->func)) {
538 270467 : exps_scale_fix(sf, nexps, atp);
539 467392 : } else if (sf->func->fix_scale == MAX_BITS) {
540 111642 : exps_max_bits(sf, nexps);
541 355750 : } else if (sf->func->fix_scale == SCALE_MUL) {
542 25185 : exps_sum_scales(sf, nexps);
543 330565 : } else if (!internal && sf->func->fix_scale == SCALE_DIV) {
544 2604 : if (!exps_scale_algebra(sql, sf, rel, nexps))
545 : return NULL;
546 327961 : } else if (sf->func->fix_scale == DIGITS_ADD) {
547 181313 : exps_digits_add(sf, nexps);
548 146648 : } else if (sf->func->fix_scale == INOUT) {
549 19010 : exps_inout(sf, nexps);
550 127638 : } else if (is_sum_aggr(sf->func))
551 9313 : exps_largest_int(sf, nexps, rel_get_count(rel));
552 :
553 : /* dirty hack */
554 737857 : if (sf->func->type != F_PROC && sf->func->type != F_UNION && sf->func->type != F_LOADER && res) {
555 733220 : if (res->type->eclass == EC_ANY && atp)
556 73 : sf->res->h->data = sql_create_subtype(sql->sa, atp->type, atp->digits, atp->scale);
557 : }
558 : return nexps;
559 : }
560 :
561 : static char *
562 32 : nary_function_arg_types_2str(mvc *sql, list* types, int N)
563 : {
564 32 : char *arg_list = NULL;
565 32 : int i = 0;
566 :
567 116 : for (node *n = types->h; n && i < N; n = n->next) {
568 84 : sql_subtype *t = (sql_subtype *) n->data;
569 84 : char *tpe = t ? sql_subtype_string(sql->ta, t) : "?";
570 :
571 84 : if (arg_list) {
572 52 : arg_list = sa_message(sql->ta, "%s, %s", arg_list, tpe);
573 : } else {
574 : arg_list = tpe;
575 : }
576 84 : i++;
577 : }
578 32 : return arg_list;
579 : }
580 :
581 : static char *
582 33 : file_loader_add_table_column_types(mvc *sql, sql_subfunc *f, list *exps, list *res_exps, char *tname)
583 : {
584 33 : sql_exp *file = exps->h->data;
585 33 : if (!exp_is_atom(file))
586 : return "Filename missing";
587 :
588 33 : atom *a = file->l;
589 33 : if (a->data.vtype != TYPE_str || !a->data.val.sval)
590 : return "Filename missing";
591 :
592 33 : char *filename = a->data.val.sval;
593 33 : if (strcmp(filename, "") == 0)
594 : return "Filename missing";
595 :
596 31 : char *ext = strrchr(filename, '.'), *ep = ext;
597 :
598 31 : if (ext) {
599 28 : ext = ext + 1;
600 28 : ext = mkLower(sa_strdup(sql->sa, ext));
601 : }
602 28 : if (!ext)
603 3 : return "Filename extension missing";
604 :
605 28 : file_loader_t *fl = fl_find(ext);
606 28 : if (!fl) {
607 : /* maybe compressed */
608 10 : char *p = ep - 1;
609 66 : while (p > filename && *p != '.')
610 56 : p--;
611 10 : if (p != filename) {
612 8 : ext = p + 1;
613 8 : ext = sa_strdup(sql->sa, ext);
614 8 : char *d = strchr(ext, '.');
615 8 : assert(d);
616 8 : *d = 0;
617 8 : fl = fl_find(ext);
618 : }
619 10 : if (!fl) /* fallback */
620 2 : fl = fl_find("csv");
621 2 : if (!fl) /* not expected */
622 0 : return sa_message(sql->ta, "Filename extension '%s' missing", ext?ext:"");
623 : }
624 28 : str err = fl->add_types(sql, f, filename, res_exps, tname);
625 28 : if (err)
626 : return err;
627 14 : sql_subtype *st = sql_bind_localtype("str");
628 14 : sql_exp *ext_exp = exp_atom(sql->sa, atom_string(sql->sa, st, ext));
629 14 : if (!ext_exp)
630 : return MAL_MALLOC_FAIL;
631 14 : append(exps, ext_exp);
632 14 : return NULL;
633 : }
634 :
635 : static sql_rel *
636 33 : rel_file_loader(mvc *sql, list *exps, list *tl, char *tname)
637 : {
638 33 : sql_subfunc *f = NULL;
639 33 : bool found = false;
640 :
641 33 : if ((f = bind_func_(sql, NULL, "file_loader", tl, F_UNION, true, &found, false))) {
642 33 : list *nexps = exps;
643 33 : if (list_empty(tl) || f->func->vararg || (nexps = check_arguments_and_find_largest_any_type(sql, NULL, exps, f, 1, false))) {
644 33 : list *res_exps = sa_list(sql->sa);
645 33 : if (list_length(exps) == 1 && f && f->func->varres && strlen(f->func->mod) == 0 && strlen(f->func->imp) == 0) {
646 33 : char *err = file_loader_add_table_column_types(sql, f, nexps, res_exps, tname);
647 33 : if (err)
648 19 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: file_loader function failed '%s'", err);
649 : }
650 14 : sql_exp *e = exp_op(sql->sa, nexps, f);
651 14 : sql_rel *rel = rel_table_func(sql->sa, NULL, e, res_exps, TABLE_PROD_FUNC);
652 14 : if (rel)
653 14 : rel = rel_project(sql->sa, rel, exps_alias(sql, res_exps));
654 14 : return rel;
655 : }
656 : }
657 : return NULL;
658 : }
659 :
660 : sql_exp *
661 10854 : find_table_function(mvc *sql, char *sname, char *fname, list *exps, list *tl, sql_ftype type)
662 : {
663 10854 : bool found = false;
664 10854 : sql_subfunc *f = NULL;
665 :
666 10854 : assert(type == F_UNION || type == F_LOADER);
667 10854 : if ((f = bind_func_(sql, sname, fname, tl, type, false, &found, false))) {
668 10834 : list *nexps = exps;
669 10834 : if (list_empty(tl) || f->func->vararg || (nexps = check_arguments_and_find_largest_any_type(sql, NULL, exps, f, 1, false)))
670 10834 : return exp_op(sql->sa, nexps, f);
671 0 : found = false;
672 : }
673 20 : char *arg_list = list_length(tl) ? nary_function_arg_types_2str(sql, tl, list_length(tl)) : NULL;
674 55 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s %s function %s%s%s'%s'(%s)",
675 20 : found ? "insufficient privileges for" : "no such", type == F_UNION ? "table returning" : "loader", sname ? "'":"", sname ? sname : "",
676 : sname ? "'.":"", fname, arg_list ? arg_list : "");
677 : }
678 :
679 : static sql_rel *
680 10868 : rel_named_table_function(sql_query *query, sql_rel *rel, symbol *ast, int lateral, list *refs)
681 : {
682 10868 : mvc *sql = query->sql;
683 10868 : list *exps = NULL, *tl;
684 10868 : node *m;
685 10868 : exp_kind ek = {type_value, card_relation, TRUE};
686 10868 : sql_rel *sq = NULL, *outer = NULL;
687 10868 : sql_exp *e = NULL;
688 10868 : sql_subfunc *sf = NULL;
689 10868 : symbol *sym = ast->data.lval->h->data.sym, *subquery = NULL;
690 10868 : dnode *l = sym->data.lval->h, *n;
691 10868 : char *tname = NULL;
692 10868 : char *fname = qname_schema_object(l->data.lval);
693 10868 : char *sname = qname_schema(l->data.lval);
694 :
695 10868 : tl = sa_list(sql->sa);
696 10868 : exps = sa_list(sql->sa);
697 10868 : if (l->next)
698 10868 : l = l->next; /* skip distinct */
699 10868 : if (l->next) { /* table call with subquery */
700 1029 : int is_value = 1;
701 1029 : if (l->next->type == type_symbol || l->next->type == type_list) {
702 1029 : exp_kind iek = {type_value, card_set, TRUE};
703 1029 : int count = 0;
704 :
705 1029 : if (l->next->type == type_symbol)
706 : n = l->next;
707 : else
708 673 : n = l->next->data.lval->h;
709 :
710 3654 : for (dnode *m = n; m; m = m->next) {
711 2625 : if (m->type == type_symbol && m->data.sym->token == SQL_SELECT)
712 2625 : subquery = m->data.sym;
713 2625 : count++;
714 : }
715 1029 : if (subquery && count > 1)
716 17 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: The input for the table returning function %s%s%s'%s' must be either a single sub query, or a list of values",
717 : sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname);
718 :
719 1024 : if (subquery) {
720 40 : if (!(sq = rel_subquery(query, subquery, ek)))
721 : return NULL;
722 : is_value = 0;
723 : } else {
724 3548 : for ( ; n; n = n->next) {
725 2570 : sql_exp *e = rel_value_exp(query, &outer, n->data.sym, sql_sel | sql_from, iek);
726 :
727 2570 : if (!e)
728 : return NULL;
729 2564 : append(exps, e);
730 2564 : is_value &= exp_is_atom(e);
731 : }
732 978 : if (!is_value || (lateral && outer))
733 14 : sq = rel_project(sql->sa, NULL, exps);
734 14 : if (lateral && outer) {
735 0 : sq = rel_crossproduct(sql->sa, sq, outer, op_join);
736 0 : set_dependent(sq);
737 0 : set_processed(sq);
738 : }
739 : }
740 : }
741 1017 : if (!is_value && (!sq || (!lateral && outer)))
742 0 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: no such table returning function %s%s%s'%s'", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname);
743 1017 : if (!is_value) {
744 53 : if (list_length(exps))
745 14 : exps = sa_list(sql->sa);
746 171 : for (node *en = sq->exps->h; en; en = en->next) {
747 118 : sql_exp *e = en->data;
748 :
749 118 : if (!e->alias.label)
750 28 : exp_label(sql->sa, e, ++sql->label);
751 118 : sql_exp *ne = exp_ref(sql, e);
752 : /* allow for table functions with table input */
753 118 : ne->card = CARD_ATOM;
754 118 : exp_setname(sql, ne, tname, exp_name(e));
755 118 : append(exps, ne);
756 118 : append(tl, exp_subtype(e));
757 : }
758 : } else {
759 3503 : for (node *en = exps->h; en; en = en->next)
760 2539 : append(tl, exp_subtype(en->data));
761 : }
762 : }
763 :
764 10856 : rel = NULL;
765 10856 : if (ast->data.lval->t->type == type_symbol && ast->data.lval->t->data.sym)
766 1191 : tname = ast->data.lval->t->data.sym->data.lval->h->data.sval;
767 : else
768 9665 : tname = make_label(sql->sa, ++sql->label);
769 :
770 10856 : if (!sname && strcmp(fname, "file_loader") == 0) {
771 33 : rel = rel_file_loader(sql, exps, tl, tname);
772 33 : if (!rel)
773 : return NULL;
774 20662 : } else if (!(e = find_table_function(sql, sname, fname, list_empty(exps) ? NULL : exps, tl, F_UNION)))
775 : return NULL;
776 :
777 10804 : if (!rel) {
778 10804 : rel = sq;
779 :
780 : /* column or table function */
781 10804 : sf = e->f;
782 10804 : if (e->type != e_func || sf->func->type != F_UNION)
783 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: '%s' does not return a table", exp_func_name(e));
784 :
785 10804 : if (sq) {
786 171 : for (node *n = sq->exps->h, *m = sf->func->ops->h ; n && m ; n = n->next, m = m->next) {
787 118 : sql_exp *e = (sql_exp*) n->data;
788 118 : sql_arg *a = (sql_arg*) m->data;
789 118 : if (!exp_subtype(e) && rel_set_type_param(sql, &(a->type), sq, e, 0) < 0)
790 : return NULL;
791 : }
792 : }
793 :
794 : /* for each column add table.column name */
795 10804 : exps = new_exp_list(sql->sa);
796 107106 : for (m = sf->func->res->h; m; m = m->next) {
797 96302 : sql_arg *a = m->data;
798 96302 : sql_exp *e = exp_column(sql->sa, tname, a->name, &a->type, CARD_MULTI, 1, 0, 0);
799 96302 : e->alias.label = -(sql->nid++);
800 :
801 96302 : set_basecol(e);
802 96302 : append(exps, e);
803 : }
804 21555 : rel = rel_table_func(sql->sa, rel, e, exps, (sq)?TABLE_FROM_RELATION:TABLE_PROD_FUNC);
805 : }
806 10818 : if (ast->data.lval->t->type == type_symbol && ast->data.lval->t->data.sym && ast->data.lval->t->data.sym->data.lval->h->next->data.lval) {
807 25 : rel = rel_table_optname(sql, rel, ast->data.lval->t->data.sym, refs);
808 10793 : } else if (refs) { /* if this relation is under a FROM clause, check for duplicate names */
809 10793 : if (list_find(refs, tname, (fcmp) &strcmp))
810 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: relation name \"%s\" specified more than once", tname);
811 10793 : list_append(refs, tname);
812 : }
813 : return rel;
814 : }
815 :
816 : static sql_exp *
817 1826 : rel_op_(mvc *sql, char *sname, char *fname, exp_kind ek)
818 : {
819 1826 : bool found = false;
820 1826 : sql_subfunc *f = NULL;
821 1826 : sql_ftype type = (ek.card == card_loader)?F_LOADER:((ek.card == card_none)?F_PROC:
822 : ((ek.card == card_relation)?F_UNION:F_FUNC));
823 :
824 1826 : if ((f = bind_func_(sql, sname, fname, NULL, type, false, &found, true))) {
825 1810 : if (check_card(ek.card, f))
826 1810 : return exp_op(sql->sa, NULL, f);
827 0 : found = false;
828 : }
829 32 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s operator %s%s%s'%s'()",
830 16 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname);
831 : }
832 :
833 : static sql_exp*
834 4098 : exp_tuples_set_supertype(mvc *sql, list *tuple_values, sql_exp *tuples)
835 : {
836 4098 : assert(is_values(tuples));
837 4098 : list *vals = exp_get_values(tuples);
838 4098 : if (!vals || !vals->h)
839 : return NULL;
840 :
841 4098 : int tuple_width = list_length(tuple_values), i;
842 4098 : sql_subtype *types = SA_NEW_ARRAY(sql->sa, sql_subtype, tuple_width);
843 4098 : bool *has_type = SA_NEW_ARRAY(sql->sa, bool, tuple_width);
844 4098 : node *n;
845 :
846 4098 : memset(has_type, 0, sizeof(bool)*tuple_width);
847 13338 : for(n = tuple_values->h, i = 0; n; n = n->next, i++) {
848 9240 : sql_exp *e = n->data;
849 9240 : if (exp_subtype(e)) {
850 9238 : types[i] = *exp_subtype(e);
851 9238 : has_type[i] = 1;
852 : }
853 : }
854 :
855 8198 : for (node *m = vals->h; m; m = m->next) {
856 4100 : sql_exp *tuple = m->data;
857 4100 : if (is_values(tuple)) {
858 3 : list *exps = tuple->f;
859 9 : for(n = exps->h, i = 0; n; n = n->next, i++) {
860 6 : sql_subtype *tpe;
861 6 : sql_exp *e = n->data;
862 :
863 6 : if (has_type[i] && e->type == e_atom && !e->l && !e->r && !e->f && !e->tpe.type) {
864 0 : if (set_type_param(sql, types+i, e->flag) == 0)
865 0 : e->tpe = types[i];
866 : else
867 : return NULL;
868 : }
869 6 : tpe = exp_subtype(e);
870 6 : if (!tpe)
871 : return NULL;
872 6 : if (has_type[i] && tpe) {
873 6 : supertype(types+i, types+i, tpe);
874 : } else {
875 0 : has_type[i] = 1;
876 0 : types[i] = *tpe;
877 : }
878 : }
879 : } else {
880 4097 : sql_rel *tuple_relation = exp_rel_get_rel(sql->sa, tuple);
881 :
882 13335 : for(n = tuple_relation->exps->h, i = 0; n; n = n->next, i++) {
883 9238 : sql_subtype *tpe;
884 9238 : sql_exp *e = n->data;
885 :
886 9238 : if (has_type[i] && e->type == e_atom && !e->l && !e->r && !e->f && !e->tpe.type) {
887 5 : if (set_type_param(sql, types+i, e->flag) == 0)
888 5 : e->tpe = types[i];
889 : else
890 : return NULL;
891 : }
892 9238 : tpe = exp_subtype(e);
893 9238 : if (!tpe)
894 : return NULL;
895 9238 : if (has_type[i] && tpe) {
896 9236 : cmp_supertype(types+i, types+i, tpe);
897 : } else {
898 2 : has_type[i] = 1;
899 2 : types[i] = *tpe;
900 : }
901 : }
902 : }
903 : }
904 :
905 8198 : for (node *m = vals->h; m; m = m->next) {
906 4100 : sql_exp *tuple = m->data;
907 4100 : if (is_values(tuple)) {
908 3 : list *exps = tuple->f;
909 3 : list *nexps = sa_list(sql->sa);
910 9 : for(n = exps->h, i = 0; n; n = n->next, i++) {
911 6 : sql_exp *e = n->data;
912 :
913 6 : e = exp_check_type(sql, types+i, NULL, e, type_equal);
914 6 : if (!e)
915 : return NULL;
916 6 : exp_label(sql->sa, e, ++sql->label);
917 6 : append(nexps, e);
918 : }
919 3 : tuple->f = nexps;
920 : } else {
921 4097 : sql_rel *tuple_relation = exp_rel_get_rel(sql->sa, tuple);
922 :
923 4097 : list *nexps = sa_list(sql->sa);
924 13335 : for(n = tuple_relation->exps->h, i = 0; n; n = n->next, i++) {
925 9238 : sql_exp *e = n->data;
926 :
927 9238 : e = exp_check_type(sql, types+i, NULL, e, type_equal);
928 9238 : if (!e)
929 : return NULL;
930 9238 : append(nexps, e);
931 : }
932 4097 : tuple_relation->exps = nexps;
933 : }
934 : }
935 : return tuples;
936 : }
937 :
938 : static int
939 9240 : rel_binop_check_types(mvc *sql, sql_rel *rel, sql_exp *ls, sql_exp *rs, int upcast)
940 : {
941 9240 : sql_subtype *t1 = exp_subtype(ls), *t2 = exp_subtype(rs);
942 :
943 9240 : if (!t1 || !t2) {
944 2 : if (t2 && !t1 && rel_set_type_param(sql, t2, rel, ls, upcast) < 0)
945 : return -1;
946 2 : if (t1 && !t2 && rel_set_type_param(sql, t1, rel, rs, upcast) < 0)
947 : return -1;
948 : }
949 9240 : if (!exp_subtype(ls) && !exp_subtype(rs)) {
950 0 : (void) sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) on both sides of an expression");
951 0 : return -1;
952 : }
953 : return 0;
954 : }
955 :
956 : static list *
957 4098 : tuples_check_types(mvc *sql, list *tuple_values, sql_exp *tuples)
958 : {
959 4098 : list *tuples_list = exp_get_values(tuples);
960 4098 : sql_exp *first_tuple = tuples_list->h->data;
961 4098 : list *nvalues = sa_list(sql->sa);
962 4098 : if (is_values(first_tuple)) {
963 1 : list *vals = first_tuple->f;
964 :
965 3 : for (node *n = tuple_values->h, *m = vals->h; n && m; n = n->next, m = m->next) {
966 2 : sql_exp *le = n->data, *re = m->data;
967 :
968 2 : if (rel_binop_check_types(sql, NULL, le, re, 0) < 0)
969 : return NULL;
970 2 : if ((le = exp_check_type(sql, exp_subtype(re), NULL, le, type_equal)) == NULL)
971 : return NULL;
972 2 : append(nvalues, le);
973 : }
974 : return nvalues;
975 : } else {
976 4097 : sql_rel *tuple_relation = exp_rel_get_rel(sql->sa, first_tuple);
977 :
978 4097 : assert(list_length(tuple_values) == list_length(tuple_relation->exps));
979 13335 : for (node *n = tuple_values->h, *m = tuple_relation->exps->h; n && m; n = n->next, m = m->next) {
980 9238 : sql_exp *le = n->data, *re = m->data;
981 :
982 9238 : if (rel_binop_check_types(sql, NULL, le, re, 0) < 0)
983 : return NULL;
984 9238 : if ((le = exp_check_type(sql, exp_subtype(re), NULL, le, type_equal)) == NULL)
985 : return NULL;
986 9238 : append(nvalues, le);
987 : }
988 : return nvalues;
989 : }
990 : return tuple_values;
991 : }
992 :
993 : static sql_rel *
994 3730 : rel_values(sql_query *query, symbol *tableref, list *refs)
995 : {
996 3730 : mvc *sql = query->sql;
997 3730 : sql_rel *r = NULL;
998 3730 : dlist *rowlist = tableref->data.lval->h->data.lval;
999 3730 : symbol *optname = tableref->data.lval->t->type == type_symbol ? tableref->data.lval->t->data.sym : NULL;
1000 3730 : node *m;
1001 3730 : list *exps = sa_list(sql->sa);
1002 3730 : exp_kind ek = {type_value, card_value, TRUE};
1003 :
1004 14940 : for (dnode *o = rowlist->h; o; o = o->next) {
1005 11220 : dlist *values = o->data.lval;
1006 :
1007 11220 : if (!list_empty(exps) && list_length(exps) != dlist_length(values)) {
1008 3 : return sql_error(sql, 02, SQLSTATE(42000) "VALUES: number of columns doesn't match between rows");
1009 : } else {
1010 11217 : dnode *n;
1011 :
1012 11217 : if (list_empty(exps)) {
1013 10637 : for (n = values->h; n; n = n->next) {
1014 6907 : sql_exp *vals = exp_values(sql->sa, sa_list(sql->sa));
1015 :
1016 6907 : exp_label(sql->sa, vals, ++sql->label);
1017 6907 : list_append(exps, vals);
1018 : }
1019 : }
1020 34319 : for (n = values->h, m = exps->h; n && m; n = n->next, m = m->next) {
1021 23109 : sql_exp *vals = m->data;
1022 23109 : list *vals_list = vals->f;
1023 23109 : sql_exp *e = rel_value_exp(query, NULL, n->data.sym, sql_sel | sql_values, ek);
1024 23109 : if (!e)
1025 : return NULL;
1026 23102 : list_append(vals_list, e);
1027 : }
1028 : }
1029 : }
1030 :
1031 : /* loop to check types and cardinality */
1032 3720 : unsigned int card = exps->h && list_length(((sql_exp*)exps->h->data)->f) > 1 ? CARD_MULTI : CARD_ATOM;
1033 10610 : for (m = exps->h; m; m = m->next) {
1034 6893 : sql_exp *e = m->data;
1035 :
1036 6893 : if (!(e = exp_values_set_supertype(sql, e, NULL)))
1037 : return NULL;
1038 6890 : e->card = card;
1039 6890 : m->data = e;
1040 : }
1041 :
1042 3717 : r = rel_project(sql->sa, NULL, exps);
1043 3717 : r->nrcols = list_length(exps);
1044 3717 : r->card = card;
1045 3717 : return rel_table_optname(sql, r, optname, refs);
1046 : }
1047 :
1048 : static int
1049 496303 : check_is_lateral(symbol *tableref)
1050 : {
1051 496303 : if (tableref->token == SQL_NAME || tableref->token == SQL_TABLE ||
1052 : tableref->token == SQL_VALUES) {
1053 444945 : if (dlist_length(tableref->data.lval) == 3)
1054 444133 : return tableref->data.lval->h->next->data.i_val;
1055 : return 0;
1056 : } else if (tableref->token == SQL_WITH) {
1057 941 : if (dlist_length(tableref->data.lval) == 4)
1058 5 : return tableref->data.lval->h->next->next->data.i_val;
1059 : return 0;
1060 : } else if (tableref->token == SQL_SELECT) {
1061 3612 : SelectNode *sn = (SelectNode *) tableref;
1062 3612 : return sn->lateral;
1063 : } else if (tableref->token == SQL_EXCEPT || tableref->token == SQL_INTERSECT ||
1064 : tableref->token == SQL_UNION) {
1065 10678 : if (dlist_length(tableref->data.lval) == 6)
1066 9016 : return tableref->data.lval->h->next->next->next->next->data.i_val;
1067 : return 0;
1068 : } else {
1069 : return 0;
1070 : }
1071 : }
1072 :
1073 : static sql_rel *
1074 25 : rel_reduce_on_column_privileges(mvc *sql, sql_rel *rel, sql_table *t)
1075 : {
1076 25 : list *exps = sa_list(sql->sa);
1077 :
1078 99 : for (node *n = rel->exps->h, *m = ol_first_node(t->columns); n && m; n = n->next, m = m->next) {
1079 74 : sql_exp *e = n->data;
1080 74 : sql_column *c = m->data;
1081 :
1082 74 : if (column_privs(sql, c, PRIV_SELECT))
1083 12 : append(exps, e);
1084 : }
1085 25 : if (!list_empty(exps)) {
1086 9 : rel->exps = exps;
1087 9 : return rel;
1088 : }
1089 : return NULL;
1090 : }
1091 :
1092 : sql_rel *
1093 677173 : table_ref(sql_query *query, symbol *tableref, int lateral, list *refs)
1094 : {
1095 677173 : mvc *sql = query->sql;
1096 677173 : char *tname = NULL;
1097 677173 : sql_table *t = NULL;
1098 677173 : sql_rel *res = NULL;
1099 :
1100 677173 : if (tableref->token == SQL_NAME) {
1101 466228 : dlist *name = tableref->data.lval->h->data.lval;
1102 466228 : sql_rel *temp_table = NULL;
1103 466228 : char *sname = qname_schema(name);
1104 466228 : int allowed = 1;
1105 :
1106 466228 : tname = qname_schema_object(name);
1107 :
1108 466228 : if (dlist_length(name) > 2)
1109 4 : return sql_error(sql, 02, SQLSTATE(3F000) "SELECT: only a schema and table name expected");
1110 :
1111 466224 : if (!sname)
1112 113372 : temp_table = stack_find_rel_view(sql, tname);
1113 113372 : if (!temp_table)
1114 449393 : t = find_table_or_view_on_scope(sql, NULL, sname, tname, "SELECT", false);
1115 466224 : if (!t && !temp_table)
1116 : return NULL;
1117 466125 : if (!temp_table && !table_privs(sql, t, PRIV_SELECT))
1118 466125 : allowed = 0;
1119 :
1120 466125 : if (tableref->data.lval->t->type == type_symbol && tableref->data.lval->t->data.sym) /* AS */
1121 272587 : tname = tableref->data.lval->t->data.sym->data.lval->h->data.sval;
1122 466125 : if (temp_table && !t) {
1123 16831 : node *n;
1124 16831 : int needed = !is_simple_project(temp_table->op);
1125 :
1126 16831 : if (is_basetable(temp_table->op) && !temp_table->exps) {
1127 0 : if (strcmp(rel_base_name(temp_table), tname) != 0)
1128 0 : rel_base_rename(temp_table, tname);
1129 : } else {
1130 60210 : for (n = temp_table->exps->h; n && !needed; n = n->next) {
1131 43379 : sql_exp *e = n->data;
1132 :
1133 43379 : if (!exp_relname(e) || strcmp(exp_relname(e), tname) != 0)
1134 : needed = 1;
1135 : }
1136 :
1137 16831 : if (needed) {
1138 6817 : list *exps = rel_projections(sql, temp_table, NULL, 1, 1);
1139 :
1140 6817 : temp_table = rel_project(sql->sa, temp_table, exps);
1141 24458 : for (n = exps->h; n; n = n->next) {
1142 17641 : sql_exp *e = n->data;
1143 :
1144 17641 : noninternexp_setname(sql, e, tname, NULL);
1145 17641 : set_basecol(e);
1146 : }
1147 6817 : list_hash_clear(exps);
1148 : }
1149 : }
1150 16831 : if (temp_table && tableref->data.lval->t->type == type_symbol && tableref->data.lval->t->data.sym && tableref->data.lval->t->data.sym->data.lval->h->next->data.lval) /* AS with column aliases */
1151 1 : temp_table = rel_table_optname(sql, temp_table, tableref->data.lval->t->data.sym, refs);
1152 16831 : if (allowed)
1153 : return temp_table;
1154 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: access denied for %s to table '%s'", get_string_global_var(sql, "current_user"), tname);
1155 449294 : } else if (isView(t)) {
1156 : /* instantiate base view */
1157 69477 : node *n,*m;
1158 69477 : sql_rel *rel;
1159 :
1160 69477 : if (sql->emode == m_deps) {
1161 24382 : rel = rel_basetable(sql, t, tname);
1162 24382 : if (!allowed)
1163 0 : rel_base_disallow(rel);
1164 : } else {
1165 : /* when recreating a view, the view itself can't be found */
1166 45095 : if (sql->objid && sql->objid == t->base.id)
1167 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: attempting to recursively bind view '%s'.'%s'", t->s->base.name, tname);
1168 45094 : rel = rel_parse(sql, t->s, t->query, m_instantiate);
1169 45094 : if (rel && sql->emode == m_deps)
1170 0 : rel = rel_unnest(sql, rel);
1171 : }
1172 :
1173 69474 : if (!rel)
1174 2 : return NULL;
1175 : /* Rename columns of the rel_parse relation */
1176 69474 : if (sql->emode != m_deps) {
1177 45092 : assert(is_project(rel->op));
1178 45092 : set_processed(rel);
1179 45092 : if (is_mset(rel->op) || is_simple_project(rel->op) || (is_groupby(rel->op) && !list_empty(rel->r))) {
1180 : /* it's unsafe to set the projection names because of possible dependent sorting/grouping columns */
1181 45092 : rel = rel_project(sql->sa, rel, rel_projections(sql, rel, NULL, 0, 0));
1182 45092 : set_processed(rel);
1183 : }
1184 407450 : for (n = ol_first_node(t->columns), m = rel->exps->h; n && m; n = n->next, m = m->next) {
1185 362358 : sql_column *c = n->data;
1186 362358 : sql_exp *e = m->data;
1187 :
1188 362358 : exp_setname(sql, e, tname, c->base.name);
1189 362358 : set_basecol(e);
1190 : }
1191 45092 : list_hash_clear(rel->exps);
1192 : }
1193 69474 : if (rel && !allowed && t->query && (rel = rel_reduce_on_column_privileges(sql, rel, t)) == NULL)
1194 16 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: access denied for %s to view '%s.%s'", get_string_global_var(sql, "current_user"), t->s->base.name, tname);
1195 69458 : return rel;
1196 : }
1197 379817 : if ((isMergeTable(t) || isReplicaTable(t)) && list_length(t->members)==0)
1198 14 : return sql_error(sql, 02, SQLSTATE(42000) "%s '%s'.'%s' should have at least one table associated",
1199 14 : TABLE_TYPE_DESCRIPTION(t->type, t->properties), t->s->base.name, tname);
1200 379803 : res = rel_basetable(sql, t, tname);
1201 379803 : if (!allowed) {
1202 53 : rel_base_disallow(res);
1203 53 : if (rel_base_has_column_privileges(sql, res) == 0)
1204 62 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: access denied for %s to %s '%s.%s'", get_string_global_var(sql, "current_user"), isView(t) ? "view" : "table", t->s->base.name, tname);
1205 : }
1206 379772 : if (tableref->data.lval->t->type == type_symbol && tableref->data.lval->t->data.sym && tableref->data.lval->t->data.sym->data.lval->h->next->data.lval) { /* AS with column aliases */
1207 8 : res = rel_table_optname(sql, res, tableref->data.lval->t->data.sym, refs);
1208 379764 : } else if (refs) { /* if this relation is under a FROM clause, check for duplicate names */
1209 379759 : if (list_find(refs, tname, (fcmp) &strcmp))
1210 7 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: relation name \"%s\" specified more than once", tname);
1211 379752 : assert(tname);
1212 379752 : list_append(refs, tname);
1213 : }
1214 379765 : return res;
1215 : } else if (tableref->token == SQL_VALUES) {
1216 1340 : return rel_values(query, tableref, refs);
1217 : } else if (tableref->token == SQL_TABLE) {
1218 10868 : return rel_named_table_function(query, NULL, tableref, lateral, refs);
1219 : } else if (tableref->token == SQL_SELECT) {
1220 97527 : return rel_subquery_optname(query, tableref, refs);
1221 : } else if (tableref->token == SQL_UNION || tableref->token == SQL_EXCEPT || tableref->token == SQL_INTERSECT) {
1222 : /* subqueries will be called, ie no need to test for duplicate references */
1223 41596 : sql_rel *tq = rel_setquery(query, tableref);
1224 :
1225 41596 : if (!tq)
1226 : return NULL;
1227 : /* look for lateral joins */
1228 41594 : symbol *optname = tableref->data.lval->t->type == type_symbol ? tableref->data.lval->t->data.sym : NULL;
1229 41594 : return rel_table_optname(sql, tq, optname, refs);
1230 : } else {
1231 59614 : return query_exp_optname(query, tableref, refs);
1232 : }
1233 : }
1234 :
1235 : static sql_exp *
1236 120835 : rel_exp_variable_on_scope(mvc *sql, const char *sname, const char *vname)
1237 : {
1238 120835 : sql_subtype *tpe = NULL;
1239 120835 : sql_var *var = NULL;
1240 120835 : sql_arg *a = NULL;
1241 120835 : int level = 1;
1242 :
1243 120835 : if (find_variable_on_scope(sql, sname, vname, &var, &a, &tpe, &level, "SELECT")) {
1244 119930 : if (var) /* if variable is known from the stack or a global var */
1245 37360 : return exp_param_or_declared(sql->sa, var->sname ? sa_strdup(sql->sa, var->sname) : NULL, sa_strdup(sql->sa, var->name), &(var->var.tpe), level);
1246 87550 : if (a) /* if variable is a parameter */
1247 87550 : return exp_param_or_declared(sql->sa, NULL, sa_strdup(sql->sa, vname), &(a->type), level);
1248 : }
1249 : return NULL;
1250 : }
1251 :
1252 : static sql_exp *
1253 9247 : exps_get_exp(list *exps, int nth)
1254 : {
1255 9247 : node *n = NULL;
1256 9247 : int i = 0;
1257 :
1258 9247 : if (exps)
1259 27170 : for (n=exps->h, i=1; n && i<nth; n=n->next, i++)
1260 : ;
1261 9247 : if (n && i == nth)
1262 9244 : return n->data;
1263 : return NULL;
1264 : }
1265 :
1266 : static sql_rel *
1267 27795 : rel_find_groupby(sql_rel *groupby)
1268 : {
1269 27795 : if (groupby && !is_processed(groupby) && !is_base(groupby->op)) {
1270 37391 : while(!is_processed(groupby) && !is_base(groupby->op)) {
1271 29593 : if (is_groupby(groupby->op) || !groupby->l)
1272 : break;
1273 : if (groupby->l)
1274 : groupby = groupby->l;
1275 : }
1276 27671 : if (groupby && is_groupby(groupby->op))
1277 19873 : return groupby;
1278 : }
1279 : return NULL;
1280 : }
1281 :
1282 : static int
1283 306 : is_groupby_col(sql_rel *gb, sql_exp *e)
1284 : {
1285 306 : gb = rel_find_groupby(gb);
1286 :
1287 306 : if (gb) {
1288 174 : if (exp_relname(e)) {
1289 163 : if (exp_name(e) && exps_bind_column2(gb->r, exp_relname(e), exp_name(e), NULL))
1290 : return 1;
1291 : } else {
1292 11 : if (exp_name(e) && exps_bind_column(gb->r, exp_name(e), NULL, NULL, 1))
1293 : return 1;
1294 : }
1295 : }
1296 : return 0;
1297 : }
1298 :
1299 : static void
1300 4721 : set_dependent_( sql_rel *r)
1301 : {
1302 4721 : if (is_select(r->op))
1303 3581 : r = r->l;
1304 4721 : if (r && is_join(r->op))
1305 1194 : set_dependent(r);
1306 4721 : }
1307 :
1308 : static
1309 15 : sql_rel* find_union(visitor *v, sql_rel *rel) {
1310 15 : if (rel->op == op_union || rel->op == op_munion)
1311 1 : v->data = rel;
1312 15 : return rel;
1313 : }
1314 :
1315 : static inline
1316 54 : bool group_by_pk_project_uk_cond(mvc* sql, sql_rel* inner, sql_exp* exp,const char* sname, const char* tname) {
1317 54 : sql_table* t = find_table_or_view_on_scope(sql, NULL, sname, tname, "SELECT", false);
1318 54 : bool allow = false;
1319 54 : if (t) {
1320 17 : sql_idx* pki = NULL;
1321 17 : list *ukil = sa_list(sql->sa);
1322 :
1323 23 : for (node * n = ol_first_node(t->idxs); n; n = n->next) {
1324 6 : sql_idx *i = n->data;
1325 6 : if (!i->key)
1326 1 : continue;
1327 5 : switch (i->key->type) {
1328 3 : case pkey:
1329 3 : pki = i;
1330 3 : continue;
1331 2 : case ukey:
1332 : case unndkey:
1333 2 : list_append(ukil, i);
1334 2 : continue;
1335 0 : default:
1336 0 : continue;
1337 : }
1338 : }
1339 17 : if (pki && pki->columns->cnt == 1 && inner->r && ((list*) inner->r)->cnt == 1) {
1340 : /* for now only check simple case where primary key and group by expression is a single column*/
1341 3 : sql_exp* gbe = ((list*) inner->r)->h->data;
1342 3 : sql_column* pkc = ((sql_kc *)pki->columns->h->data)->c;
1343 3 : if (gbe->type == e_column && strcmp(gbe->alias.name, pkc->base.name) == 0) {
1344 2 : node *n;
1345 2 : for (n = ukil->h; n; n = n->next){
1346 2 : sql_idx* uki = n->data;
1347 2 : if (uki->columns->cnt == 1) {
1348 : /* for now only check simple case where unique key is a single column*/
1349 2 : sql_column* ukc = ((sql_kc *)uki->columns->h->data)->c;
1350 2 : if (strcmp(exp->alias.name, ukc->base.name) == 0) {
1351 : allow = true;
1352 : break;
1353 : }
1354 : }
1355 : }
1356 : }
1357 : }
1358 :
1359 2 : if (allow) {
1360 : /* sufficiency condition: abort if relation contains union subrelation
1361 : * because it may break functional dependency between pk and uk */
1362 2 : visitor v = {.sql=sql};
1363 2 : rel_visitor_topdown(&v, inner, &find_union);
1364 2 : if (v.data)
1365 1 : allow = false;
1366 : }
1367 : }
1368 :
1369 54 : return allow;
1370 :
1371 : }
1372 :
1373 : static sql_exp *
1374 2335273 : rel_column_ref(sql_query *query, sql_rel **rel, symbol *column_r, int f)
1375 : {
1376 2335273 : mvc *sql = query->sql;
1377 2335273 : sql_exp *exp = NULL;
1378 2335273 : dlist *l = NULL;
1379 2335273 : sql_rel *inner = rel?*rel:NULL, *outer = NULL;
1380 2335273 : int used_lower_after_processed = 0;
1381 :
1382 2335273 : assert((column_r->token == SQL_COLUMN || column_r->token == SQL_IDENT) && column_r->type == type_list);
1383 2335273 : l = column_r->data.lval;
1384 :
1385 2335273 : if (dlist_length(l) == 1) {
1386 1103895 : const char *name = l->h->data.sval;
1387 :
1388 1103895 : if (!exp && inner)
1389 1009546 : if (!(exp = rel_bind_column(sql, inner, name, f, 0)) && sql->session->status == -ERR_AMBIGUOUS)
1390 : return NULL;
1391 1103881 : if (!exp && inner && ((is_sql_aggr(f) && (is_groupby(inner->op) || is_select(inner->op))) ||
1392 23869 : (is_groupby(inner->op) && inner->flag))) {
1393 : /* if inner is selection, ie having clause, get the left relation to reach group by */
1394 : sql_rel *gp = inner;
1395 258 : while (gp && is_select(gp->op))
1396 27 : gp = gp->l;
1397 231 : if (gp && !is_basetable(gp->op) && gp->l && !(exp = rel_bind_column(sql, gp->l, name, f, 0)) && sql->session->status == -ERR_AMBIGUOUS)
1398 : return NULL;
1399 : }
1400 1103881 : if (!exp && query && query_has_outer(query)) {
1401 448 : int i;
1402 :
1403 501 : for (i=query_has_outer(query)-1; i>= 0 && !exp && (outer = query_fetch_outer(query,i)); i--) {
1404 472 : if (!(exp = rel_bind_column(sql, outer, name, f, 0)) && sql->session->status == -ERR_AMBIGUOUS)
1405 : return NULL;
1406 84 : if (!exp && is_groupby(outer->op)) {
1407 31 : if (!(exp = rel_bind_column(sql, outer->l, name, f, 0)) && sql->session->status == -ERR_AMBIGUOUS)
1408 : return NULL;
1409 : else
1410 31 : used_lower_after_processed = is_processed(outer);
1411 : }
1412 472 : if (exp && is_simple_project(outer->op) && !rel_find_exp(outer, exp))
1413 0 : exp = rel_project_add_exp(sql, outer, exp);
1414 419 : if (exp)
1415 : break;
1416 : }
1417 448 : if (exp && exp->card != CARD_AGGR && is_groupby(outer->op) && !is_sql_aggr(f) && rel_find_exp(outer->l, exp))
1418 5 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", name);
1419 443 : if (exp && outer && outer->card <= CARD_AGGR && exp->card > CARD_AGGR && !is_sql_aggr(f))
1420 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", name);
1421 443 : if (exp && outer && !is_sql_aggr(f) && !is_sql_aggr(query_fetch_outer_state(query, i))) {
1422 275 : if (used_lower_after_processed || query_outer_used_exp( query, i, exp, f)) {
1423 0 : sql_exp *lu = used_lower_after_processed?exp:query_outer_last_used(query, i);
1424 0 : if (exp_name(lu) && exp_relname(lu) && !has_label(lu))
1425 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column \"%s.%s\" from outer query", exp_relname(lu), exp_name(lu));
1426 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
1427 : }
1428 : }
1429 443 : if (exp) {
1430 414 : int of = query_fetch_outer_state(query, i);
1431 414 : if (is_groupby(outer->op) && !is_sql_aggr(f)) {
1432 37 : exp = rel_groupby_add_aggr(sql, outer, exp);
1433 37 : exp->card = CARD_ATOM;
1434 377 : } else if (is_groupby(outer->op) && is_sql_aggr(f) && exps_any_match(outer->exps, exp))
1435 57 : exp = exp_ref(sql, exp);
1436 : else
1437 320 : exp->card = CARD_ATOM;
1438 414 : set_freevar(exp, i);
1439 : /*
1440 : if (exp->alias.label == exp->nid)
1441 : exp->alias.label = -(sql->nid++);
1442 : */
1443 414 : if (!is_sql_where(of) && !is_sql_aggr(of) && !is_sql_aggr(f) && !outer->grouped)
1444 125 : set_outer(outer);
1445 : }
1446 443 : if (exp && outer && (is_select(outer->op) || is_join(outer->op)))
1447 31 : set_dependent_(outer);
1448 : }
1449 :
1450 : /* some views are just in the stack, like before and after updates views */
1451 1103876 : if (rel && sql->use_views) {
1452 13 : sql_rel *v = NULL;
1453 13 : int dup = stack_find_rel_view_projection_columns(sql, name, &v); /* trigger views are basetables relations, so those may conflict */
1454 :
1455 13 : if (dup < 0 || (v && exp && *rel && is_base(v->op) && v != *rel)) /* comparing pointers, ugh */
1456 2 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "SELECT: identifier '%s' ambiguous", name);
1457 11 : if (v && !exp) {
1458 4 : if (*rel)
1459 1 : *rel = rel_crossproduct(sql->sa, *rel, rel_dup(v), op_join);
1460 : else
1461 3 : *rel = rel_dup(v);
1462 4 : exp = rel_bind_column(sql, *rel, name, f, 0);
1463 : }
1464 : }
1465 1103874 : if (!exp) /* If no column was found, try a variable or parameter */
1466 117828 : exp = rel_exp_variable_on_scope(sql, NULL, name);
1467 :
1468 117828 : if (!exp) {
1469 905 : if (inner && !is_sql_aggr(f) && is_groupby(inner->op) && inner->l && (exp = rel_bind_column(sql, inner->l, name, f, 0)))
1470 46 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", name);
1471 : }
1472 :
1473 1102969 : if (!exp)
1474 859 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: identifier '%s' unknown", name);
1475 1102969 : if (exp && inner && inner->card <= CARD_AGGR && exp->card > CARD_AGGR && (is_sql_sel(f) || is_sql_having(f)) && (!is_sql_aggr(f) && !(inner->flag)))
1476 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", name);
1477 1102969 : if (exp && inner && is_groupby(inner->op) && !is_sql_aggr(f) && !is_freevar(exp) && !inner->flag)
1478 25016 : exp = rel_groupby_add_aggr(sql, inner, exp);
1479 1231378 : } else if (dlist_length(l) == 2 || dlist_length(l) == 3) {
1480 1231378 : const char *sname = NULL;
1481 1231378 : const char *tname = l->h->data.sval;
1482 1231378 : const char *cname = l->h->next->data.sval;
1483 1231378 : if (dlist_length(l) == 3) {
1484 1 : sname = l->h->data.sval;
1485 1 : tname = l->h->next->data.sval;
1486 1 : cname = l->h->next->next->data.sval;
1487 : }
1488 :
1489 1231378 : if (!exp && rel && inner)
1490 1231251 : if (!(exp = rel_bind_column3(sql, inner, sname, tname, cname, f)) && sql->session->status == -ERR_AMBIGUOUS)
1491 : return NULL;
1492 1231377 : if (!exp && inner && is_sql_aggr(f) && (is_groupby(inner->op) || is_select(inner->op))) {
1493 : /* if inner is selection, ie having clause, get the left relation to reach group by */
1494 : sql_rel *gp = inner;
1495 56 : while (gp && is_select(gp->op))
1496 4 : gp = gp->l;
1497 52 : if (gp && !is_basetable(gp->op) && gp->l && !(exp = rel_bind_column3(sql, gp->l, sname, tname, cname, f)) && sql->session->status == -ERR_AMBIGUOUS)
1498 : return NULL;
1499 : }
1500 1231377 : if (!exp && query && query_has_outer(query)) {
1501 11808 : int i;
1502 :
1503 12018 : for (i=query_has_outer(query)-1; i>= 0 && !exp && (outer = query_fetch_outer(query,i)); i--) {
1504 12017 : if (!(exp = rel_bind_column3(sql, outer, sname, tname, cname, f | sql_outer)) && sql->session->status == -ERR_AMBIGUOUS)
1505 : return NULL;
1506 293 : if (!exp && is_groupby(outer->op)) {
1507 102 : if (!(exp = rel_bind_column3(sql, outer->l, sname, tname, cname, f)) && sql->session->status == -ERR_AMBIGUOUS)
1508 : return NULL;
1509 : else
1510 102 : used_lower_after_processed = is_processed(outer);
1511 : }
1512 12017 : if (exp && is_simple_project(outer->op) && !rel_find_exp(outer, exp))
1513 0 : exp = rel_project_add_exp(sql, outer, exp);
1514 11807 : if (exp)
1515 : break;
1516 : }
1517 11808 : if (exp && exp->card != CARD_AGGR && is_groupby(outer->op) && !is_sql_aggr(f) && rel_find_exp(outer->l, exp))
1518 6 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", tname, cname);
1519 11802 : if (exp && outer && outer->card <= CARD_AGGR && exp->card > CARD_AGGR && !is_sql_aggr(f))
1520 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", tname, cname);
1521 11802 : if (exp && outer && !is_sql_aggr(f)) {
1522 11527 : if (used_lower_after_processed || query_outer_used_exp( query, i, exp, f)) {
1523 0 : sql_exp *lu = used_lower_after_processed?exp:query_outer_last_used(query, i);
1524 0 : if (exp_name(lu) && exp_relname(lu) && !has_label(lu))
1525 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column \"%s.%s\" from outer query", exp_relname(lu), exp_name(lu));
1526 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
1527 : }
1528 : }
1529 11802 : if (exp) {
1530 11801 : int of = query_fetch_outer_state(query, i);
1531 11801 : if (is_groupby(outer->op) && !is_sql_aggr(f)) {
1532 64 : exp = rel_groupby_add_aggr(sql, outer, exp);
1533 64 : exp->card = CARD_ATOM;
1534 11737 : } else if (is_groupby(outer->op) && is_sql_aggr(f) && exps_any_match(outer->exps, exp))
1535 52 : exp = exp_ref(sql, exp);
1536 : else
1537 11685 : exp->card = CARD_ATOM;
1538 11801 : set_freevar(exp, i);
1539 : /*
1540 : if (exp->alias.label == exp->nid)
1541 : exp->alias.label = -(sql->nid++);
1542 : */
1543 11801 : if (!is_sql_where(of) && !is_sql_aggr(of) && !is_sql_aggr(f) && !outer->grouped)
1544 10113 : set_outer(outer);
1545 : }
1546 11802 : if (exp && outer && (is_select(outer->op) || is_join(outer->op)))
1547 4690 : set_dependent_(outer);
1548 : }
1549 :
1550 : /* some views are just in the stack, like before and after updates views */
1551 1231371 : if (rel && sql->use_views) {
1552 40 : sql_rel *v = stack_find_rel_view(sql, tname);
1553 :
1554 40 : if (v && exp && *rel && is_base(v->op) && v != *rel) /* trigger views are basetables relations, so those may conflict */
1555 0 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "SELECT: identifier '%s.%s' ambiguous", tname, cname);
1556 40 : if (v && !exp) {
1557 20 : if (*rel)
1558 0 : *rel = rel_crossproduct(sql->sa, *rel, rel_dup(v), op_join);
1559 : else
1560 20 : *rel = rel_dup(v);
1561 20 : if (!(exp = rel_bind_column3(sql, *rel, sname, tname, cname, f)) && sql->session->status == -ERR_AMBIGUOUS)
1562 : return NULL;
1563 : }
1564 : }
1565 1231351 : if (!exp) { /* If no column was found, try a global variable */
1566 66249 : sql_var *var = NULL;
1567 66249 : sql_subtype *tpe = NULL;
1568 66249 : int level = 0;
1569 66249 : sql_arg *a = NULL;
1570 :
1571 66249 : if (find_variable_on_scope(sql, tname, cname, &var, &a, &tpe, &level, "SELECT")) { /* search schema with table name, ugh */
1572 10 : assert(level == 0);
1573 10 : exp = exp_param_or_declared(sql->sa, sa_strdup(sql->sa, var->sname), sa_strdup(sql->sa, var->name), &(var->var.tpe), 0);
1574 : }
1575 : }
1576 66249 : if (!exp) {
1577 66239 : if (inner && !is_sql_aggr(f) && is_groupby(inner->op) && inner->l && (exp = rel_bind_column3(sql, inner->l, sname, tname, cname, f))) {
1578 54 : if (group_by_pk_project_uk_cond(sql, inner, exp, sname, tname)) {
1579 : /* SQL23 feature: very special case where primary key is used in GROUP BY expression and
1580 : * unique key is in the project list or ORDER BY clause */
1581 1 : sql->session->status = 0;
1582 1 : sql->errstr[0] = 0;
1583 1 : exp->card = CARD_AGGR;
1584 1 : list_append(inner->exps, exp);
1585 : }
1586 : else
1587 53 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", tname, cname);
1588 : }
1589 : }
1590 :
1591 1 : if (!exp)
1592 66185 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42S22) "SELECT: no such column '%s.%s'", tname, cname);
1593 1165133 : if (exp && inner && inner->card <= CARD_AGGR && exp->card > CARD_AGGR && (is_sql_sel(f) || is_sql_having(f)) && !is_sql_aggr(f))
1594 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", tname, cname);
1595 1165133 : if (exp && inner && is_groupby(inner->op) && !is_sql_aggr(f) && !is_freevar(exp))
1596 5655 : exp = rel_groupby_add_aggr(sql, inner, exp);
1597 0 : } else if (dlist_length(l) > 3) {
1598 0 : return sql_error(sql, 02, SQLSTATE(42000) "cross-database references are not implemented");
1599 : }
1600 2268102 : if (exp && !exp_is_atom(exp) && rel && !outer) {
1601 2138960 : if (query->last_exp && query->last_rel == *rel && !is_sql_aggr(query->last_state) && is_sql_aggr(f)) {
1602 52 : if (!is_groupby(query->last_rel->op) || list_empty(query->last_rel->r) || !exps_find_exp(query->last_rel->r, query->last_exp)) {
1603 31 : if (exp_relname(query->last_exp) && exp_name(query->last_exp) && !has_label(query->last_exp))
1604 31 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", exp_relname(query->last_exp), exp_name(query->last_exp));
1605 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1606 : }
1607 : }
1608 2138929 : query->prev = query->last_exp;
1609 2138929 : query->last_exp = exp;
1610 2138929 : query->last_state = f;
1611 2138929 : query->last_rel = *rel;
1612 : }
1613 : return exp;
1614 : }
1615 :
1616 : int
1617 975453 : rel_convert_types(mvc *sql, sql_rel *ll, sql_rel *rr, sql_exp **L, sql_exp **R, int scale_fixing, check_type tpe)
1618 : {
1619 975453 : sql_exp *ls = *L;
1620 975453 : sql_exp *rs = *R;
1621 975453 : sql_subtype *lt = exp_subtype(ls);
1622 975453 : sql_subtype *rt = exp_subtype(rs);
1623 :
1624 975453 : if (!rt && !lt) {
1625 2 : sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) on both sides of an expression");
1626 2 : return -1;
1627 : }
1628 975451 : if (rt && (!lt || !lt->type))
1629 7 : return rel_set_type_param(sql, rt, ll, ls, 0);
1630 975444 : if (lt && (!rt || !rt->type))
1631 648 : return rel_set_type_param(sql, lt, rr, rs, 0);
1632 :
1633 974796 : if (rt && lt) {
1634 974796 : sql_subtype *i = lt;
1635 974796 : sql_subtype *r = rt;
1636 :
1637 974796 : if (subtype_cmp(lt, rt) != 0 || (tpe == type_equal_no_any && (lt->type->localtype==0 || rt->type->localtype==0))) {
1638 267929 : sql_subtype super;
1639 :
1640 267929 : cmp_supertype(&super, r, i);
1641 267929 : if (scale_fixing) {
1642 : /* convert ls to super type */
1643 267929 : ls = exp_check_type(sql, &super, ll, ls, tpe);
1644 : /* convert rs to super type */
1645 267929 : rs = exp_check_type(sql, &super, rr, rs, tpe);
1646 : } else {
1647 : /* convert ls to super type */
1648 0 : super.scale = lt->scale;
1649 0 : ls = exp_check_type(sql, &super, ll, ls, tpe);
1650 : /* convert rs to super type */
1651 0 : super.scale = rt->scale;
1652 0 : rs = exp_check_type(sql, &super, rr, rs, tpe);
1653 : }
1654 : }
1655 974796 : *L = ls;
1656 974796 : *R = rs;
1657 974796 : if (!ls || !rs)
1658 : return -1;
1659 : return 0;
1660 : }
1661 : return -1;
1662 : }
1663 :
1664 : static sql_rel *
1665 108202 : push_select_exp(mvc *sql, sql_rel *rel, sql_exp *e, sql_exp *ls, int f)
1666 : {
1667 108202 : if (is_outerjoin(rel->op)) {
1668 1178 : if ((is_left(rel->op) || is_full(rel->op)) && rel_find_exp(rel->l, ls)) {
1669 38 : rel_join_add_exp(sql->sa, rel, e);
1670 38 : return rel;
1671 1140 : } else if ((is_right(rel->op) || is_full(rel->op)) && rel_find_exp(rel->r, ls)) {
1672 5 : rel_join_add_exp(sql->sa, rel, e);
1673 5 : return rel;
1674 : }
1675 1135 : if (is_left(rel->op) && rel_find_exp(rel->r, ls)) {
1676 1109 : rel->r = rel_push_select(sql, rel->r, ls, e, f);
1677 1109 : return rel;
1678 26 : } else if (is_right(rel->op) && rel_find_exp(rel->l, ls)) {
1679 11 : rel->l = rel_push_select(sql, rel->l, ls, e, f);
1680 11 : return rel;
1681 : }
1682 : }
1683 : /* push select into the given relation */
1684 107039 : return rel_push_select(sql, rel, ls, e, f);
1685 : }
1686 :
1687 : static sql_rel *
1688 204486 : push_join_exp(mvc *sql, sql_rel *rel, sql_exp *e, sql_exp *L, sql_exp *R, sql_exp *R2, int f)
1689 : {
1690 204486 : sql_rel *r;
1691 204486 : if (/*is_semi(rel->op) ||*/ (is_outerjoin(rel->op) && !is_processed((rel)))) {
1692 21985 : rel_join_add_exp(sql->sa, rel, e);
1693 21985 : return rel;
1694 : }
1695 : /* push join into the given relation */
1696 182501 : if ((r = rel_push_join(sql, rel, L, R, R2, e, f)) != NULL)
1697 : return r;
1698 0 : rel_join_add_exp(sql->sa, rel, e);
1699 0 : return rel;
1700 : }
1701 :
1702 : static sql_rel *
1703 3351 : rel_select_push_filter_exp_down(mvc *sql, sql_rel *rel, sql_exp *e, list *l, list *r, int ff)
1704 : {
1705 3351 : sql_exp *ll, *rr;
1706 3351 : if (exps_card(r) <= CARD_ATOM && (exps_are_atoms(r) || exps_have_freevar(sql, r) || exps_have_freevar(sql, l))) {
1707 3255 : if (exps_card(l) == exps_card(r) || rel->processed) /* bin compare op */
1708 98 : return rel_select(sql->sa, rel, e);
1709 3157 : if ((ll = exps_find_one_multi_exp(l)))
1710 3157 : return push_select_exp(sql, rel, e, ll, ff);
1711 96 : } else if ((ll = exps_find_one_multi_exp(l)) && (rr = exps_find_one_multi_exp(r))) { /* join */
1712 57 : return push_join_exp(sql, rel, e, ll, rr, NULL, ff);
1713 : }
1714 39 : if (is_outerjoin(rel->op))
1715 3 : return rel_select(sql->sa, rel, e);
1716 36 : return rel_select_add_exp(sql->sa, rel, e);
1717 : }
1718 :
1719 : static sql_rel *
1720 3350 : rel_filter(mvc *sql, sql_rel *rel, list *l, list *r, char *sname, char *filter_op, int anti, int ff)
1721 : {
1722 3350 : node *n;
1723 3350 : sql_exp *e = NULL;
1724 3350 : sql_subfunc *f = NULL;
1725 3350 : list *tl = sa_list(sql->sa);
1726 3350 : bool found = false;
1727 :
1728 6700 : for (n = l->h; n; n = n->next){
1729 3350 : sql_exp *e = n->data;
1730 :
1731 3350 : list_append(tl, exp_subtype(e));
1732 : }
1733 13323 : for (n = r->h; n; n = n->next){
1734 9973 : sql_exp *e = n->data;
1735 :
1736 9973 : list_append(tl, exp_subtype(e));
1737 : }
1738 : /* find filter function */
1739 3350 : f = bind_func_(sql, sname, filter_op, tl, F_FILT, false, &found, false);
1740 3350 : if (f) {
1741 3348 : node *n,*m = f->func->ops->h;
1742 3348 : list *nexps = sa_list(sql->sa);
1743 :
1744 6696 : for(n=l->h; m && n; m = m->next, n = n->next) {
1745 3348 : sql_arg *a = m->data;
1746 3348 : sql_exp *e = n->data;
1747 :
1748 3348 : e = exp_check_type(sql, &a->type, rel, e, type_equal);
1749 3348 : if (!e)
1750 : return NULL;
1751 3348 : list_append(nexps, e);
1752 : }
1753 3348 : l = nexps;
1754 3348 : nexps = sa_list(sql->sa);
1755 13313 : for(n=r->h; m && n; m = m->next, n = n->next) {
1756 9965 : sql_arg *a = m->data;
1757 9965 : sql_exp *e = n->data;
1758 :
1759 9965 : e = exp_check_type(sql, &a->type, rel, e, type_equal);
1760 9965 : if (!e)
1761 : return NULL;
1762 9965 : list_append(nexps, e);
1763 : }
1764 : r = nexps;
1765 : }
1766 3350 : if (!f)
1767 4 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s FILTER function %s%s%s'%s'",
1768 2 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", filter_op);
1769 3348 : e = exp_filter(sql->sa, l, r, f, anti);
1770 :
1771 3348 : if (exps_one_is_rel(l) || exps_one_is_rel(r)) /* uncorrelated subquery case */
1772 9 : return rel_select(sql->sa, rel, e);
1773 : /* atom or row => select */
1774 6678 : for (node *n=l->h; n; n = n->next) {
1775 3339 : sql_exp *ls = n->data;
1776 :
1777 3339 : if (ls->card > rel->card) {
1778 0 : if (exp_name(ls) && !has_label(ls))
1779 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(ls));
1780 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1781 : }
1782 : }
1783 13277 : for (node *n=r->h; n; n = n->next) {
1784 9938 : sql_exp *rs = n->data;
1785 :
1786 9938 : if (rs->card > rel->card) {
1787 0 : if (exp_name(rs) && !has_label(rs))
1788 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(rs));
1789 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1790 : }
1791 : }
1792 3339 : return rel_select_push_filter_exp_down(sql, rel, e, l, r, ff);
1793 : }
1794 :
1795 : static sql_rel *
1796 3290 : rel_filter_exp_(mvc *sql, sql_rel *rel, sql_exp *ls, sql_exp *r1, sql_exp *r2, sql_exp *r3, char *filter_op, int anti, int f)
1797 : {
1798 3290 : list *l = sa_list(sql->sa);
1799 3290 : list *r = sa_list(sql->sa);
1800 :
1801 3290 : list_append(l, ls);
1802 3290 : list_append(r, r1);
1803 3290 : if (r2)
1804 3290 : list_append(r, r2);
1805 3290 : if (r3)
1806 3290 : list_append(r, r3);
1807 3290 : return rel_filter(sql, rel, l, r, "sys", filter_op, anti, f);
1808 : }
1809 :
1810 : static sql_rel *
1811 377530 : rel_select_push_compare_exp_down(mvc *sql, sql_rel *rel, sql_exp *e, sql_exp *ls, sql_exp *rs, sql_exp *rs2, int f)
1812 : {
1813 377530 : if (!is_join(rel->op) && !is_select(rel->op))
1814 85629 : return rel_select(sql->sa, rel, e);
1815 379909 : if ((rs->card <= CARD_ATOM || (rs2 && ls->card <= CARD_ATOM)) &&
1816 176016 : (exp_is_atom(rs) || (rs2 && exp_is_atom(ls)) || exp_has_freevar(sql, rs) || exp_has_freevar(sql, ls)) &&
1817 485 : (!rs2 || (rs2->card <= CARD_ATOM && (exp_is_atom(rs2) || exp_has_freevar(sql, rs2))))) {
1818 87472 : if (ls->card == rs->card || (rs2 && (ls->card == rs2->card || rs->card == rs2->card)) || rel->processed) /* bin compare op */
1819 991 : return rel_select(sql->sa, rel, e);
1820 :
1821 86481 : return push_select_exp(sql, rel, e, ls, f);
1822 : } else { /* join */
1823 204429 : return push_join_exp(sql, rel, e, ls, rs, rs2, f);
1824 : }
1825 : return rel;
1826 : }
1827 :
1828 : static sql_rel *
1829 350818 : rel_compare_exp_(sql_query *query, sql_rel *rel, sql_exp *ls, sql_exp *rs, sql_exp *rs2, int type, int anti, int quantifier, int f, int symmetric, int is_semantics)
1830 : {
1831 350818 : mvc *sql = query->sql;
1832 350818 : sql_exp *e = NULL;
1833 :
1834 350818 : if (quantifier || exp_is_rel(ls) || exp_is_rel(rs) || (rs2 && exp_is_rel(rs2))) {
1835 3178 : if (rs2) {
1836 7 : e = exp_compare2(sql->sa, ls, rs, rs2, type, symmetric);
1837 7 : if (anti)
1838 0 : set_anti(e);
1839 : } else {
1840 3171 : assert(!symmetric);
1841 3171 : if (rel_convert_types(sql, rel, rel, &ls, &rs, 1, type_equal_no_any) < 0)
1842 : return NULL;
1843 3171 : e = exp_compare_func(sql, ls, rs, compare_func((comp_type)type, anti), quantifier);
1844 : }
1845 3178 : return rel_select(sql->sa, rel, e);
1846 347640 : } else if (!rs2) {
1847 344693 : assert(!symmetric);
1848 344693 : if (ls->card < rs->card) {
1849 12636 : sql_exp *swap = ls;
1850 12636 : ls = rs;
1851 12636 : rs = swap;
1852 12636 : type = (int)swap_compare((comp_type)type);
1853 : }
1854 344693 : if (rel_convert_types(sql, rel, rel, &ls, &rs, 1, type_equal_no_any) < 0)
1855 : return NULL;
1856 344690 : e = exp_compare(sql->sa, ls, rs, type);
1857 344690 : if (is_semantics) set_semantics(e);
1858 : } else {
1859 2947 : assert(rs2);
1860 2947 : if (rel_convert_types(sql, rel, rel, &ls, &rs, 1, type_equal_no_any) < 0)
1861 : return NULL;
1862 2947 : if (!(rs2 = exp_check_type(sql, exp_subtype(ls), rel, rs2, type_equal)))
1863 : return NULL;
1864 2947 : e = exp_compare2(sql->sa, ls, rs, rs2, type, symmetric);
1865 : }
1866 347637 : if (anti)
1867 847 : set_anti(e);
1868 :
1869 347637 : if (!rel)
1870 0 : return rel_select(sql->sa, rel_project_exp(sql, exp_atom_bool(sql->sa, 1)), e);
1871 :
1872 : /* atom or row => select */
1873 347637 : if (ls->card > rel->card || rs->card > rel->card || (rs2 && rs2->card > rel->card)) {
1874 0 : sql_exp *e = ls->card > rel->card ? ls : rs->card > rel->card ? rs : rs2;
1875 0 : if (exp_name(e) && !has_label(e))
1876 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(e));
1877 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1878 : }
1879 347637 : return rel_select_push_compare_exp_down(sql, rel, e, ls, rs, rs2, f);
1880 : }
1881 :
1882 : static sql_rel *
1883 347864 : rel_compare_exp(sql_query *query, sql_rel *rel, sql_exp *ls, sql_exp *rs, char *compare_op, int reduce, int quantifier, int need_not, int f, int is_semantics)
1884 : {
1885 347864 : mvc *sql = query->sql;
1886 347864 : comp_type type = cmp_equal;
1887 :
1888 347864 : if (!ls || !rs)
1889 : return NULL;
1890 :
1891 347864 : if (!quantifier && ((!rel && !query_has_outer(query)) || !reduce)) {
1892 : /* TODO to handle filters here */
1893 0 : sql_exp *e;
1894 :
1895 0 : if (rel_convert_types(sql, rel, rel, &ls, &rs, 1, type_equal_no_any) < 0)
1896 : return NULL;
1897 0 : e = rel_binop_(sql, rel, ls, rs, "sys", compare_op, card_value, true);
1898 :
1899 0 : if (!e)
1900 : return NULL;
1901 0 : if (!reduce) {
1902 0 : if (rel->op == op_project) {
1903 0 : append(rel->exps, e);
1904 : } else {
1905 0 : list *exps = new_exp_list(sql->sa);
1906 :
1907 0 : append(exps, e);
1908 0 : return rel_project(sql->sa, rel, exps);
1909 : }
1910 : } else {
1911 0 : return rel_select(sql->sa, rel, e);
1912 : }
1913 : }
1914 347864 : type = compare_str2type(compare_op);
1915 347864 : assert(type != cmp_filter);
1916 347864 : return rel_compare_exp_(query, rel, ls, rs, NULL, type, need_not, quantifier, f, 0, is_semantics);
1917 : }
1918 :
1919 : static sql_rel *
1920 347844 : rel_compare(sql_query *query, sql_rel *rel, symbol *sc, symbol *lo, symbol *ro, char *compare_op, int f, exp_kind k, int quantifier, int is_semantics)
1921 : {
1922 347844 : mvc *sql = query->sql;
1923 347844 : sql_exp *rs = NULL, *ls;
1924 347844 : comp_type cmp_type = compare_str2type(compare_op);
1925 347844 : exp_kind ek = {type_value, card_column, FALSE};
1926 347844 : int need_not = 0;
1927 :
1928 347844 : if ((quantifier == 1 && cmp_type == cmp_equal) ||
1929 347809 : (quantifier == 2 && cmp_type == cmp_notequal)) {
1930 63 : dnode *n = sc->data.lval->h;
1931 63 : dlist *dl = dlist_create(sql->sa);
1932 : /* map into IN/NOT IN */
1933 63 : sc->token = cmp_type==cmp_equal?SQL_IN:SQL_NOT_IN;
1934 63 : n->next->type = type_list;
1935 63 : n->next->data.lval = dl;
1936 63 : n->next->next->next = NULL; /* remove quantifier */
1937 63 : dl->h = n->next->next;
1938 63 : n->next->next = NULL; /* (remove comparison) moved righthand side */
1939 63 : return rel_logical_exp(query, rel, sc, f);
1940 : }
1941 : /* <> ANY -> NOT (= ALL) */
1942 347781 : if (quantifier == 1 && cmp_type == cmp_notequal) {
1943 5 : need_not = 1;
1944 5 : quantifier = 2;
1945 5 : cmp_type = cmp_equal;
1946 5 : compare_op = "=";
1947 : }
1948 :
1949 347781 : if ((lo->token == SQL_SELECT || lo->token == SQL_UNION || lo->token == SQL_EXCEPT || lo->token == SQL_INTERSECT || lo->token == SQL_VALUES) &&
1950 43 : (ro->token != SQL_SELECT && ro->token != SQL_UNION && ro->token != SQL_EXCEPT && ro->token != SQL_INTERSECT && ro->token != SQL_VALUES)) {
1951 30 : symbol *tmp = lo; /* swap subquery to the right hand side */
1952 :
1953 30 : lo = ro;
1954 30 : ro = tmp;
1955 :
1956 30 : if (compare_op[0] == '>')
1957 16 : compare_op[0] = '<';
1958 14 : else if (compare_op[0] == '<' && compare_op[1] != '>')
1959 1 : compare_op[0] = '>';
1960 30 : cmp_type = swap_compare(cmp_type);
1961 : }
1962 :
1963 347781 : ls = rel_value_exp(query, &rel, lo, f|sql_farg, ek);
1964 347781 : if (!ls)
1965 : return NULL;
1966 347732 : if (ls && rel && exp_has_freevar(sql, ls) && is_sql_sel(f))
1967 0 : ls = rel_project_add_exp(sql, rel, ls);
1968 347732 : if (quantifier)
1969 58 : ek.card = card_set;
1970 :
1971 347732 : rs = rel_value_exp(query, &rel, ro, f|sql_farg, ek);
1972 347732 : if (!rs)
1973 : return NULL;
1974 347704 : if (ls->card > rs->card && rs->card == CARD_AGGR && is_sql_having(f)) {
1975 0 : if (exp_name(ls) && exp_relname(ls) && !has_label(ls))
1976 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", exp_relname(ls), exp_name(ls));
1977 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1978 : }
1979 347704 : if (rs->card > ls->card && ls->card == CARD_AGGR && is_sql_having(f)) {
1980 0 : if (exp_name(rs) && exp_relname(rs) && !has_label(rs))
1981 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", exp_relname(rs), exp_name(rs));
1982 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
1983 : }
1984 347704 : return rel_compare_exp(query, rel, ls, rs, compare_op, k.reduce, quantifier, need_not, f, is_semantics);
1985 : }
1986 :
1987 : static sql_exp*
1988 78857 : _rel_nop(mvc *sql, char *sname, char *fname, list *tl, sql_rel *rel, list *exps, exp_kind ek)
1989 : {
1990 78857 : bool found = false;
1991 78857 : int table_func = (ek.card == card_relation);
1992 78857 : sql_ftype type = (ek.card == card_loader)?F_LOADER:((ek.card == card_none)?F_PROC:
1993 : ((ek.card == card_relation)?F_UNION:F_FUNC));
1994 :
1995 78857 : sql_subfunc *f = bind_func_(sql, sname, fname, tl, type, false, &found, false);
1996 78857 : if (f && !(exps = check_arguments_and_find_largest_any_type(sql, rel, exps, f, table_func, false)))
1997 : f = NULL;
1998 :
1999 78841 : if (f)
2000 78841 : return exp_op(sql->sa, exps, f);
2001 16 : char *arg_list = nary_function_arg_types_2str(sql, tl, list_length(tl));
2002 32 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s operator %s%s%s'%s'(%s)",
2003 16 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname, arg_list ? arg_list : "");
2004 : }
2005 :
2006 : static sql_exp *
2007 2050 : exp_exist(sql_query *query, sql_rel *rel, sql_exp *le, int exists)
2008 : {
2009 2050 : mvc *sql = query->sql;
2010 2050 : sql_subfunc *exists_func = NULL;
2011 2050 : sql_subtype *t;
2012 2050 : sql_exp *res;
2013 :
2014 2050 : if (!exp_name(le))
2015 753 : exp_label(sql->sa, le, ++sql->label);
2016 2050 : if (exp_is_rel(le)) { /* for the subquery case, propagate to the inner query */
2017 2050 : sql_rel *r = exp_rel_get_rel(sql->sa, le);
2018 2050 : if (is_project(r->op) && !list_empty(r->exps)) {
2019 5849 : for (node *n = r->exps->h; n; n = n->next)
2020 3799 : if (!exp_subtype(n->data) && rel_set_type_param(sql, sql_bind_localtype("bit"), r, n->data, 0) < 0) /* workaround */
2021 : return NULL;
2022 2050 : le->tpe = *exp_subtype(r->exps->h->data); /* just take the first expression type */
2023 : }
2024 0 : } else if (!exp_subtype(le) && rel_set_type_param(sql, sql_bind_localtype("bit"), rel, le, 0) < 0) /* workaround */
2025 : return NULL;
2026 2050 : t = exp_subtype(le);
2027 :
2028 2111 : if (!(exists_func = sql_bind_func(sql, "sys", exists ? "sql_exists" : "sql_not_exists", t, NULL, F_FUNC, true, true)))
2029 0 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "exist operator on type %s missing", t ? t->type->base.name : "unknown");
2030 2050 : res = exp_unop(sql->sa, le, exists_func);
2031 2050 : set_has_no_nil(res);
2032 2050 : return res;
2033 : }
2034 :
2035 : static sql_exp *
2036 1071 : rel_exists_value_exp(sql_query *query, sql_rel **rel, symbol *sc, int f)
2037 : {
2038 1071 : exp_kind ek = {type_value, card_exists, FALSE};
2039 1071 : sql_exp *le, *e;
2040 :
2041 1071 : le = rel_value_exp(query, rel, sc->data.sym, f|sql_farg, ek);
2042 1071 : if (!le)
2043 : return NULL;
2044 1070 : if (!(e = exp_exist(query, rel ? *rel : NULL, le, sc->token == SQL_EXISTS)))
2045 : return NULL;
2046 : /* only freevar should have CARD_AGGR */
2047 1070 : e->card = CARD_ATOM;
2048 1070 : return e;
2049 : }
2050 :
2051 : static sql_rel *
2052 986 : rel_exists_exp(sql_query *query, sql_rel *rel, symbol *sc, int f)
2053 : {
2054 986 : exp_kind ek = {type_value, card_exists, TRUE};
2055 986 : mvc *sql = query->sql;
2056 986 : sql_rel *sq = NULL;
2057 :
2058 986 : if (is_psm_call(f) || is_sql_merge(f))
2059 3 : return sql_error(sql, 02, SQLSTATE(42000) "%s: subqueries not supported inside %s", is_psm_call(f) ? "CALL" : "MERGE", is_psm_call(f) ? "CALL statements" : "MERGE conditions");
2060 985 : if (rel) {
2061 985 : query_processed(query);
2062 985 : query_push_outer(query, rel, f);
2063 : }
2064 985 : sq = rel_subquery(query, sc->data.sym, ek);
2065 985 : if (rel)
2066 985 : rel = query_pop_outer(query);
2067 985 : assert(!is_sql_sel(f));
2068 985 : if (sq) {
2069 980 : sql_exp *e = exp_rel(sql, sq);
2070 980 : if (!(e = exp_exist(query, rel, e, sc->token == SQL_EXISTS)))
2071 : return NULL;
2072 : /* only freevar should have CARD_AGGR */
2073 980 : e->card = CARD_ATOM;
2074 980 : rel = rel_select_add_exp(sql->sa, rel, e);
2075 980 : return rel;
2076 : }
2077 : return NULL;
2078 : }
2079 :
2080 : static int
2081 7007 : is_project_true(sql_rel *r)
2082 : {
2083 7007 : if (r && !r->l && list_length(r->exps) == 1) {
2084 82 : sql_exp *e = r->exps->h->data;
2085 82 : if (exp_is_atom(e) && exp_is_true(e))
2086 : return 1;
2087 : }
2088 : return 0;
2089 : }
2090 :
2091 : static sql_exp *
2092 62223 : rel_in_value_exp(sql_query *query, sql_rel **rel, symbol *sc, int f)
2093 : {
2094 62223 : mvc *sql = query->sql;
2095 62223 : exp_kind ek = {type_value, card_column, TRUE};
2096 62223 : dlist *dl = sc->data.lval;
2097 62223 : symbol *lo = NULL;
2098 62223 : dnode *n = dl->h->next, *dn = NULL;
2099 62223 : sql_exp *le = NULL, *re, *e = NULL;
2100 62223 : list *ll = sa_list(sql->sa);
2101 62223 : int is_tuple = 0, add_select = 0;
2102 :
2103 : /* complex case */
2104 62223 : if (dl->h->type == type_list) { /* (a,b..) in (.. ) */
2105 4107 : dn = dl->h->data.lval->h;
2106 4107 : lo = dn->data.sym;
2107 4107 : dn = dn->next;
2108 : } else {
2109 58116 : lo = dl->h->data.sym;
2110 : }
2111 196963 : for( ; lo; lo = dn?dn->data.sym:NULL, dn = dn?dn->next:NULL ) {
2112 67374 : le = rel_value_exp(query, rel, lo, f|sql_farg, ek);
2113 67374 : if (!le)
2114 : return NULL;
2115 67370 : append(ll, le);
2116 : }
2117 62219 : if (list_length(ll) == 1) {
2118 58112 : le = ll->h->data;
2119 58112 : ek.card = card_set;
2120 : } else {
2121 4107 : le = exp_values(sql->sa, ll);
2122 4107 : exp_label(sql->sa, le, ++sql->label);
2123 4107 : ek.type = list_length(ll);
2124 4107 : is_tuple = list_length(ll);
2125 : }
2126 : /* list of values or subqueries */
2127 : /* 3 right hand side cases,
2128 : * 1 - value/tuple list of atoms
2129 : * 2 - list of scalar sub queries (needs check on 1 row/column per query)
2130 : * 3 - single tabular ie. multi column, multi row query
2131 : */
2132 62219 : if (n->type == type_list) {
2133 62219 : sql_exp *values;
2134 62219 : list *vals = sa_list(sql->sa);
2135 :
2136 62219 : n = dl->h->next;
2137 62219 : n = n->data.lval->h;
2138 :
2139 308783 : for (; n; n = n->next) {
2140 246596 : if (n->type == type_list) {
2141 3 : dnode *m = n->data.lval->h;
2142 3 : list *rl = sa_list(sql->sa);
2143 12 : for (; m; m = m->next) {
2144 6 : assert(m->type == type_symbol);
2145 6 : sql_exp *re = rel_value_exp(query, rel, m->data.sym, f|sql_farg, ek);
2146 6 : if (!re)
2147 : return NULL;
2148 6 : append(rl, re);
2149 : }
2150 3 : re = exp_values(sql->sa, rl);
2151 : } else {
2152 246593 : assert(n->type == type_symbol);
2153 246593 : re = rel_value_exp(query, rel, n->data.sym, f|sql_farg, ek);
2154 : }
2155 246596 : if (!re)
2156 : return NULL;
2157 246573 : if (is_tuple && (!exp_is_rel(re) && !is_values(re)))
2158 0 : return sql_error(sql, 02, SQLSTATE(42000) "Cannot match a tuple to a single value");
2159 8206 : if (is_tuple && exp_is_rel(re)) {
2160 4106 : sql_rel *r = exp_rel_get_rel(sql->sa, re);
2161 :
2162 4106 : if (!r)
2163 0 : return sql_error(sql, 02, SQLSTATE(42000) "Subquery missing");
2164 4106 : if (r->nrcols != ek.type)
2165 12 : return sql_error(sql, 02, SQLSTATE(42000) "Subquery has too %s columns", (r->nrcols < ek.type) ? "few" : "many");
2166 4097 : re = exp_rel_label(sql, re);
2167 242467 : } else if (exp_is_rel(re)) {
2168 7008 : sql_rel *r = exp_rel_get_rel(sql->sa, re);
2169 7008 : add_select = 1;
2170 7008 : if (rel && *rel && is_join((*rel)->op))
2171 2933 : set_dependent((*rel));
2172 7008 : if (is_project(r->op) && is_project_true(r->l) && list_length(r->exps) == 1)
2173 80 : re = r->exps->h->data;
2174 235459 : } else if (is_values(re) && is_tuple != list_length(exp_get_values(re))) {
2175 0 : return sql_error(sql, 02, SQLSTATE(42000) "Tuple sizes do not match");
2176 : }
2177 246564 : append(vals, re);
2178 : }
2179 :
2180 62187 : if (list_empty(vals))
2181 0 : return sql_error(sql, 02, SQLSTATE(42000) "The list of values for IN operator cannot be empty");
2182 :
2183 62187 : values = exp_values(sql->sa, vals);
2184 62187 : exp_label(sql->sa, values, ++sql->label);
2185 62187 : if (is_tuple) {
2186 4098 : if (!(values = exp_tuples_set_supertype(sql, exp_get_values(le), values)))
2187 : return NULL;
2188 4098 : if (!(le->f = tuples_check_types(sql, exp_get_values(le), values)))
2189 : return NULL;
2190 : } else { /* if it's not a tuple, enforce coercion on the type for every element on the list */
2191 58089 : sql_subtype super, *le_tpe = exp_subtype(le), *values_tpe = NULL;
2192 :
2193 300552 : for (node *m = vals->h; m; m = m->next) { /* first get values supertype */
2194 242463 : sql_exp *e = m->data;
2195 242463 : sql_subtype *tpe = exp_subtype(e);
2196 :
2197 242463 : if (values_tpe && tpe) {
2198 184371 : cmp_supertype(&super, values_tpe, tpe);
2199 184371 : *values_tpe = super;
2200 58092 : } else if (!values_tpe && tpe) {
2201 58085 : super = *tpe;
2202 58085 : values_tpe = &super;
2203 : }
2204 : }
2205 58089 : if (!le_tpe)
2206 2 : le_tpe = values_tpe;
2207 58089 : if (!values_tpe)
2208 4 : values_tpe = le_tpe;
2209 58089 : if (!le_tpe || !values_tpe)
2210 1 : return sql_error(sql, 01, SQLSTATE(42000) "For the IN operator, both sides must have a type defined");
2211 58088 : cmp_supertype(&super, values_tpe, le_tpe); /* compute supertype */
2212 :
2213 : /* on selection/join cases we can generate cmp expressions instead of anyequal for trivial cases */
2214 58088 : if ((is_sql_where(f) || is_sql_having(f)) && !is_sql_farg(f) && !exp_has_rel(le) && exps_are_atoms(vals)) {
2215 23948 : if (list_length(vals) == 1) { /* use cmp_equal instead of cmp_in for 1 expression */
2216 115 : sql_exp *first = vals->h->data;
2217 115 : if (rel_convert_types(sql, rel ? *rel : NULL, rel ? *rel : NULL, &le, &first, 1, type_equal_no_any) < 0)
2218 0 : return NULL;
2219 140 : e = exp_compare(sql->sa, le, first, (sc->token == SQL_IN) ? cmp_equal : cmp_notequal);
2220 : } else { /* use cmp_in instead of anyequal for n simple expressions */
2221 120568 : for (node *n = vals->h ; n ; n = n->next)
2222 96735 : if ((n->data = exp_check_type(sql, &super, rel ? *rel : NULL, n->data, type_equal)) == NULL)
2223 : return NULL;
2224 23833 : if ((le = exp_check_type(sql, &super, rel ? *rel : NULL, le, type_equal)) == NULL)
2225 : return NULL;
2226 32423 : e = exp_in(sql->sa, le, vals, (sc->token == SQL_IN) ? cmp_in : cmp_notin);
2227 : }
2228 : }
2229 23948 : if (!e) { /* after computing supertype, check types for each IN value */
2230 179752 : for (node *n = vals->h ; n ; n = n->next)
2231 145612 : if ((n->data = exp_check_type(sql, &super, rel ? *rel : NULL, n->data, type_equal)) == NULL)
2232 : return NULL;
2233 34140 : values->tpe = *exp_subtype(vals->h->data);
2234 34140 : if (!(le = exp_check_type(sql, &super, rel ? *rel : NULL, le, type_equal)))
2235 : return NULL;
2236 : }
2237 : }
2238 58088 : if (!e) {
2239 38238 : if (add_select && rel && *rel && !is_project((*rel)->op) && !is_select((*rel)->op) && !is_base((*rel)->op))
2240 2932 : *rel = rel_select(sql->sa, *rel, NULL);
2241 38238 : if ((rel && *rel) || exp_has_rel(le) || exp_has_rel(values))
2242 32676 : e = exp_in_func(sql, le, values, (sc->token == SQL_IN), is_tuple);
2243 : else
2244 5562 : e = exp_in_aggr(sql, le, values, (sc->token == SQL_IN), is_tuple);
2245 : }
2246 : }
2247 : return e;
2248 : }
2249 :
2250 : static sql_rel *
2251 32521 : rel_in_exp(sql_query *query, sql_rel *rel, symbol *sc, int f)
2252 : {
2253 32521 : mvc *sql = query->sql;
2254 32521 : sql_exp *e = rel_in_value_exp(query, &rel, sc, f);
2255 :
2256 32521 : assert(!is_sql_sel(f));
2257 32521 : if (!e || !rel)
2258 : return NULL;
2259 :
2260 32497 : if (e->type == e_cmp) { /* it's a exp_in or cmp_equal of simple expressions, push down early on if possible */
2261 23946 : sql_exp *ls = e->l;
2262 23946 : bool rlist = (e->flag == cmp_in || e->flag == cmp_notin);
2263 23946 : unsigned int rcard = rlist ? exps_card(e->r) : exp_card(e->r);
2264 23946 : int r_is_atoms = rlist ? exps_are_atoms(e->r) : exp_is_atom(e->r);
2265 23946 : int r_has_freevar = rlist ? exps_have_freevar(sql, e->r) : exp_has_freevar(sql, e->r);
2266 :
2267 23946 : if (rcard <= CARD_ATOM && (r_is_atoms || r_has_freevar || exp_has_freevar(sql, ls))) {
2268 23946 : if ((exp_card(ls) == rcard) || rel->processed) /* bin compare op */
2269 5382 : return rel_select(sql->sa, rel, e);
2270 :
2271 18564 : return push_select_exp(sql, rel, e, ls, f);
2272 : } else { /* join */
2273 0 : sql_exp *rs = rlist ? exps_find_one_multi_exp(e->r) : e->r;
2274 0 : if (rs)
2275 0 : return push_join_exp(sql, rel, e, ls, rs, NULL, f);
2276 : }
2277 : }
2278 8551 : if (is_outerjoin(rel->op))
2279 13 : return rel_select(sql->sa, rel, e);
2280 8538 : return rel_select_add_exp(sql->sa, rel, e);
2281 : }
2282 :
2283 : static bool
2284 52569 : not_symbol_can_be_propagated(mvc *sql, symbol *sc)
2285 : {
2286 52569 : switch (sc->token) {
2287 : case SQL_IN:
2288 : case SQL_NOT_IN:
2289 : case SQL_EXISTS:
2290 : case SQL_NOT_EXISTS:
2291 : case SQL_LIKE:
2292 : case SQL_NOT_LIKE:
2293 : case SQL_BETWEEN:
2294 : case SQL_NOT_BETWEEN:
2295 : case SQL_IS_NULL:
2296 : case SQL_IS_NOT_NULL:
2297 : case SQL_NOT:
2298 : case SQL_COMPARE:
2299 : return true;
2300 6822 : case SQL_AND:
2301 : case SQL_OR: {
2302 6822 : symbol *lo = sc->data.lval->h->data.sym;
2303 6822 : symbol *ro = sc->data.lval->h->next->data.sym;
2304 6826 : return not_symbol_can_be_propagated(sql, lo) && not_symbol_can_be_propagated(sql, ro);
2305 : }
2306 36501 : default:
2307 36501 : return false;
2308 : }
2309 : }
2310 :
2311 : /* Warning, this function assumes the entire bison tree can be negated, so call it after 'not_symbol_can_be_propagated' */
2312 : static symbol *
2313 16063 : negate_symbol_tree(mvc *sql, symbol *sc)
2314 : {
2315 16063 : switch (sc->token) {
2316 1454 : case SQL_IN:
2317 1454 : sc->token = SQL_NOT_IN;
2318 1454 : break;
2319 22 : case SQL_NOT_IN:
2320 22 : sc->token = SQL_IN;
2321 22 : break;
2322 0 : case SQL_EXISTS:
2323 0 : sc->token = SQL_NOT_EXISTS;
2324 0 : break;
2325 0 : case SQL_NOT_EXISTS:
2326 0 : sc->token = SQL_EXISTS;
2327 0 : break;
2328 7 : case SQL_LIKE:
2329 7 : sc->token = SQL_NOT_LIKE;
2330 7 : break;
2331 0 : case SQL_NOT_LIKE:
2332 0 : sc->token = SQL_LIKE;
2333 0 : break;
2334 17 : case SQL_BETWEEN:
2335 17 : sc->token = SQL_NOT_BETWEEN;
2336 17 : break;
2337 11 : case SQL_NOT_BETWEEN:
2338 11 : sc->token = SQL_BETWEEN;
2339 11 : break;
2340 32 : case SQL_IS_NULL:
2341 32 : sc->token = SQL_IS_NOT_NULL;
2342 32 : break;
2343 15 : case SQL_IS_NOT_NULL:
2344 15 : sc->token = SQL_IS_NULL;
2345 15 : break;
2346 27 : case SQL_NOT: { /* nested NOTs eliminate each other */
2347 27 : if (sc->data.sym->token == SQL_ATOM) {
2348 5 : AtomNode *an = (AtomNode*) sc->data.sym;
2349 5 : sc = newAtomNode(sql->sa, an->a);
2350 22 : } else if (sc->data.sym->token == SQL_SELECT) {
2351 2 : SelectNode *sn = (SelectNode*) sc->data.sym;
2352 2 : sc = newSelectNode(sql->sa, sn->distinct, sn->selection, sn->into, sn->from, sn->where, sn->groupby, sn->having,
2353 : sn->orderby, sn->name, sn->limit, sn->offset, sn->sample, sn->seed, sn->window);
2354 : } else {
2355 20 : memmove(sc, sc->data.sym, sizeof(symbol));
2356 : }
2357 : } break;
2358 7660 : case SQL_COMPARE: {
2359 7660 : dnode *cmp_n = sc->data.lval->h;
2360 7660 : comp_type neg_cmp_type = negate_compare(compare_str2type(cmp_n->next->data.sval)); /* negate the comparator */
2361 7660 : if (cmp_n->next->next->next) {
2362 22 : switch(cmp_n->next->next->next->data.i_val)
2363 : {
2364 12 : case 0: /* negating ANY/ALL */
2365 12 : cmp_n->next->next->next->data.i_val = 1;
2366 12 : break;
2367 7 : case 1: /* negating ANY/ALL */
2368 7 : cmp_n->next->next->next->data.i_val = 0;
2369 7 : break;
2370 2 : case 2: /* negating IS [NOT] DINSTINCT FROM */
2371 2 : cmp_n->next->next->next->data.i_val = 3;
2372 2 : break;
2373 1 : case 3: /* negating IS [NOT] DINSTINCT FROM */
2374 1 : cmp_n->next->next->next->data.i_val = 2;
2375 1 : break;
2376 : }
2377 : }
2378 7660 : cmp_n->next->data.sval = sa_strdup(sql->sa, compare_func(neg_cmp_type, 0));
2379 7660 : } break;
2380 6818 : case SQL_AND:
2381 : case SQL_OR: {
2382 6818 : sc->data.lval->h->data.sym = negate_symbol_tree(sql, sc->data.lval->h->data.sym);
2383 6818 : sc->data.lval->h->next->data.sym= negate_symbol_tree(sql, sc->data.lval->h->next->data.sym);
2384 6818 : sc->token = sc->token == SQL_AND ? SQL_OR : SQL_AND;
2385 6818 : } break;
2386 : default:
2387 : break;
2388 : }
2389 16063 : return sc;
2390 : }
2391 :
2392 : static int
2393 3111 : exp_between_check_types(sql_subtype *res, sql_subtype *t1, sql_subtype *t2, sql_subtype *t3)
2394 : {
2395 3111 : bool type_found = false;
2396 3111 : sql_subtype super;
2397 :
2398 3111 : if (t1 && t2) {
2399 3105 : cmp_supertype(&super, t2, t1);
2400 3105 : type_found = true;
2401 6 : } else if (t1) {
2402 3 : super = *t1;
2403 3 : type_found = true;
2404 3 : } else if (t2) {
2405 1 : super = *t2;
2406 1 : type_found = true;
2407 : }
2408 3111 : if (t3) {
2409 3108 : if (type_found)
2410 3107 : cmp_supertype(&super, t3, &super);
2411 : else
2412 1 : super = *t3;
2413 : type_found = true;
2414 : }
2415 3 : if (!type_found)
2416 : return -1;
2417 3110 : *res = super;
2418 3110 : return 0;
2419 : }
2420 :
2421 : static bool
2422 116641 : exp_is_null_no_value_opt(sql_exp *e)
2423 : {
2424 116641 : if (!e)
2425 : return false;
2426 120555 : while (is_convert(e->type))
2427 3914 : e = e->l;
2428 233255 : return e->type == e_atom && e->l && atom_null(e->l);
2429 : }
2430 :
2431 : sql_exp *
2432 2535000 : rel_logical_value_exp(sql_query *query, sql_rel **rel, symbol *sc, int f, exp_kind ek)
2433 : {
2434 2535098 : mvc *sql = query->sql;
2435 :
2436 2535098 : if (!sc)
2437 : return NULL;
2438 :
2439 2535098 : if (mvc_highwater(sql))
2440 0 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
2441 :
2442 2535097 : switch (sc->token) {
2443 51511 : case SQL_OR:
2444 : case SQL_AND:
2445 : {
2446 51511 : symbol *lo = sc->data.lval->h->data.sym;
2447 51511 : symbol *ro = sc->data.lval->h->next->data.sym;
2448 51511 : sql_exp *ls, *rs;
2449 :
2450 51511 : if (!(ls = rel_value_exp(query, rel, lo, f|sql_farg, ek)))
2451 : return NULL;
2452 51511 : if (!(rs = rel_value_exp(query, rel, ro, f|sql_farg, ek)))
2453 : return NULL;
2454 90908 : return rel_binop_(sql, rel ? *rel : NULL, ls, rs, "sys", sc->token == SQL_OR ? "or": "and", card_value, false);
2455 : }
2456 5 : case SQL_FILTER:
2457 : /* [ x,..] filter [ y,..] */
2458 : /* todo add anti, [ x,..] not filter [ y,...] */
2459 : /* no correlation */
2460 : {
2461 5 : dnode *ln = sc->data.lval->h->data.lval->h;
2462 5 : dnode *rn = sc->data.lval->h->next->next->data.lval->h;
2463 5 : dlist *filter_op = sc->data.lval->h->next->data.lval;
2464 5 : char *fname = qname_schema_object(filter_op);
2465 5 : char *sname = qname_schema(filter_op);
2466 5 : list *exps, *tl;
2467 5 : sql_subtype *obj_type = NULL;
2468 :
2469 5 : exps = sa_list(sql->sa);
2470 5 : tl = sa_list(sql->sa);
2471 15 : for (; ln; ln = ln->next) {
2472 5 : symbol *sym = ln->data.sym;
2473 :
2474 5 : sql_exp *e = rel_value_exp(query, rel, sym, f|sql_farg, ek);
2475 5 : if (!e)
2476 : return NULL;
2477 5 : if (!obj_type)
2478 5 : obj_type = exp_subtype(e);
2479 5 : list_append(exps, e);
2480 5 : append(tl, exp_subtype(e));
2481 : }
2482 13 : for (; rn; rn = rn->next) {
2483 10 : symbol *sym = rn->data.sym;
2484 :
2485 10 : sql_exp *e = rel_value_exp(query, rel, sym, f|sql_farg, ek);
2486 10 : if (!e)
2487 : return NULL;
2488 8 : list_append(exps, e);
2489 8 : append(tl, exp_subtype(e));
2490 : }
2491 : /* find the predicate filter function */
2492 3 : return _rel_nop(sql, sname, fname, tl, rel ? *rel : NULL, exps, ek);
2493 : }
2494 116357 : case SQL_COMPARE:
2495 : {
2496 116357 : dnode *n = sc->data.lval->h;
2497 116357 : symbol *lo = n->data.sym;
2498 116357 : symbol *ro = n->next->next->data.sym;
2499 116357 : char *compare_op = n->next->data.sval;
2500 116357 : int quantifier = 0, need_not = 0;
2501 116357 : sql_exp *rs = NULL, *ls;
2502 116357 : comp_type cmp_type = compare_str2type(compare_op);
2503 116357 : bool is_not_distinct_from = false;
2504 116357 : bool is_distinct_from = false;
2505 :
2506 : /*
2507 : * = ANY -> IN, <> ALL -> NOT( = ANY) -> NOT IN
2508 : * = ALL -> all(groupby(all, nil)), <> ANY -> NOT ( = ALL )
2509 : */
2510 116357 : if (n->next->next->next)
2511 256 : quantifier = n->next->next->next->data.i_val + 1;
2512 256 : assert(quantifier == 0 || quantifier == 1 || quantifier == 2 || quantifier == 3 || quantifier == 4);
2513 :
2514 : /* [NOT] DISTINCT FROM */
2515 116357 : if (quantifier == 3) {
2516 : is_not_distinct_from = true;
2517 : quantifier = 0;
2518 : }
2519 116344 : else if (quantifier == 4) {
2520 14 : is_distinct_from = true;
2521 14 : quantifier = 0;
2522 : }
2523 :
2524 116357 : if ((quantifier == 1 && cmp_type == cmp_equal) ||
2525 116291 : (quantifier == 2 && cmp_type == cmp_notequal)) {
2526 93 : dlist *dl = dlist_create(sql->sa);
2527 : /* map into IN/NOT IN */
2528 93 : sc->token = cmp_type==cmp_equal?SQL_IN:SQL_NOT_IN;
2529 93 : n->next->type = type_list;
2530 93 : n->next->data.lval = dl;
2531 93 : n->next->next->next = NULL; /* remove quantifier */
2532 93 : dl->h = n->next->next;
2533 93 : n->next->next = NULL; /* (remove comparison) moved righthand side */
2534 93 : return rel_logical_value_exp(query, rel, sc, f, ek);
2535 : }
2536 : /* <> ANY -> NOT (= ALL) */
2537 116264 : if (quantifier == 1 && cmp_type == cmp_notequal) {
2538 15 : need_not = 1;
2539 15 : quantifier = 2;
2540 15 : cmp_type = cmp_equal;
2541 15 : compare_op = "=";
2542 : }
2543 :
2544 116264 : ls = rel_value_exp(query, rel, lo, f|sql_farg, ek);
2545 116264 : if (!ls)
2546 : return NULL;
2547 116252 : if (quantifier)
2548 136 : ek.card = card_set;
2549 :
2550 116252 : rs = rel_value_exp(query, rel, ro, f|sql_farg, ek);
2551 116252 : if (!rs)
2552 : return NULL;
2553 :
2554 116242 : if (is_distinct_from || is_not_distinct_from) {
2555 27 : if (rel_convert_types(sql, rel ? *rel : NULL, rel ? *rel : NULL, &ls, &rs, 1, type_equal_no_any) < 0)
2556 : return NULL;
2557 41 : sql_exp* e = exp_compare(sql->sa, ls, rs, is_not_distinct_from?cmp_equal:cmp_notequal);
2558 27 : set_semantics(e);
2559 27 : return e;
2560 : }
2561 :
2562 116215 : if (rs->type == e_atom)
2563 104919 : quantifier = 0;
2564 :
2565 116215 : if (!exp_is_rel(ls) && !exp_is_rel(rs) && ls->card < rs->card) {
2566 14 : sql_exp *swap = ls; /* has to swap parameters like in the rel_logical_exp case */
2567 14 : ls = rs;
2568 14 : rs = swap;
2569 14 : cmp_type = swap_compare(cmp_type);
2570 : }
2571 :
2572 116215 : if (rel_convert_types(sql, rel ? *rel : NULL, rel ? *rel : NULL, &ls, &rs, 1, type_equal_no_any) < 0)
2573 : return NULL;
2574 116212 : if (exp_is_null_no_value_opt(ls) && exp_is_null_no_value_opt(rs))
2575 7 : return exp_atom(sql->sa, atom_general(sql->sa, sql_bind_localtype("bit"), NULL, 0));
2576 :
2577 116205 : return exp_compare_func(sql, ls, rs, compare_func(cmp_type, need_not), quantifier);
2578 : }
2579 : /* Set Member ship */
2580 29702 : case SQL_IN:
2581 : case SQL_NOT_IN:
2582 29702 : return rel_in_value_exp(query, rel, sc, f);
2583 1071 : case SQL_EXISTS:
2584 : case SQL_NOT_EXISTS:
2585 1071 : return rel_exists_value_exp(query, rel, sc, f);
2586 347 : case SQL_LIKE:
2587 : case SQL_NOT_LIKE:
2588 : {
2589 347 : symbol *lo = sc->data.lval->h->data.sym;
2590 347 : symbol *ro = sc->data.lval->h->next->data.sym;
2591 347 : int insensitive = sc->data.lval->h->next->next->data.i_val;
2592 347 : int anti = (sc->token == SQL_NOT_LIKE) != (sc->data.lval->h->next->next->next->data.i_val != 0);
2593 347 : sql_subtype *st = sql_bind_localtype("str");
2594 347 : sql_exp *le = rel_value_exp(query, rel, lo, f|sql_farg, ek), *re, *ee = NULL, *ie = exp_atom_bool(sql->sa, insensitive);
2595 :
2596 347 : if (!le)
2597 : return NULL;
2598 :
2599 347 : if (!exp_subtype(le))
2600 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: parameter not allowed on "
2601 : "left hand side of LIKE operator");
2602 :
2603 347 : lo = ro->data.lval->h->data.sym;
2604 : /* like uses a single string pattern */
2605 347 : ek.card = card_value;
2606 347 : re = rel_value_exp(query, rel, lo, f|sql_farg, ek);
2607 347 : if (!re)
2608 : return NULL;
2609 343 : if ((re = exp_check_type(sql, st, rel ? *rel : NULL, re, type_equal)) == NULL)
2610 0 : return sql_error(sql, 02, SQLSTATE(42000) "LIKE: wrong type, should be string");
2611 343 : if ((le = exp_check_type(sql, st, rel ? *rel : NULL, le, type_equal)) == NULL)
2612 0 : return sql_error(sql, 02, SQLSTATE(42000) "LIKE: wrong type, should be string");
2613 : /* Do we need to escape ? */
2614 343 : if (dlist_length(ro->data.lval) == 2) {
2615 63 : char *escape = ro->data.lval->h->next->data.sval;
2616 63 : ee = exp_atom(sql->sa, atom_string(sql->sa, st, sa_strdup(sql->sa, escape)));
2617 : } else {
2618 280 : ee = exp_atom(sql->sa, atom_string(sql->sa, st, sa_strdup(sql->sa, "")));
2619 : }
2620 573 : return rel_nop_(sql, rel ? *rel : NULL, le, re, ee, ie, "sys", anti ? "not_like" : "like", card_value);
2621 : }
2622 164 : case SQL_BETWEEN:
2623 : case SQL_NOT_BETWEEN:
2624 : {
2625 164 : symbol *lo = sc->data.lval->h->data.sym;
2626 164 : int symmetric = sc->data.lval->h->next->data.i_val;
2627 164 : symbol *ro1 = sc->data.lval->h->next->next->data.sym;
2628 164 : symbol *ro2 = sc->data.lval->h->next->next->next->data.sym;
2629 164 : sql_exp *le, *re1, *re2;
2630 164 : sql_subtype super;
2631 :
2632 164 : assert(sc->data.lval->h->next->type == type_int);
2633 :
2634 164 : if (!(le = rel_value_exp(query, rel, lo, f|sql_farg, ek)))
2635 : return NULL;
2636 163 : if (!(re1 = rel_value_exp(query, rel, ro1, f|sql_farg, ek)))
2637 : return NULL;
2638 160 : if (!(re2 = rel_value_exp(query, rel, ro2, f|sql_farg, ek)))
2639 : return NULL;
2640 :
2641 155 : if (exp_between_check_types(&super, exp_subtype(le), exp_subtype(re1), exp_subtype(re2)) < 0)
2642 0 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) on both sides of an expression");
2643 :
2644 155 : if ((le = exp_check_type(sql, &super, rel ? *rel:NULL, le, type_equal)) == NULL ||
2645 155 : (re1 = exp_check_type(sql, &super, rel ? *rel:NULL, re1, type_equal)) == NULL ||
2646 155 : (re2 = exp_check_type(sql, &super, rel ? *rel:NULL, re2, type_equal)) == NULL)
2647 0 : return NULL;
2648 :
2649 155 : le = exp_compare2(sql->sa, le, re1, re2, 3, symmetric);
2650 155 : if (sc->token == SQL_NOT_BETWEEN)
2651 56 : set_anti(le);
2652 : return le;
2653 : }
2654 16276 : case SQL_IS_NULL:
2655 : case SQL_IS_NOT_NULL:
2656 : /* is (NOT) NULL */
2657 : {
2658 16276 : sql_exp *le = rel_value_exp(query, rel, sc->data.sym, f|sql_farg, ek);
2659 :
2660 16276 : if (!le)
2661 : return NULL;
2662 20526 : le = rel_unop_(sql, rel ? *rel : NULL, le, "sys", sc->token == SQL_IS_NULL ? "isnull" : "isnotnull", card_value);
2663 16273 : if (!le)
2664 : return NULL;
2665 16273 : set_has_no_nil(le);
2666 16273 : return le;
2667 : }
2668 18890 : case SQL_NOT: {
2669 18890 : if (not_symbol_can_be_propagated(sql, sc->data.sym)) {
2670 98 : sc->data.sym = negate_symbol_tree(sql, sc->data.sym);
2671 98 : return rel_logical_value_exp(query, rel, sc->data.sym, f, ek);
2672 : }
2673 18792 : sql_exp *le = rel_value_exp(query, rel, sc->data.sym, f|sql_farg, ek);
2674 :
2675 18792 : if (!le)
2676 : return NULL;
2677 18791 : return rel_unop_(sql, rel ? *rel : NULL, le, "sys", "not", card_value);
2678 : }
2679 : case SQL_ATOM: {
2680 2279879 : AtomNode *an = (AtomNode *) sc;
2681 2279879 : assert(an && an->a);
2682 2279879 : return exp_atom(sql->sa, an->a);
2683 : }
2684 20378 : case SQL_IDENT:
2685 : case SQL_COLUMN:
2686 20378 : return rel_column_ref(query, rel, sc, f);
2687 201 : case SQL_UNION:
2688 : case SQL_EXCEPT:
2689 : case SQL_INTERSECT: {
2690 201 : sql_rel *sq;
2691 :
2692 201 : if (is_psm_call(f) || is_sql_merge(f))
2693 4 : return sql_error(sql, 02, SQLSTATE(42000) "%s: subqueries not supported inside %s", is_psm_call(f) ? "CALL" : "MERGE", is_psm_call(f) ? "CALL statements" : "MERGE conditions");
2694 199 : if (rel && *rel)
2695 141 : query_push_outer(query, *rel, f);
2696 199 : sq = rel_setquery(query, sc);
2697 199 : if (rel && *rel) {
2698 141 : *rel = query_pop_outer(query);
2699 141 : if (is_sql_join(f) && is_groupby((*rel)->op)) {
2700 0 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in JOIN conditions");
2701 141 : } else if (is_sql_where(f) && is_groupby((*rel)->op)) {
2702 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in WHERE clause");
2703 141 : } else if ((is_sql_update_set(f) || is_sql_psm(f)) && is_groupby((*rel)->op)) {
2704 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses");
2705 : }
2706 : }
2707 199 : if (!sq)
2708 : return NULL;
2709 197 : if (ek.type == type_value && ek.card <= card_set && is_project(sq->op) && list_length(sq->exps) > 1)
2710 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery must return only one column");
2711 196 : if (ek.type == type_relation && is_project(sq->op) && list_length(sq->exps) != ek.type)
2712 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery has too %s columns", list_length(sq->exps) < ek.type ? "few" : "many");
2713 302 : if (ek.type == type_value && ek.card < card_set && sq->card >= CARD_AGGR && (is_sql_sel(f) | is_sql_having(f) | is_sql_farg(f) |
2714 106 : ( is_sql_where(f) && rel && (!*rel || is_basetable((*rel)->op) || is_simple_project((*rel)->op) || is_joinop((*rel)->op)))))
2715 106 : sq = rel_zero_or_one(sql, sq, ek);
2716 196 : return exp_rel(sql, sq);
2717 : }
2718 1 : case SQL_DEFAULT:
2719 1 : return sql_error(sql, 02, SQLSTATE(42000) "DEFAULT keyword not allowed outside insert and update statements");
2720 315 : default: {
2721 315 : sql_exp *le = rel_value_exp(query, rel, sc, f|sql_farg, ek);
2722 315 : sql_subtype bt;
2723 :
2724 315 : if (!le)
2725 : return NULL;
2726 313 : sql_find_subtype(&bt, "boolean", 0, 0);
2727 313 : if ((le = exp_check_type(sql, &bt, rel ? *rel : NULL, le, type_equal)) == NULL)
2728 : return NULL;
2729 313 : return rel_binop_(sql, rel ? *rel : NULL, le, exp_atom_bool(sql->sa, 1), "sys", "=", 0, true);
2730 : }
2731 : }
2732 : /* never reached, as all switch cases have a `return` */
2733 : }
2734 :
2735 : sql_rel *
2736 629838 : rel_logical_exp(sql_query *query, sql_rel *rel, symbol *sc, int f)
2737 : {
2738 629838 : mvc *sql = query->sql;
2739 629838 : exp_kind ek = {type_value, card_column, TRUE};
2740 :
2741 629838 : if (!sc)
2742 : return NULL;
2743 :
2744 629838 : if (mvc_highwater(sql))
2745 0 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
2746 :
2747 629838 : switch (sc->token) {
2748 18945 : case SQL_OR:
2749 : {
2750 18945 : list *exps = NULL, *lexps = NULL, *rexps = NULL;
2751 18945 : symbol *lo = sc->data.lval->h->data.sym;
2752 18945 : symbol *ro = sc->data.lval->h->next->data.sym;
2753 18945 : sql_rel *lr, *rr;
2754 :
2755 18945 : if (!rel)
2756 : return NULL;
2757 :
2758 18945 : lr = rel;
2759 18945 : rr = rel_dup(lr);
2760 :
2761 18945 : if (is_outerjoin(rel->op) && !is_processed(rel)) {
2762 44 : exps = rel->exps;
2763 :
2764 44 : lr = rel_select_copy(sql->sa, lr, sa_list(sql->sa));
2765 44 : lr = rel_logical_exp(query, lr, lo, f | sql_or);
2766 44 : if (!lr)
2767 : return NULL;
2768 43 : query_processed(query);
2769 43 : rr = rel_select_copy(sql->sa, rr, sa_list(sql->sa));
2770 43 : rr = rel_logical_exp(query, rr, ro, f | sql_or);
2771 43 : if (!rr)
2772 : return NULL;
2773 42 : if (lr->l == rr->l) {
2774 42 : lexps = lr->exps;
2775 42 : lr = lr->l;
2776 42 : rexps = rr->exps;
2777 42 : rr = rr->l;
2778 : }
2779 42 : rel = NULL;
2780 : } else {
2781 18901 : lr = rel_logical_exp(query, lr, lo, f | sql_or);
2782 18901 : if (!lr)
2783 : return NULL;
2784 18899 : rr = rel_logical_exp(query, rr, ro, f | sql_or);
2785 : }
2786 :
2787 18941 : if (!lr || !rr)
2788 : return NULL;
2789 18941 : return rel_or(sql, rel, lr, rr, exps, lexps, rexps);
2790 : }
2791 190961 : case SQL_AND:
2792 : {
2793 190961 : symbol *lo = sc->data.lval->h->data.sym;
2794 190961 : symbol *ro = sc->data.lval->h->next->data.sym;
2795 190961 : rel = rel_logical_exp(query, rel, lo, f);
2796 190961 : if (!rel)
2797 : return NULL;
2798 190954 : return rel_logical_exp(query, rel, ro, f);
2799 : }
2800 60 : case SQL_FILTER:
2801 : /* [ x,..] filter [ y,..] */
2802 : /* todo add anti, [ x,..] NOT filter [ y,...] */
2803 : /* no correlation */
2804 : {
2805 60 : dnode *ln = sc->data.lval->h->data.lval->h;
2806 60 : dnode *rn = sc->data.lval->h->next->next->data.lval->h;
2807 60 : dlist *filter_op = sc->data.lval->h->next->data.lval;
2808 60 : char *fname = qname_schema_object(filter_op);
2809 60 : char *sname = qname_schema(filter_op);
2810 60 : list *l, *r;
2811 :
2812 60 : l = sa_list(sql->sa);
2813 60 : r = sa_list(sql->sa);
2814 180 : for (; ln; ln = ln->next) {
2815 60 : symbol *sym = ln->data.sym;
2816 :
2817 60 : sql_exp *e = rel_value_exp(query, &rel, sym, f|sql_farg, ek);
2818 60 : if (!e)
2819 : return NULL;
2820 60 : list_append(l, e);
2821 : }
2822 163 : for (; rn; rn = rn->next) {
2823 103 : symbol *sym = rn->data.sym;
2824 :
2825 103 : sql_exp *e = rel_value_exp(query, &rel, sym, f|sql_farg, ek);
2826 103 : if (!e)
2827 : return NULL;
2828 103 : list_append(r, e);
2829 : }
2830 60 : return rel_filter(sql, rel, l, r, sname, fname, 0, f);
2831 : }
2832 347844 : case SQL_COMPARE:
2833 : {
2834 347844 : dnode *n = sc->data.lval->h;
2835 347844 : symbol *lo = n->data.sym;
2836 347844 : symbol *ro = n->next->next->data.sym;
2837 347844 : char *compare_op = n->next->data.sval;
2838 347844 : int quantifier = 0;
2839 347844 : int is_semantics = 0;
2840 347844 : bool is_distinct_from = false;
2841 :
2842 347844 : if (n->next->next->next)
2843 131 : quantifier = n->next->next->next->data.i_val + 1;
2844 131 : assert(quantifier == 0 || quantifier == 1 || quantifier == 2 || quantifier == 3 || quantifier == 4);
2845 :
2846 347844 : if (quantifier >= 3) {
2847 10 : if (quantifier == 4) {
2848 6 : is_distinct_from = true;
2849 6 : compare_op = "<>";
2850 : }
2851 : quantifier = 0;
2852 : is_semantics = 1;
2853 : }
2854 347844 : if (is_distinct_from) {
2855 6 : sql_exp* ls = rel_value_exp(query, &rel, lo, f|sql_farg, ek);
2856 6 : if (!ls)
2857 : return NULL;
2858 6 : sql_exp* rs = rel_value_exp(query, &rel, ro, f|sql_farg, ek);
2859 6 : if (!rs)
2860 : return NULL;
2861 :
2862 6 : bool ls_is_non_null_atom = exp_is_atom(ls) && exp_is_not_null(ls);
2863 6 : bool rs_is_non_null_atom = exp_is_atom(rs) && exp_is_not_null(rs);
2864 :
2865 6 : if (ls_is_non_null_atom || rs_is_non_null_atom) {
2866 4 : sql_rel *r = rel_dup(rel);
2867 4 : sql_rel* l = rel_compare(query, rel, sc, lo, ro, compare_op, f | sql_or, ek, quantifier, 0);
2868 4 : if (!l)
2869 : return NULL;
2870 3 : sql_subtype *t;
2871 5 : if (!(t = exp_subtype(rs_is_non_null_atom?ls:rs)))
2872 0 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter for IS NULL operator");
2873 3 : sql_exp* e = exp_compare(sql->sa, rs_is_non_null_atom?ls:rs, exp_atom(sql->sa, atom_general(sql->sa, t, NULL, 0)), cmp_equal);
2874 3 : set_has_no_nil(e);
2875 3 : set_semantics(e);
2876 :
2877 3 : r = rel_select_push_compare_exp_down(sql, r, e, e->l, e->r, NULL, f | sql_or);
2878 3 : if (!r)
2879 : return NULL;
2880 3 : return rel_or(sql, rel, l, r, NULL, NULL, NULL);
2881 : }
2882 : }
2883 :
2884 : /* [NOT] DISTINCT FROM */
2885 347840 : return rel_compare(query, rel, sc, lo, ro, compare_op, f, ek, quantifier, is_semantics);
2886 : }
2887 : /* Set Member ship */
2888 32521 : case SQL_IN:
2889 : case SQL_NOT_IN:
2890 32521 : return rel_in_exp(query, rel, sc, f);
2891 986 : case SQL_EXISTS:
2892 : case SQL_NOT_EXISTS:
2893 986 : return rel_exists_exp(query, rel , sc, f);
2894 3293 : case SQL_LIKE:
2895 : case SQL_NOT_LIKE:
2896 : {
2897 3293 : symbol *lo = sc->data.lval->h->data.sym;
2898 3293 : symbol *ro = sc->data.lval->h->next->data.sym;
2899 3293 : int insensitive = sc->data.lval->h->next->next->data.i_val;
2900 3293 : int anti = (sc->token == SQL_NOT_LIKE) != (sc->data.lval->h->next->next->next->data.i_val != 0);
2901 3293 : sql_subtype *st = sql_bind_localtype("str");
2902 3293 : sql_exp *le = rel_value_exp(query, &rel, lo, f|sql_farg, ek), *re, *ee = NULL, *ie = exp_atom_bool(sql->sa, insensitive);
2903 :
2904 3293 : if (!le)
2905 : return NULL;
2906 :
2907 3291 : if (!exp_subtype(le))
2908 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: parameter not allowed on "
2909 : "left hand side of LIKE operator");
2910 :
2911 : /* Do we need to escape ? */
2912 3291 : if (dlist_length(ro->data.lval) == 2) {
2913 82 : char *escape = ro->data.lval->h->next->data.sval;
2914 82 : ee = exp_atom(sql->sa, atom_string(sql->sa, st, sa_strdup(sql->sa, escape)));
2915 : } else {
2916 3209 : ee = exp_atom(sql->sa, atom_string(sql->sa, st, sa_strdup(sql->sa, "")));
2917 : }
2918 3291 : ro = ro->data.lval->h->data.sym;
2919 3291 : re = rel_value_exp(query, &rel, ro, f|sql_farg, ek);
2920 3291 : if (!re)
2921 : return NULL;
2922 3290 : if ((re = exp_check_type(sql, st, rel, re, type_equal)) == NULL)
2923 0 : return sql_error(sql, 02, SQLSTATE(42000) "LIKE: wrong type, should be string");
2924 3290 : if ((le = exp_check_type(sql, st, rel, le, type_equal)) == NULL)
2925 0 : return sql_error(sql, 02, SQLSTATE(42000) "LIKE: wrong type, should be string");
2926 3290 : return rel_filter_exp_(sql, rel, le, re, ee, ie, "like", anti, f);
2927 : }
2928 2960 : case SQL_BETWEEN:
2929 : case SQL_NOT_BETWEEN:
2930 : {
2931 2960 : symbol *lo = sc->data.lval->h->data.sym;
2932 2960 : int symmetric = sc->data.lval->h->next->data.i_val;
2933 2960 : symbol *ro1 = sc->data.lval->h->next->next->data.sym;
2934 2960 : symbol *ro2 = sc->data.lval->h->next->next->next->data.sym;
2935 2960 : sql_exp *le, *re1, *re2;
2936 2960 : sql_subtype super;
2937 :
2938 2960 : assert(sc->data.lval->h->next->type == type_int);
2939 :
2940 2960 : if (!(le = rel_value_exp(query, &rel, lo, f|sql_farg, ek)))
2941 : return NULL;
2942 2958 : if (!(re1 = rel_value_exp(query, &rel, ro1, f|sql_farg, ek)))
2943 : return NULL;
2944 2956 : if (!(re2 = rel_value_exp(query, &rel, ro2, f|sql_farg, ek)))
2945 : return NULL;
2946 :
2947 2956 : if (exp_between_check_types(&super, exp_subtype(le), exp_subtype(re1), exp_subtype(re2)) < 0)
2948 1 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) on both sides of an expression");
2949 :
2950 2955 : if ((le = exp_check_type(sql, &super, rel, le, type_equal)) == NULL ||
2951 2955 : (re1 = exp_check_type(sql, &super, rel, re1, type_equal)) == NULL ||
2952 2955 : (re2 = exp_check_type(sql, &super, rel, re2, type_equal)) == NULL)
2953 1 : return NULL;
2954 :
2955 2954 : return rel_compare_exp_(query, rel, le, re1, re2, 3, sc->token == SQL_NOT_BETWEEN ? 1 : 0, 0, f, symmetric, 0);
2956 : }
2957 10558 : case SQL_IS_NULL:
2958 : case SQL_IS_NOT_NULL:
2959 : /* is (NOT) NULL */
2960 : {
2961 10558 : sql_exp *le = rel_value_exp(query, &rel, sc->data.sym, f|sql_farg, ek);
2962 10558 : sql_subtype *t;
2963 :
2964 10558 : if (!le)
2965 : return NULL;
2966 10554 : if (!(t = exp_subtype(le)))
2967 1 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) for IS%s NULL operator", sc->token == SQL_IS_NOT_NULL ? " NOT" : "");
2968 10553 : le = exp_compare(sql->sa, le, exp_atom(sql->sa, atom_general(sql->sa, t, NULL, 0)), cmp_equal);
2969 10553 : if (sc->token == SQL_IS_NOT_NULL)
2970 2561 : set_anti(le);
2971 10553 : set_has_no_nil(le);
2972 10553 : set_semantics(le);
2973 10553 : return rel_select_push_compare_exp_down(sql, rel, le, le->l, le->r, NULL, f);
2974 : }
2975 20038 : case SQL_NOT: {
2976 20038 : if (not_symbol_can_be_propagated(sql, sc->data.sym)) {
2977 2329 : sc->data.sym = negate_symbol_tree(sql, sc->data.sym);
2978 2329 : return rel_logical_exp(query, rel, sc->data.sym, f);
2979 : }
2980 17709 : sql_exp *le = rel_value_exp(query, &rel, sc->data.sym, f|sql_farg, ek);
2981 17709 : sql_subtype bt;
2982 :
2983 17709 : sql_find_subtype(&bt, "boolean", 0, 0);
2984 17709 : if (!le || !(le = exp_check_type(sql, &bt, rel, le, type_equal)))
2985 1 : return NULL;
2986 17708 : le = exp_compare(sql->sa, le, exp_atom_bool(sql->sa, 0), cmp_equal);
2987 17708 : return rel_select_push_compare_exp_down(sql, rel, le, le->l, le->r, NULL, f);
2988 : }
2989 626 : case SQL_ATOM: {
2990 : /* TRUE or FALSE */
2991 626 : sql_rel *or = rel;
2992 626 : AtomNode *an = (AtomNode *) sc;
2993 626 : sql_exp *e = exp_atom(sql->sa, an->a);
2994 :
2995 626 : if (e) {
2996 626 : sql_subtype bt;
2997 :
2998 626 : sql_find_subtype(&bt, "boolean", 0, 0);
2999 626 : e = exp_check_type(sql, &bt, rel, e, type_equal);
3000 : }
3001 626 : if (!e || or != rel)
3002 1 : return NULL;
3003 625 : e = exp_compare(sql->sa, e, exp_atom_bool(sql->sa, 1), cmp_equal);
3004 625 : return rel_select_push_compare_exp_down(sql, rel, e, e->l, e->r, NULL, f);
3005 : }
3006 708 : case SQL_IDENT:
3007 : case SQL_COLUMN: {
3008 708 : sql_rel *or = rel;
3009 708 : sql_exp *e = rel_column_ref(query, &rel, sc, f);
3010 :
3011 708 : if (e) {
3012 705 : sql_subtype bt;
3013 :
3014 705 : sql_find_subtype(&bt, "boolean", 0, 0);
3015 705 : e = exp_check_type(sql, &bt, rel, e, type_equal);
3016 : }
3017 705 : if (!e || or != rel)
3018 3 : return NULL;
3019 705 : e = exp_compare(sql->sa, e, exp_atom_bool(sql->sa, 1), cmp_equal);
3020 705 : return rel_select_push_compare_exp_down(sql, rel, e, e->l, e->r, NULL, f);
3021 : }
3022 12 : case SQL_UNION:
3023 : case SQL_EXCEPT:
3024 : case SQL_INTERSECT: {
3025 12 : sql_rel *sq;
3026 :
3027 12 : if (is_psm_call(f) || is_sql_merge(f))
3028 3 : return sql_error(sql, 02, SQLSTATE(42000) "%s: set operations not supported inside %s", is_psm_call(f) ? "CALL" : "MERGE", is_psm_call(f) ? "CALL statements" : "MERGE conditions");
3029 11 : if (rel)
3030 11 : query_push_outer(query, rel, f);
3031 11 : sq = rel_setquery(query, sc);
3032 11 : if (rel) {
3033 11 : rel = query_pop_outer(query);
3034 11 : if (is_sql_join(f) && is_groupby(rel->op)) {
3035 0 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in JOIN conditions");
3036 11 : } else if (is_sql_where(f) && is_groupby(rel->op)) {
3037 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in WHERE clause");
3038 11 : } else if ((is_sql_update_set(f) || is_sql_psm(f)) && is_groupby(rel->op)) {
3039 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses");
3040 : }
3041 : }
3042 11 : if (!sq)
3043 : return NULL;
3044 11 : assert(ek.type == type_value); /* I don't expect IN tuple matching calls to land here */
3045 11 : if (is_sql_where(f) && is_groupby(rel->op))
3046 0 : assert(0);
3047 11 : if (ek.card <= card_set && is_project(sq->op) && list_length(sq->exps) > 1)
3048 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery must return only one column");
3049 10 : if (!rel)
3050 : return sq;
3051 10 : sq = rel_zero_or_one(sql, sq, ek);
3052 10 : if (is_sql_where(f) || is_sql_having(f)) {
3053 10 : sql_exp *le = exp_rel(sql, sq);
3054 10 : sql_subtype bt;
3055 :
3056 10 : sql_find_subtype(&bt, "boolean", 0, 0);
3057 10 : le = exp_check_type(sql, &bt, rel, le, type_equal);
3058 10 : if (!le)
3059 : return NULL;
3060 10 : le = exp_compare(sql->sa, le, exp_atom_bool(sql->sa, 1), cmp_equal);
3061 10 : return rel_select_push_compare_exp_down(sql, rel, le, le->l, le->r, NULL, f);
3062 : } else {
3063 0 : sq = rel_crossproduct(sql->sa, rel, sq, (f==sql_sel || is_single(sq))?op_left:op_join);
3064 0 : set_processed(sq);
3065 : }
3066 0 : return sq;
3067 : }
3068 0 : case SQL_DEFAULT:
3069 0 : return sql_error(sql, 02, SQLSTATE(42000) "DEFAULT keyword not allowed outside insert and update statements");
3070 326 : default: {
3071 326 : sql_exp *le = rel_value_exp(query, &rel, sc, f|sql_farg, ek);
3072 326 : sql_subtype bt;
3073 :
3074 326 : if (!le)
3075 : return NULL;
3076 301 : if (le && (!is_compare(le->type) || le->flag > cmp_filter)) {
3077 288 : sql_find_subtype(&bt, "boolean", 0, 0);
3078 288 : if (!(le = exp_check_type(sql, &bt, rel, le, type_equal)))
3079 : return NULL;
3080 288 : le = exp_compare(sql->sa, le, exp_atom_bool(sql->sa, 1), cmp_equal);
3081 : }
3082 301 : if (le->flag == cmp_filter)
3083 12 : return rel_select_push_filter_exp_down(sql, rel, le, le->l, le->r, f);
3084 : else
3085 289 : return rel_select_push_compare_exp_down(sql, rel, le, le->l, le->r, le->f, f);
3086 : }
3087 : }
3088 : /* never reached, as all switch cases have a `return` */
3089 : }
3090 :
3091 : static sql_exp * _rel_aggr(sql_query *query, sql_rel **rel, int distinct, char *sname, char *aname, dnode *arguments, int f);
3092 : static sql_exp *rel_aggr(sql_query *query, sql_rel **rel, symbol *se, int f);
3093 :
3094 : static sql_exp *
3095 1826 : rel_op(sql_query *query, sql_rel **rel, symbol *se, int f, exp_kind ek )
3096 : {
3097 1826 : mvc *sql = query->sql;
3098 1826 : dnode *l = se->data.lval->h;
3099 1826 : char *fname = qname_schema_object(l->data.lval);
3100 1826 : char *sname = qname_schema(l->data.lval);
3101 :
3102 1826 : if (find_func(sql, sname, fname, 0, F_AGGR, false, NULL, NULL))
3103 0 : return _rel_aggr(query, rel, 0, sname, fname, NULL, f);
3104 1826 : sql->session->status = 0; /* if the function was not found clean the error */
3105 1826 : sql->errstr[0] = '\0';
3106 1826 : return rel_op_(sql, sname, fname, ek);
3107 : }
3108 :
3109 : sql_exp *
3110 94481 : rel_unop_(mvc *sql, sql_rel *rel, sql_exp *e, char *sname, char *fname, int card)
3111 : {
3112 94481 : bool found = false;
3113 94481 : sql_subtype *t = exp_subtype(e);
3114 94481 : sql_ftype type = (card == card_loader)?F_LOADER:((card == card_none)?F_PROC:
3115 : ((card == card_relation)?F_UNION:F_FUNC));
3116 :
3117 94481 : sql_subfunc *f = bind_func(sql, sname, fname, t, NULL, 1, type, false, &found, false);
3118 94481 : if (f && !f->func->vararg) {
3119 94410 : sql_arg *a = f->func->ops->h->data;
3120 94410 : t = &a->type;
3121 : }
3122 94481 : if (f && t && type_has_tz(t) && f->func->fix_scale == SCALE_FIX) {
3123 : /* set timezone (using msec (.3)) */
3124 0 : sql_subtype *intsec = sql_bind_subtype(sql->sa, "sec_interval", 10 /*hour to second */, 3);
3125 0 : atom *a = atom_int(sql->sa, intsec, sql->timezone);
3126 0 : sql_exp *tz = exp_atom(sql->sa, a);
3127 :
3128 0 : e = rel_binop_(sql, rel, e, tz, "sys", "sql_add", card, true);
3129 0 : if (!e)
3130 : return NULL;
3131 : }
3132 94459 : if (f) {
3133 94411 : if (check_card(card, f)) {
3134 94411 : list *args = list_append(sa_list(sql->sa), e);
3135 94411 : if (!f->func->vararg)
3136 188820 : args = check_arguments_and_find_largest_any_type(sql, rel, args, f, card == card_relation && e->card > CARD_ATOM, false);
3137 94411 : if (args)
3138 94411 : return exp_op(sql->sa, args, f);
3139 : }
3140 0 : found = false; /* reset found */
3141 0 : f = NULL;
3142 : }
3143 : /* reset error */
3144 70 : sql->session->status = 0;
3145 70 : sql->errstr[0] = '\0';
3146 209 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s unary operator %s%s%s'%s'(%s)",
3147 139 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname, t ? t->type->base.name : "?");
3148 : }
3149 :
3150 : static sql_exp *
3151 77585 : rel_unop(sql_query *query, sql_rel **rel, symbol *se, int f, exp_kind ek)
3152 : {
3153 77585 : mvc *sql = query->sql;
3154 77585 : dnode *l = se->data.lval->h;
3155 77585 : char *fname = qname_schema_object(l->data.lval);
3156 77585 : char *sname = qname_schema(l->data.lval);
3157 77585 : exp_kind iek = {type_value, card_column, FALSE};
3158 77585 : sql_exp *e = NULL;
3159 :
3160 77585 : if (find_func(sql, sname, fname, 1, F_AGGR, false, NULL, NULL))
3161 18935 : return rel_aggr(query, rel, se, f);
3162 :
3163 58650 : sql->session->status = 0; /* if the function was not found clean the error */
3164 58650 : sql->errstr[0] = '\0';
3165 58650 : if (!(e = rel_value_exp(query, rel, l->next->next->data.sym, f|sql_farg, iek)))
3166 : return NULL;
3167 58636 : return rel_unop_(sql, rel ? *rel : NULL, e, sname, fname, ek.card);
3168 : }
3169 :
3170 : sql_exp *
3171 522588 : rel_binop_(mvc *sql, sql_rel *rel, sql_exp *l, sql_exp *r, char *sname, char *fname, int card, bool exact)
3172 : {
3173 522588 : sql_subtype *t1 = exp_subtype(l), *t2 = exp_subtype(r);
3174 522588 : sql_ftype type = (card == card_loader)?F_LOADER:((card == card_none)?F_PROC:((card == card_relation)?F_UNION:F_FUNC));
3175 522588 : bool found = false;
3176 :
3177 522588 : if (card == card_loader)
3178 0 : card = card_none;
3179 :
3180 522588 : if (is_commutative(sname, fname) && l->card < r->card) { /* move constants to the right if possible */
3181 : sql_subtype *tmp = t1;
3182 522588 : t1 = t2;
3183 522588 : t2 = tmp;
3184 : sql_exp *res = l;
3185 522588 : l = r;
3186 522588 : r = res;
3187 : }
3188 : /* swap complex types (intervals) to left side of +, * */
3189 522588 : if (t1 && t2 && is_commutative(sname, fname)) {
3190 121289 : if ((EC_INTERVAL(t1->type->eclass) && EC_TEMP(t2->type->eclass)) ||
3191 121287 : ((!EC_TEMP(t1->type->eclass) && !EC_INTERVAL(t1->type->eclass)) && EC_INTERVAL(t2->type->eclass))) {
3192 : sql_subtype *tmp = t1;
3193 522588 : t1 = t2;
3194 522588 : t2 = tmp;
3195 : sql_exp *res = l;
3196 522588 : l = r;
3197 522588 : r = res;
3198 : }
3199 : }
3200 :
3201 522588 : sql_subfunc *f = bind_func(sql, sname, fname, t1, t2, 2, type, false, &found, exact);
3202 522588 : if (f && check_card(card,f)) {
3203 522426 : t1 = exp_subtype(l);
3204 522426 : t2 = exp_subtype(r);
3205 522426 : list *args = list_append(list_append(sa_list(sql->sa), l), r);
3206 522426 : if (!f->func->vararg)
3207 522425 : args = check_arguments_and_find_largest_any_type(sql, rel, args, f, 0, false);
3208 522426 : if (args)
3209 522424 : return exp_op(sql->sa, args, f);
3210 : return NULL;
3211 : }
3212 :
3213 162 : if (!exp_subtype(l) || !exp_subtype(r))
3214 0 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) on both sides of an expression");
3215 162 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s binary operator %s%s%s'%s'(%s,%s)",
3216 162 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname,
3217 162 : exp_subtype(l)->type->base.name, exp_subtype(r)->type->base.name);
3218 : }
3219 :
3220 : static sql_exp *
3221 373833 : rel_binop(sql_query *query, sql_rel **rel, symbol *se, int f, exp_kind ek)
3222 : {
3223 373833 : mvc *sql = query->sql;
3224 373833 : dnode *dl = se->data.lval->h;
3225 373833 : sql_exp *l, *r;
3226 373833 : char *fname = qname_schema_object(dl->data.lval);
3227 373833 : char *sname = qname_schema(dl->data.lval);
3228 373833 : exp_kind iek = {type_value, card_column, FALSE};
3229 :
3230 373833 : if (find_func(sql, sname, fname, 2, F_AGGR, false, NULL, NULL))
3231 4190 : return rel_aggr(query, rel, se, f);
3232 :
3233 369643 : sql->session->status = 0; /* if the function was not found clean the error */
3234 369643 : sql->errstr[0] = '\0';
3235 369643 : if (!(l = rel_value_exp(query, rel, dl->next->next->data.sym, f|sql_farg, iek)))
3236 : return NULL;
3237 369614 : if (!(r = rel_value_exp(query, rel, dl->next->next->next->data.sym, f|sql_farg, iek)))
3238 : return NULL;
3239 369575 : return rel_binop_(sql, rel ? *rel : NULL, l, r, sname, fname, ek.card, false);
3240 : }
3241 :
3242 : sql_exp *
3243 530 : rel_nop_(mvc *sql, sql_rel *rel, sql_exp *a1, sql_exp *a2, sql_exp *a3, sql_exp *a4, char *sname, char *fname, int card)
3244 : {
3245 530 : list *tl = sa_list(sql->sa);
3246 530 : sql_subfunc *f = NULL;
3247 530 : sql_ftype type = (card == card_none)?F_PROC:((card == card_relation)?F_UNION:F_FUNC);
3248 :
3249 : /* rel_nop_ should only be called for functions available to everyone, ie defined at sql_types! */
3250 530 : (void) rel;
3251 530 : append(tl, exp_subtype(a1));
3252 530 : append(tl, exp_subtype(a2));
3253 530 : append(tl, exp_subtype(a3));
3254 530 : if (a4)
3255 371 : append(tl, exp_subtype(a4));
3256 :
3257 530 : if (!(f = bind_func_(sql, sname, fname, tl, type, false, NULL, true)))
3258 : return NULL;
3259 530 : if (!a4)
3260 159 : return exp_op3(sql->sa, a1,a2,a3,f);
3261 371 : return exp_op4(sql->sa, a1,a2,a3,a4,f);
3262 : }
3263 :
3264 : static sql_func *
3265 3 : inplace_func(mvc *sql)
3266 : {
3267 3 : sql_func *f = SA_NEW(sql->sa, sql_func);
3268 :
3269 3 : *f = (sql_func) {
3270 : .mod = "",
3271 : .imp = "",
3272 : .type = F_PROC,
3273 : .lang = FUNC_LANG_INT,
3274 : .query = NULL,
3275 3 : .ops = sql->params,
3276 : .res = NULL,
3277 : };
3278 3 : base_init(sql->sa, &f->base, 0, true, NULL);
3279 3 : f->base.new = 1;
3280 3 : f->base.id = -1;
3281 3 : f->base.name = "-1";
3282 3 : f->instantiated = TRUE;
3283 3 : return f;
3284 : }
3285 :
3286 : static list *
3287 3 : reorder_args(mvc *sql, list *exps, list *names, list *params)
3288 : {
3289 3 : list *nexps = sa_list(sql->sa);
3290 8 : for(node *n = params->h; n; n = n->next) {
3291 5 : sql_arg *a = n->data;
3292 5 : int found =0;
3293 7 : for(node *m = names->h, *o = exps->h; m && o; m = m->next, o = o->next) {
3294 7 : if (strcmp(m->data, a->name) == 0) {
3295 5 : append(nexps, o->data);
3296 5 : found = 1;
3297 5 : break;
3298 : }
3299 : }
3300 5 : if (!found)
3301 : return NULL;
3302 : }
3303 : return nexps;
3304 : }
3305 :
3306 : static sql_exp *
3307 84769 : rel_nop(sql_query *query, sql_rel **rel, symbol *se, int fs, exp_kind ek)
3308 : {
3309 84769 : mvc *sql = query->sql;
3310 84769 : int nr_args = 0, err = 0;
3311 84769 : dnode *l = se->data.lval->h;
3312 84769 : dnode *ops = l->next->next->data.lval?l->next->next->data.lval->h:NULL;
3313 84769 : list *exps = sa_list(sql->sa), *tl = sa_list(sql->sa);
3314 84769 : exp_kind iek = {type_value, card_column, FALSE};
3315 84769 : char buf[ERRSIZE];
3316 84769 : int split = (l->type == type_int && l->data.i_val == -1);
3317 84769 : list *names = NULL;
3318 :
3319 3 : if (split)
3320 3 : names = sa_list(sql->sa);
3321 348674 : for (; ops; ops = ops->next, nr_args++) {
3322 263905 : if (!err) { /* we need the nr_args count at the end, but if an error is found, stop calling rel_value_exp */
3323 263883 : sql_exp *e = rel_value_exp(query, rel, ops->data.sym, fs|sql_farg, iek);
3324 263883 : if (!e) {
3325 6 : err = sql->session->status;
3326 6 : strcpy(buf, sql->errstr);
3327 6 : continue;
3328 : }
3329 263877 : if (split) {
3330 5 : ops = ops->next;
3331 5 : append(names, ops->data.sval);
3332 : }
3333 263877 : append(exps, e);
3334 263877 : append(tl, exp_subtype(e));
3335 : }
3336 : }
3337 84769 : if (l->type == type_int) {
3338 : /* exec nr (ops)*/
3339 5909 : int nr = l->data.i_val;
3340 5909 : cq *q = NULL;
3341 :
3342 5909 : if (err)
3343 : return NULL;
3344 5908 : if (nr == -1 || (q = qc_find(sql->qc, nr))) {
3345 5906 : list *nexps = new_exp_list(sql->sa);
3346 5906 : sql_func *f = q?q->f:inplace_func(sql);
3347 5906 : list *ops = q?f->ops:sql->params;
3348 :
3349 5906 : tl = sa_list(sql->sa);
3350 5906 : if (list_length(ops) != list_length(exps))
3351 3 : return sql_error(sql, 02, SQLSTATE(42000) "EXEC called with wrong number of arguments: expected %d, got %d", list_length(ops), list_length(exps));
3352 5903 : if (split) {
3353 3 : exps = reorder_args(sql, exps, names, ops);
3354 3 : if (!exps)
3355 0 : return sql_error(sql, 02, SQLSTATE(42000) "EXEC called with wrong arguments");
3356 : }
3357 5903 : if (exps->h && ops) {
3358 21927 : for (node *n = exps->h, *m = ops->h; n && m; n = n->next, m = m->next) {
3359 16115 : sql_arg *a = m->data;
3360 16115 : sql_exp *e = n->data;
3361 16115 : sql_subtype *ntp = &a->type;
3362 :
3363 16115 : if (ntp && ntp->type)
3364 16115 : e = exp_check_type(sql, ntp, NULL, e, type_equal);
3365 : else
3366 0 : a->type = *exp_subtype(e);
3367 16115 : if (!e) {
3368 1 : err = sql->session->status;
3369 1 : strcpy(buf, sql->errstr);
3370 1 : break;
3371 : }
3372 16114 : append(nexps, e);
3373 16114 : append(tl, exp_subtype(e));
3374 : }
3375 : }
3376 :
3377 5903 : if (err)
3378 : return NULL;
3379 5902 : if (q)
3380 5899 : sql->type = q->type;
3381 5992 : return exp_op(sql->sa, list_empty(nexps) ? NULL : nexps, sql_dup_subfunc(sql->sa, f, tl, NULL));
3382 : } else {
3383 2 : return sql_error(sql, 02, SQLSTATE(42000) "EXEC: PREPARED Statement missing '%d'", nr);
3384 : }
3385 : }
3386 78860 : char *fname = qname_schema_object(l->data.lval);
3387 78860 : char *sname = qname_schema(l->data.lval);
3388 :
3389 78860 : if (!sname && strcmp(fname, "field") == 0) { /* map into join */
3390 2 : if (err)
3391 2 : return NULL;
3392 1 : if (list_length(exps) < 2)
3393 1 : return sql_error(sql, 02, SQLSTATE(42000) "Field function called with not enough arguments");
3394 0 : sql_exp *le = exps->h->data;
3395 0 : set_freevar(le, 1);
3396 0 : list_remove_data(exps, NULL, le);
3397 0 : sql_exp *re = exp_values(sql->sa, exps);
3398 0 : exp_label(sql->sa, re, ++sql->label);
3399 0 : sql_rel *r = rel_project(sql->sa, NULL, append(sa_list(sql->sa), re));
3400 0 : sql_exp *id = NULL;
3401 0 : rel_add_identity(sql, r, &id);
3402 0 : re = exp_ref(sql, re);
3403 0 : id = exp_ref(sql, id);
3404 0 : if (r) {
3405 0 : r->nrcols = list_length(exps);
3406 0 : sql_exp *e = exp_compare(sql->sa, le, re, cmp_equal);
3407 0 : r = rel_select(sql->sa, r, e);
3408 0 : r = rel_project(sql->sa, r, append(sa_list(sql->sa), exp_convert(sql, id, exp_subtype(id), sql_bind_localtype("int"))));
3409 0 : re = exp_rel(sql, r);
3410 0 : return re;
3411 : }
3412 : }
3413 : /* first try aggregate */
3414 78858 : if (find_func(sql, sname, fname, nr_args, F_AGGR, false, NULL, NULL)) { /* We have to pass the arguments properly, so skip call to rel_aggr */
3415 : /* reset error */
3416 2 : sql->session->status = 0;
3417 2 : sql->errstr[0] = '\0';
3418 2 : return _rel_aggr(query, rel, l->next->data.i_val, sname, fname, l->next->next->data.lval->h, fs);
3419 : }
3420 78856 : if (err) {
3421 2 : sql->session->status = err;
3422 2 : strcpy(sql->errstr, buf);
3423 2 : return NULL;
3424 : }
3425 78854 : sql->session->status = 0; /* if the function was not found clean the error */
3426 78854 : sql->errstr[0] = '\0';
3427 78854 : return _rel_nop(sql, sname, fname, tl, rel ? *rel : NULL, exps, ek);
3428 : }
3429 :
3430 : typedef struct aggr_input {
3431 : sql_query *query;
3432 : int groupby;
3433 : char *err;
3434 : } aggr_input;
3435 :
3436 : static sql_exp *
3437 372 : exp_valid(visitor *v, sql_rel *rel, sql_exp *e, int depth)
3438 : {
3439 372 : aggr_input *ai = v->data;
3440 372 : (void)rel; (void)depth;
3441 :
3442 372 : int vf = is_freevar(e);
3443 372 : if (!v->changes && vf && vf < ai->groupby) { /* check need with outer query */
3444 14 : sql_rel *sq = query_fetch_outer(ai->query, vf-1);
3445 :
3446 : /* problem freevar have cardinality CARD_ATOM */
3447 14 : if (sq->card <= CARD_AGGR && exp_card(e) != CARD_AGGR && is_alias(e->type)) {
3448 4 : if (!exps_bind_column(sq->exps, e->l, e->r, NULL, 0)) {
3449 1 : v->changes = 1;
3450 1 : ai->err = SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query";
3451 : }
3452 : }
3453 358 : } else if (!v->changes && vf && vf == ai->groupby) { /* check if input is already aggregated */
3454 279 : sql_rel *sq = query_fetch_outer(ai->query, vf-1);
3455 279 : sql_exp *a = NULL;
3456 :
3457 279 : if (sq->card <= CARD_AGGR && is_alias(e->type)) {
3458 187 : if ((a = exps_bind_column(sq->exps, e->l, e->r, NULL, 0)) && is_aggr(a->type)) { /* aggregate */
3459 9 : v->changes = 1;
3460 9 : ai->err = SQLSTATE(42000) "SELECT: aggregate function calls cannot be nested";
3461 : }
3462 : }
3463 : }
3464 372 : return e;
3465 : }
3466 :
3467 : static char *
3468 272 : exps_valid(sql_query *query, list *exps, int groupby)
3469 : {
3470 272 : aggr_input ai = { .query = query, .groupby = groupby };
3471 272 : visitor v = { .sql = query->sql, .data = &ai };
3472 :
3473 272 : exps_exp_visitor_topdown(&v, NULL, exps, 0, &exp_valid, true);
3474 272 : if (v.changes)
3475 10 : return ai.err;
3476 : return NULL;
3477 : }
3478 :
3479 : static sql_exp *
3480 41967 : _rel_aggr(sql_query *query, sql_rel **rel, int distinct, char *sname, char *aname, dnode *args, int f)
3481 : {
3482 41967 : mvc *sql = query->sql;
3483 41967 : exp_kind ek = {type_value, card_column, FALSE};
3484 41967 : sql_subfunc *a = NULL;
3485 41967 : int no_nil = 0, group = 0, all_aggr = query_has_outer(query), i;
3486 41967 : unsigned int all_freevar = 0;
3487 41967 : sql_rel *groupby = rel ? *rel : NULL, *sel = NULL, *gr, *og = NULL, *res = groupby;
3488 41967 : sql_rel *subquery = NULL;
3489 41967 : list *exps = NULL, *ungrouped_cols = NULL;
3490 41967 : bool is_grouping = !strcmp(aname, "grouping"), has_args = false, found = false, used_rel = false;
3491 :
3492 41967 : if (!all_aggr) {
3493 27738 : if (!groupby) {
3494 4 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3495 4 : return sql_error(sql, 02, SQLSTATE(42000) "%s: missing group by", toUpperCopy(uaname, aname));
3496 27734 : } else if (is_sql_groupby(f)) {
3497 8 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3498 8 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate function '%s' not allowed in GROUP BY clause", toUpperCopy(uaname, aname), aname);
3499 27726 : } else if (is_sql_values(f)) {
3500 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3501 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed on an unique value", toUpperCopy(uaname, aname));
3502 27725 : } else if (is_sql_join(f)) { /* the is_sql_join test must come before is_sql_where, because the join conditions are handled with sql_where */
3503 3 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3504 3 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in JOIN conditions", toUpperCopy(uaname, aname));
3505 27722 : } else if (is_sql_where(f)) {
3506 4 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3507 4 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in WHERE clause", toUpperCopy(uaname, aname));
3508 27718 : } else if (is_sql_update_set(f) || is_sql_psm(f)) {
3509 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3510 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses (use subquery)", toUpperCopy(uaname, aname));
3511 27717 : } else if (is_sql_aggr(f)) {
3512 4 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3513 4 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions cannot be nested", toUpperCopy(uaname, aname));
3514 27713 : } else if (is_psm_call(f)) {
3515 0 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3516 0 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed inside CALL", toUpperCopy(uaname, aname));
3517 27713 : } else if (is_sql_from(f)) {
3518 0 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3519 0 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in functions in FROM", toUpperCopy(uaname, aname));
3520 : }
3521 : }
3522 :
3523 41942 : exps = sa_list(sql->sa);
3524 41942 : if (args && args->data.sym) {
3525 23217 : bool arguments_correlated = true, all_const = true;
3526 :
3527 23217 : all_freevar = all_aggr?1:0;
3528 50646 : for (i = 0; args && args->data.sym; args = args->next, i++) {
3529 27486 : int base = (!groupby || !is_project(groupby->op) || is_base(groupby->op) || is_processed(groupby));
3530 19624 : sql_rel *gl = base?groupby:groupby->l, *ogl = gl; /* handle case of subqueries without correlation */
3531 27486 : sql_exp *e = rel_value_exp(query, &gl, args->data.sym, (f | sql_aggr)& ~sql_farg, ek);
3532 27486 : bool found_one_freevar = false;
3533 :
3534 27486 : if (!e)
3535 57 : return NULL;
3536 27435 : used_rel |= (rel_has_exp(gl, e, true) == 0);
3537 27435 : has_args = true;
3538 27435 : if (gl && gl != ogl) {
3539 5 : if (gl->grouped) {
3540 5 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3541 5 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions cannot be nested", toUpperCopy(uaname, aname));
3542 : }
3543 0 : if (!base)
3544 0 : groupby->l = subquery = gl;
3545 : else
3546 : groupby = subquery = gl;
3547 : }
3548 27430 : sql_subtype *t = exp_subtype(e);
3549 27430 : if (!t) { /* we also do not expect parameters here */
3550 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3551 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: parameters not allowed as arguments to aggregate functions", toUpperCopy(uaname, aname));
3552 : }
3553 27429 : if (!t->type->localtype) {
3554 47 : if (e->type == e_atom && !e->f) {
3555 44 : t = sql_bind_localtype("bte");
3556 44 : e->tpe = *t;
3557 44 : if (e->l)
3558 44 : e->l = atom_set_type(sql->sa, e->l, t);
3559 : }
3560 : }
3561 :
3562 27429 : all_aggr &= (exp_card(e) <= CARD_AGGR && !exp_is_atom(e) && is_aggr(e->type) && !is_func(e->type) && (!groupby || !is_groupby(groupby->op) || !groupby->r || !exps_find_exp(groupby->r, e)));
3563 27429 : exp_only_freevar(query, e, &arguments_correlated, &found_one_freevar, &ungrouped_cols);
3564 27429 : all_freevar &= (arguments_correlated && found_one_freevar) || (is_atom(e->type)?all_freevar:0); /* no uncorrelated variables must be found, plus at least one correlated variable to push this aggregate to an outer query */
3565 27429 : all_const &= is_atom(e->type);
3566 27429 : list_append(exps, e);
3567 : }
3568 23160 : if (all_const)
3569 203 : all_freevar = 0;
3570 : }
3571 41885 : if (!all_freevar) {
3572 41593 : if (is_sql_groupby(f)) {
3573 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3574 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate function '%s' not allowed in GROUP BY clause", toUpperCopy(uaname, aname), aname);
3575 41592 : } else if (is_sql_from(f)) {
3576 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3577 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in functions in FROM", toUpperCopy(uaname, aname));
3578 41590 : } else if (is_sql_aggr(f) && groupby->grouped) {
3579 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3580 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions cannot be nested", toUpperCopy(uaname, aname));
3581 41588 : } else if (is_sql_values(f)) {
3582 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3583 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed on an unique value", toUpperCopy(uaname, aname));
3584 41587 : } else if (is_sql_join(f)) { /* the is_sql_join test must come before is_sql_where, because the join conditions are handled with sql_where */
3585 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3586 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in JOIN conditions", toUpperCopy(uaname, aname));
3587 41586 : } else if (is_sql_where(f)) {
3588 5 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3589 5 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in WHERE clause", toUpperCopy(uaname, aname));
3590 41581 : } else if (!all_aggr && !list_empty(ungrouped_cols)) {
3591 123 : for (node *n = ungrouped_cols->h ; n ; n = n->next) {
3592 66 : sql_rel *outer;
3593 66 : sql_exp *e = (sql_exp*) n->data;
3594 :
3595 66 : if ((outer = query_fetch_outer(query, is_freevar(e)-1))) {
3596 66 : int of = query_fetch_outer_state(query, is_freevar(e)-1);
3597 66 : if (outer->grouped) {
3598 24 : bool err = false, was_processed = false;
3599 :
3600 24 : if (is_processed(outer)) {
3601 5 : was_processed = true;
3602 5 : reset_processed(outer);
3603 : }
3604 24 : if (!is_groupby_col(outer, e))
3605 3 : err = true;
3606 24 : if (was_processed)
3607 5 : set_processed(outer);
3608 24 : if (err) {
3609 3 : if (exp_name(e) && exp_relname(e) && !has_label(e))
3610 3 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column \"%s.%s\" from outer query", exp_relname(e), exp_name(e));
3611 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
3612 : }
3613 42 : } else if (!used_rel && is_sql_where(of)) {
3614 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3615 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions not allowed in WHERE clause", toUpperCopy(uaname, aname));
3616 40 : } else if (!is_sql_aggr(of)) {
3617 36 : set_outer(outer);
3618 : }
3619 : }
3620 : }
3621 : }
3622 : }
3623 :
3624 41868 : if (all_freevar) { /* case 2, ie use outer */
3625 292 : int card;
3626 292 : sql_exp *exp = NULL;
3627 : /* find proper groupby relation */
3628 591 : for (node *n = exps->h; n; n = n->next) {
3629 299 : sql_exp *e = n->data;
3630 :
3631 299 : int vf = exp_freevar_offset(sql, e);
3632 299 : if (vf > (int)all_freevar)
3633 23 : all_freevar = vf;
3634 299 : exp = e;
3635 : }
3636 292 : if (query_has_outer(query) >= all_freevar) {
3637 292 : int sql_state = query_fetch_outer_state(query,all_freevar-1);
3638 292 : res = groupby = query_fetch_outer(query, all_freevar-1);
3639 292 : card = query_outer_used_card(query, all_freevar-1);
3640 : /* given groupby validate all input expressions */
3641 292 : char *err;
3642 292 : if (groupby && !is_groupby(groupby->op)) {
3643 111 : sql_exp *p = query_outer_last_used(query, all_freevar-1);
3644 111 : if (p && !is_aggr(p->type) && !is_groupby_col(groupby, p)) {
3645 20 : if (p->type == e_column)
3646 20 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", (char*)p->l, (char*)p->r);
3647 0 : if (exp_name(p) && exp_relname(p) && !has_label(p))
3648 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", exp_relname(p), exp_name(p));
3649 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
3650 : }
3651 : }
3652 272 : if ((err = exps_valid(query, exps, all_freevar)) != NULL) {
3653 10 : strcpy(sql->errstr, err);
3654 10 : sql->session->status = -ERR_GROUPBY;
3655 10 : return NULL;
3656 : }
3657 262 : if (exp && !is_groupby_col(res, exp)) {
3658 191 : if (is_sql_groupby(sql_state))
3659 2 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate function '%s' not allowed in GROUP BY clause", aname);
3660 189 : if (is_sql_aggr(sql_state) && groupby->grouped) {
3661 3 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3662 3 : return sql_error(sql, 02, SQLSTATE(42000) "%s: aggregate functions cannot be nested", toUpperCopy(uaname, aname));
3663 : }
3664 186 : if (is_sql_values(sql_state))
3665 0 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed on an unique value");
3666 186 : if (is_sql_update_set(sql_state) || is_sql_psm(f))
3667 2 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses");
3668 184 : if (is_sql_join(sql_state))
3669 4 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in JOIN conditions");
3670 180 : if (is_sql_where(sql_state))
3671 3 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in WHERE clause");
3672 177 : if (is_psm_call(sql_state))
3673 0 : return sql_error(sql, 05, SQLSTATE(42000) "CALL: aggregate functions not allowed inside CALL");
3674 177 : if (is_sql_from(sql_state))
3675 0 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in functions in FROM");
3676 177 : if (card > CARD_AGGR) { /* used an expression before on the non grouped relation */
3677 0 : sql_exp *lu = query_outer_last_used(query, all_freevar-1);
3678 0 : if (lu->type == e_column)
3679 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column \"%s.%s\" from outer query", (char*)lu->l, (char*)lu->r);
3680 0 : if (exp_name(lu) && exp_relname(lu) && !has_label(lu))
3681 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column \"%s.%s\" from outer query", exp_relname(lu), exp_name(lu));
3682 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
3683 : }
3684 177 : if (is_outer(groupby))
3685 2 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
3686 : }
3687 : } else {
3688 : all_freevar = 0;
3689 : }
3690 41576 : } else if (!subquery && groupby && is_outer(groupby) && !is_groupby(groupby->op))
3691 1 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: subquery uses ungrouped column from outer query");
3692 :
3693 : /* find having select */
3694 41821 : if (!subquery && groupby && !is_processed(groupby) && is_sql_having(f)) {
3695 104 : og = groupby;
3696 104 : while(!is_processed(groupby) && !is_base(groupby->op)) {
3697 59 : if (is_select(groupby->op) || !groupby->l)
3698 : break;
3699 : if (groupby->l)
3700 : groupby = groupby->l;
3701 : }
3702 63 : if (groupby && is_select(groupby->op) && !is_processed(groupby)) {
3703 18 : group = 1;
3704 18 : sel = groupby;
3705 : /* At the end we switch back to the old projection relation og.
3706 : * During the partitioning and ordering we add the expressions to the intermediate relations. */
3707 : }
3708 18 : if (!sel)
3709 : groupby = og;
3710 18 : if (sel && sel->l)
3711 18 : groupby = sel->l;
3712 : }
3713 :
3714 : /* find groupby */
3715 41821 : if (!subquery && groupby && !is_processed(groupby) && !is_base(groupby->op)) {
3716 27489 : og = groupby;
3717 27489 : groupby = rel_find_groupby(groupby);
3718 27489 : if (groupby)
3719 : group = 1;
3720 : else
3721 : groupby = og;
3722 : }
3723 :
3724 7790 : if (!groupby && exps_card(exps) > CARD_ATOM) {
3725 0 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3726 0 : return sql_error(sql, 02, SQLSTATE(42000) "%s: missing group by", toUpperCopy(uaname, aname));
3727 : }
3728 :
3729 41821 : if (!subquery && groupby && groupby->op != op_groupby) { /* implicit groupby */
3730 20392 : if (!all_freevar && query->last_exp && !is_sql_aggr(query->last_state)) {
3731 9 : if (exp_relname(query->last_exp) && exp_name(query->last_exp) && !has_label(query->last_exp))
3732 9 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s.%s' in query results without an aggregate function", exp_relname(query->last_exp), exp_name(query->last_exp));
3733 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
3734 : }
3735 20383 : res = groupby = rel_groupby(sql, groupby, NULL);
3736 : }
3737 41812 : if (subquery) {
3738 0 : assert(!all_freevar);
3739 0 : res = groupby;
3740 0 : if (is_sql_sel(f) && is_left(subquery->op) && !is_groupby(groupby->op)) {
3741 0 : res = groupby = rel_groupby(sql, groupby, NULL);
3742 0 : exps_set_freevar(sql, exps, groupby); /* mark free variables */
3743 0 : } else if (!is_groupby(groupby->op)) {
3744 0 : res = groupby = rel_groupby(sql, groupby, NULL);
3745 : }
3746 0 : assert(!is_base(groupby->op));
3747 : }
3748 41812 : if ((!exps || exps_card(exps) > CARD_ATOM) && (!res || !groupby))
3749 : return NULL;
3750 :
3751 41812 : if (all_freevar) {
3752 246 : query_update_outer(query, res, all_freevar-1);
3753 41566 : } else if (rel) {
3754 41566 : *rel = res;
3755 41566 : if (query->last_rel != res) {
3756 37636 : query->last_rel = res;
3757 37636 : query->last_state |= sql_aggr;
3758 : }
3759 : }
3760 :
3761 41812 : if (!has_args) { /* count(*) case */
3762 18721 : sql_exp *e;
3763 :
3764 18721 : if (strcmp(aname, "count") != 0) {
3765 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3766 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: unable to perform '%s(*)'", toUpperCopy(uaname, aname), aname);
3767 : }
3768 18719 : a = sql_bind_func(sql, "sys", aname, sql_bind_localtype("void"), NULL, F_AGGR, true, true);
3769 18719 : e = exp_aggr(sql->sa, NULL, a, distinct, 0, groupby?groupby->card:CARD_ATOM, 0);
3770 :
3771 18719 : if (!groupby)
3772 : return e;
3773 18719 : if (all_freevar)
3774 0 : query_outer_used_exp(query, all_freevar-1, e, sql_aggr);
3775 18719 : e = rel_groupby_add_aggr(sql, groupby, e);
3776 18719 : if (!group && !all_freevar)
3777 : return e;
3778 3202 : if (all_freevar) {
3779 0 : assert(!is_simple_project(res->op));
3780 0 : e->card = CARD_ATOM;
3781 0 : set_freevar(e, all_freevar-1);
3782 0 : return e;
3783 : }
3784 : return e;
3785 : }
3786 :
3787 : /* use cnt as nils shouldn't be counted */
3788 23091 : no_nil = 1;
3789 :
3790 23091 : gr = groupby;
3791 23091 : if (gr && gr->op == op_project && gr->l)
3792 : gr = gr->l;
3793 :
3794 23091 : if (is_grouping) {
3795 109 : sql_subtype *tpe;
3796 109 : list *l = (list*) groupby->r;
3797 :
3798 109 : if (list_length(l) <= 7)
3799 107 : tpe = sql_bind_localtype("bte");
3800 2 : else if (list_length(l) <= 15)
3801 2 : tpe = sql_bind_localtype("sht");
3802 0 : else if (list_length(l) <= 31)
3803 0 : tpe = sql_bind_localtype("int");
3804 0 : else if (list_length(l) <= 63)
3805 0 : tpe = sql_bind_localtype("lng");
3806 : #ifdef HAVE_HGE
3807 0 : else if (list_length(l) <= 127)
3808 0 : tpe = sql_bind_localtype("hge");
3809 : #endif
3810 : else
3811 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: GROUPING the number of grouping columns is larger"
3812 : " than the maximum number of representable bits from this server (%d > %d)", list_length(l),
3813 : #ifdef HAVE_HGE
3814 : 127
3815 : #else
3816 : 63
3817 : #endif
3818 : );
3819 109 : a = sql_bind_func_result(sql, sname, aname, F_AGGR, true, tpe, 1, exp_subtype(exps->h->data));
3820 : } else
3821 22982 : a = sql_bind_func_(sql, sname, aname, exp_types(sql->sa, exps), F_AGGR, false, false);
3822 :
3823 23091 : if (a) {
3824 23086 : found = true;
3825 23086 : if (!execute_priv(sql, a->func))
3826 0 : a = NULL;
3827 23086 : if (!is_grouping && a && !(exps = check_arguments_and_find_largest_any_type(sql, rel ? *rel : NULL, exps, a, 0, false)))
3828 0 : a = NULL;
3829 : }
3830 :
3831 23091 : if (a) {
3832 23086 : bool hasnil = have_nil(exps) || (strcmp(aname, "count") != 0 && (!groupby || list_empty(groupby->r))); /* for global case, the aggregate may return NULL */
3833 23086 : sql_exp *e = exp_aggr(sql->sa, exps, a, distinct, no_nil, groupby?groupby->card:CARD_ATOM, hasnil);
3834 :
3835 23086 : if (!groupby)
3836 : return e;
3837 23086 : if (all_freevar)
3838 246 : query_outer_aggregated(query, all_freevar-1, e);
3839 23086 : e = rel_groupby_add_aggr(sql, groupby, e);
3840 23086 : if (!group && !all_freevar)
3841 : return e;
3842 16610 : if (all_freevar) {
3843 246 : rel_bind_vars(sql, groupby->l, exps);
3844 246 : assert(!is_simple_project(res->op));
3845 246 : e->card = CARD_ATOM;
3846 246 : set_freevar(e, all_freevar-1);
3847 246 : return e;
3848 : }
3849 : return e;
3850 : }
3851 5 : const char *type = "unknown";
3852 5 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
3853 :
3854 5 : if (!list_empty(exps)) {
3855 5 : sql_exp *e = exps->h->data;
3856 5 : type = exp_subtype(e)->type->base.name;
3857 : }
3858 15 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "%s: %s aggregate %s%s%s'%s'(%s)", toUpperCopy(uaname, aname), found ? "insufficient privileges for" : "no such",
3859 : sname ? "'":"", sname ? sname : "", sname ? "'.":"", aname, type);
3860 : }
3861 :
3862 : static sql_exp *
3863 41965 : rel_aggr(sql_query *query, sql_rel **rel, symbol *se, int f)
3864 : {
3865 41965 : dlist *l = se->data.lval;
3866 41965 : dnode *d = l->h->next->next;
3867 41965 : int distinct = l->h->next->data.i_val;
3868 41965 : char *aname = qname_schema_object(l->h->data.lval);
3869 41965 : char *sname = qname_schema(l->h->data.lval);
3870 :
3871 41965 : return _rel_aggr(query, rel, distinct, sname, aname, d, f);
3872 : }
3873 :
3874 : static sql_exp *
3875 100621 : rel_case(sql_query *query, sql_rel **rel, symbol *opt_cond, dlist *when_search_list, symbol *opt_else, int f)
3876 : {
3877 100621 : mvc *sql = query->sql;
3878 100621 : sql_subtype *tpe = NULL;
3879 100621 : list *conds = new_exp_list(sql->sa), *results = new_exp_list(sql->sa);
3880 100621 : sql_subtype *restype = NULL, *condtype = NULL, ctype, rtype, bt;
3881 100621 : sql_exp *res = NULL, *opt_cond_exp = NULL;
3882 100621 : exp_kind ek = {type_value, card_column, FALSE};
3883 :
3884 100621 : if (opt_cond) {
3885 9436 : if (!(opt_cond_exp = rel_value_exp(query, rel, opt_cond, f, ek)))
3886 : return NULL;
3887 9435 : condtype = exp_subtype(opt_cond_exp);
3888 : }
3889 :
3890 248297 : for (dnode *dn = when_search_list->h; dn; dn = dn->next) {
3891 147686 : sql_exp *cond = NULL, *result = NULL;
3892 147686 : dlist *when = dn->data.sym->data.lval;
3893 :
3894 147686 : if (opt_cond)
3895 45602 : cond = rel_value_exp(query, rel, when->h->data.sym, f, ek);
3896 : else
3897 102084 : cond = rel_logical_value_exp(query, rel, when->h->data.sym, f, ek);
3898 147686 : if (!cond)
3899 : return NULL;
3900 147680 : append(conds, cond);
3901 147680 : tpe = exp_subtype(cond);
3902 147680 : if (tpe && condtype) {
3903 56495 : result_datatype(&ctype, condtype, tpe);
3904 56495 : condtype = &ctype;
3905 91185 : } else if (tpe) {
3906 91183 : condtype = tpe;
3907 : }
3908 :
3909 147680 : if (!(result = rel_value_exp(query, rel, when->h->next->data.sym, f, ek)))
3910 : return NULL;
3911 147677 : append(results, result);
3912 147677 : tpe = exp_subtype(result);
3913 147677 : if (tpe && restype) {
3914 47063 : result_datatype(&rtype, restype, tpe);
3915 47063 : restype = &rtype;
3916 100614 : } else if (tpe) {
3917 100608 : restype = tpe;
3918 : }
3919 : }
3920 100611 : if (opt_else) {
3921 98041 : if (!(res = rel_value_exp(query, rel, opt_else, f, ek)))
3922 : return NULL;
3923 :
3924 98041 : tpe = exp_subtype(res);
3925 98041 : if (tpe && restype) {
3926 98036 : result_datatype(&rtype, restype, tpe);
3927 98036 : restype = &rtype;
3928 5 : } else if (tpe) {
3929 : restype = tpe;
3930 : }
3931 :
3932 98039 : if (!restype)
3933 2 : return sql_error(sql, 02, SQLSTATE(42000) "Result type missing");
3934 98039 : if (restype->type->localtype == TYPE_void) /* NULL */
3935 0 : restype = sql_bind_localtype("str");
3936 :
3937 98039 : if (!(res = exp_check_type(sql, restype, rel ? *rel : NULL, res, type_equal)))
3938 : return NULL;
3939 : } else {
3940 2570 : if (!restype)
3941 0 : return sql_error(sql, 02, SQLSTATE(42000) "Result type missing");
3942 2570 : if (restype->type->localtype == TYPE_void) /* NULL */
3943 7 : restype = sql_bind_localtype("str");
3944 2570 : res = exp_null(sql->sa, restype);
3945 : }
3946 :
3947 100609 : if (!condtype)
3948 0 : return sql_error(sql, 02, SQLSTATE(42000) "Condition type missing");
3949 100609 : if (condtype->type->localtype == TYPE_void) /* NULL */
3950 0 : condtype = sql_bind_localtype("str");
3951 100609 : if (opt_cond_exp && !(opt_cond_exp = exp_check_type(sql, condtype, rel ? *rel : NULL, opt_cond_exp, type_equal)))
3952 : return NULL;
3953 100609 : sql_find_subtype(&bt, "boolean", 0, 0);
3954 100609 : list *args = sa_list(sql->sa);
3955 100609 : if (opt_cond_exp)
3956 9429 : append(args, opt_cond_exp);
3957 248279 : for (node *n = conds->h, *m = results->h; n && m; n = n->next, m = m->next) {
3958 147671 : sql_exp *cond = n->data;
3959 147671 : sql_exp *result = m->data;
3960 :
3961 147671 : if (!(result = exp_check_type(sql, restype, rel ? *rel : NULL, result, type_equal)))
3962 : return NULL;
3963 :
3964 147671 : if (!(cond = exp_check_type(sql, condtype, rel ? *rel : NULL, cond, type_equal)))
3965 : return NULL;
3966 147670 : if (!opt_cond_exp && !(cond = exp_check_type(sql, &bt, rel ? *rel : NULL, cond, type_equal)))
3967 : return NULL;
3968 147670 : append(args, cond);
3969 147670 : append(args, result);
3970 : }
3971 100608 : assert(res);
3972 100608 : list_append(args, res);
3973 100608 : list *types = sa_list(sql->sa);
3974 100608 : types = append(append(types, restype), restype);
3975 191788 : sql_subfunc *case_func = find_func(sql, NULL, opt_cond_exp?"casewhen":"case", list_length(types), F_FUNC, true, NULL, NULL);
3976 100608 : res = exp_op(sql->sa, args, case_func);
3977 100608 : ((sql_subfunc*)res->f)->res->h->data = sql_create_subtype(sql->sa, restype->type, restype->digits, restype->scale);
3978 100608 : return res;
3979 : }
3980 :
3981 : static sql_exp *
3982 3838 : rel_complex_case(sql_query *query, sql_rel **rel, dlist *case_args, int f, str func)
3983 : {
3984 3838 : exp_kind ek = {type_value, card_column, FALSE};
3985 3838 : list *args = sa_list(query->sql->sa);
3986 3838 : sql_subtype *restype = NULL, rtype;
3987 3838 : sql_exp *res;
3988 :
3989 : /* generate nested func calls */
3990 11970 : for(dnode *dn = case_args->h; dn; dn = dn->next) {
3991 8145 : sql_exp *a = rel_value_exp(query, rel, dn->data.sym, f, ek);
3992 8145 : if (!a)
3993 : return NULL;
3994 8132 : append(args, a);
3995 : /* all arguments should have the same type */
3996 8132 : sql_subtype *tpe = exp_subtype(a);
3997 8132 : if (tpe && restype) {
3998 4296 : result_datatype(&rtype, restype, tpe);
3999 4296 : restype = &rtype;
4000 3836 : } else if (tpe) {
4001 3836 : restype = tpe;
4002 : }
4003 : }
4004 3825 : if (!restype)
4005 0 : return sql_error(query->sql, 02, SQLSTATE(42000) "Result type missing");
4006 3825 : if (restype->type->localtype == TYPE_void) /* NULL */
4007 0 : restype = sql_bind_localtype("str");
4008 3825 : list *nargs = sa_list(query->sql->sa);
4009 11942 : for (node *m = args->h; m; m = m->next) {
4010 8117 : sql_exp *result = m->data;
4011 :
4012 8117 : if (!(result = exp_check_type(query->sql, restype, rel ? *rel : NULL, result, type_equal)))
4013 : return NULL;
4014 8117 : append(nargs, result);
4015 : }
4016 3825 : list *types = append(append(sa_list(query->sql->sa), restype), restype);
4017 3825 : sql_subfunc *fnc = find_func(query->sql, NULL, func, list_length(types), F_FUNC, true, NULL, NULL);
4018 3825 : res = exp_op(query->sql->sa, nargs, fnc);
4019 3825 : ((sql_subfunc*)res->f)->res->h->data = sql_create_subtype(query->sql->sa, restype->type, restype->digits, restype->scale);
4020 3825 : return res;
4021 : }
4022 :
4023 : static sql_exp *
4024 104459 : rel_case_exp(sql_query *query, sql_rel **rel, symbol *se, int f)
4025 : {
4026 104459 : dlist *l = se->data.lval;
4027 :
4028 104459 : if (se->token == SQL_COALESCE) {
4029 3687 : return rel_complex_case(query, rel, l, f | sql_farg, "coalesce");
4030 100772 : } else if (se->token == SQL_NULLIF) {
4031 151 : return rel_complex_case(query, rel, l, f | sql_farg, "nullif");
4032 100621 : } else if (l->h->type == type_list) {
4033 91185 : dlist *when_search_list = l->h->data.lval;
4034 91185 : symbol *opt_else = l->h->next->data.sym;
4035 :
4036 91185 : return rel_case(query, rel, NULL, when_search_list, opt_else, f | sql_farg);
4037 : } else {
4038 9436 : symbol *scalar_exp = l->h->data.sym;
4039 9436 : dlist *when_value_list = l->h->next->data.lval;
4040 9436 : symbol *opt_else = l->h->next->next->data.sym;
4041 :
4042 9436 : return rel_case(query, rel, scalar_exp, when_value_list, opt_else, f | sql_farg);
4043 : }
4044 : }
4045 :
4046 : #define E_ATOM_STRING(e) ((atom*)(e)->l)->data.val.sval
4047 :
4048 : static sql_exp *
4049 169014 : rel_cast(sql_query *query, sql_rel **rel, symbol *se, int f)
4050 : {
4051 169014 : mvc *sql = query->sql;
4052 169014 : dlist *dl = se->data.lval;
4053 169014 : symbol *s = dl->h->data.sym;
4054 169014 : sql_subtype *tpe = &dl->h->next->data.typeval;
4055 169014 : exp_kind ek = {type_value, card_column, FALSE};
4056 169014 : sql_exp *e = rel_value_exp(query, rel, s, f|sql_farg, ek);
4057 :
4058 169014 : if (!e)
4059 : return NULL;
4060 :
4061 : /* strings may need to be truncated */
4062 168999 : if (EC_VARCHAR(tpe->type->eclass) && tpe->digits > 0) {
4063 82568 : sql_subtype *et = exp_subtype(e);
4064 : /* truncate only if the number of digits are smaller or from clob */
4065 82568 : if (et && EC_VARCHAR(et->type->eclass) && (tpe->digits < et->digits || et->digits == 0)) {
4066 2870 : sql_subfunc *c = sql_bind_func(sql, "sys", "truncate", et, sql_bind_localtype("int"), F_FUNC, true, true);
4067 2870 : if (c)
4068 2870 : e = exp_binop(sql->sa, e, exp_atom_int(sql->sa, tpe->digits), c);
4069 : }
4070 : }
4071 :
4072 168999 : if (e->type == e_atom && tpe->type->eclass == EC_DEC) {
4073 86 : sql_subtype *et = exp_subtype(e);
4074 86 : if (et->type->eclass == EC_NUM) {
4075 42 : unsigned int min_precision = atom_num_digits(e->l);
4076 42 : if (min_precision > tpe->digits)
4077 0 : return sql_error(sql, 02, SQLSTATE(42000) "Precision (%d) should be at least (%d)", tpe->digits, min_precision);
4078 42 : tpe = sql_bind_subtype(sql->sa, "decimal", min_precision, et->scale);
4079 44 : } else if (EC_VARCHAR(et->type->eclass)) {
4080 12 : char *s = E_ATOM_STRING(e);
4081 12 : unsigned int min_precision = 0, min_scale = 0;
4082 12 : bool dot_seen = false;
4083 61 : for (size_t i = 0; i < strlen(s); i++) {
4084 49 : if (isdigit(s[i])) {
4085 41 : min_precision++;
4086 41 : if (dot_seen)
4087 14 : min_scale++;
4088 8 : } else if (s[i] == '.') {
4089 7 : dot_seen = true;
4090 : }
4091 : }
4092 12 : tpe = sql_bind_subtype(sql->sa, "decimal", min_precision, min_scale);
4093 : }
4094 : }
4095 :
4096 : if (e)
4097 168999 : e = exp_check_type(sql, tpe, rel ? *rel : NULL, e, type_cast);
4098 :
4099 168999 : if (e && e->type == e_convert)
4100 47984 : exp_label(sql->sa, e, ++sql->label);
4101 :
4102 : return e;
4103 : }
4104 :
4105 : static sql_exp *
4106 1584 : rel_next_value_for( mvc *sql, symbol *se )
4107 : {
4108 1584 : char *sname = qname_schema(se->data.lval);
4109 1584 : char *seqname = qname_schema_object(se->data.lval);
4110 1584 : sql_sequence *seq = NULL;
4111 1584 : sql_subtype t;
4112 1584 : sql_subfunc *f;
4113 :
4114 1584 : if (!stack_find_rel_view(sql, seqname)) {
4115 1388 : if (!(seq = find_sequence_on_scope(sql, sname, seqname, "NEXT VALUE FOR")))
4116 : return NULL;
4117 1386 : if (!mvc_schema_privs(sql, seq->s))
4118 0 : return sql_error(sql, 02, SQLSTATE(42000) "NEXT VALUE FOR: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), seq->s->base.name);
4119 : }
4120 1582 : sql_find_subtype(&t, "varchar", 0, 0);
4121 1582 : f = sql_bind_func(sql, "sys", "next_value_for", &t, &t, F_FUNC, true, true);
4122 1582 : assert(f);
4123 : /* sequence found in the stack. use session's schema? */
4124 1582 : return exp_binop(sql->sa, exp_atom_str(sql->sa, seq && seq->s ? seq->s->base.name : "sys", &t), exp_atom_str(sql->sa, seqname, &t), f);
4125 : }
4126 :
4127 : /* some users like to use aliases already in the groupby */
4128 : static sql_exp *
4129 165 : rel_selection_ref(sql_query *query, sql_rel **rel, char *name, dlist *selection)
4130 : {
4131 165 : allocator *sa = query->sql->sa;
4132 165 : dlist *nl;
4133 165 : exp_kind ek = {type_value, card_column, FALSE};
4134 165 : sql_exp *res = NULL;
4135 165 : symbol *nsym;
4136 :
4137 165 : if (!selection)
4138 : return NULL;
4139 :
4140 679 : for (dnode *n = selection->h; n; n = n->next) {
4141 : /* we only look for columns */
4142 517 : tokens to = n->data.sym->token;
4143 517 : if (to == SQL_COLUMN || to == SQL_IDENT) {
4144 515 : dlist *l = n->data.sym->data.lval;
4145 : /* AS name */
4146 515 : if (l->h->next->data.sval && strcmp(l->h->next->data.sval, name) == 0) {
4147 146 : sql_exp *ve = rel_value_exp(query, rel, l->h->data.sym, sql_sel|sql_groupby, ek);
4148 146 : if (ve) {
4149 145 : if (res)
4150 1 : return sql_error(query->sql, ERR_AMBIGUOUS, SQLSTATE(42000) "SELECT: identifier '%s' ambiguous", name);
4151 144 : res = ve;
4152 :
4153 144 : nl = dlist_create(sa);
4154 144 : exp_setname(query->sql, ve, NULL, name);
4155 : /* now we should rewrite the selection such that it uses the new group by column */
4156 144 : dlist_append_string(sa, nl, sa_strdup(sa, name));
4157 144 : nsym = symbol_create_list(sa, to, nl);
4158 144 : nl = dlist_create(sa);
4159 144 : dlist_append_symbol(sa, nl, nsym);
4160 : /* no alias */
4161 144 : dlist_append_symbol(sa, nl, NULL);
4162 144 : n->data.sym = symbol_create_list(sa, to, nl);
4163 : }
4164 : }
4165 : }
4166 : }
4167 : return res;
4168 : }
4169 :
4170 : static char*
4171 197 : symbol_get_identifier(symbol *sym)
4172 : {
4173 197 : dlist *syml;
4174 :
4175 197 : if (sym->token != SQL_COLUMN && sym->token != SQL_IDENT)
4176 : return NULL;
4177 182 : syml = sym->data.lval;
4178 182 : if (dlist_length(syml) > 1)
4179 : return NULL;
4180 :
4181 165 : return syml->h->data.sval;
4182 : }
4183 :
4184 : static sql_exp*
4185 23642 : rel_group_column(sql_query *query, sql_rel **rel, symbol *grp, dlist *selection, list *exps, int f)
4186 : {
4187 23642 : sql_query *lquery = query_create(query->sql);
4188 23642 : mvc *sql = query->sql;
4189 23642 : exp_kind ek = {type_value, card_value, TRUE};
4190 23642 : sql_exp *e = rel_value_exp2(lquery, rel, grp, f, ek);
4191 :
4192 23642 : if (e && exp_is_atom(e)) {
4193 34 : sql_subtype *tpe = exp_subtype(e);
4194 34 : if (!is_atom(e->type) ||!tpe || tpe->type->eclass != EC_NUM) {
4195 2 : if (!tpe)
4196 2 : return sql_error(sql, 02, SQLSTATE(42000) "Cannot have a parameter (?) for group by column");
4197 3 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: non-integer constant in GROUP BY");
4198 : }
4199 : }
4200 :
4201 192 : if (!e) {
4202 192 : char buf[ERRSIZE], *name;
4203 192 : int status = sql->session->status;
4204 192 : strcpy(buf, sql->errstr);
4205 : /* reset error */
4206 192 : sql->session->status = 0;
4207 192 : sql->errstr[0] = '\0';
4208 :
4209 192 : if ((name = symbol_get_identifier(grp))) {
4210 163 : e = rel_selection_ref(query, rel, name, selection);
4211 163 : if (!e) { /* attempt to find in the existing list of group by expressions */
4212 29 : for (node *n = exps->h ; n && !e ; n = n->next) {
4213 9 : sql_exp *ge = (sql_exp *) n->data;
4214 9 : const char *gen = exp_name(ge);
4215 :
4216 9 : if (gen && strcmp(name, gen) == 0)
4217 5 : e = exp_ref(sql, ge);
4218 : }
4219 : }
4220 : }
4221 49 : if (!e && query_has_outer(query)) {
4222 : /* reset error */
4223 32 : sql->session->status = 0;
4224 32 : sql->errstr[0] = '\0';
4225 32 : e = rel_value_exp2(query, rel, grp, f, ek);
4226 : }
4227 44 : if (!e) {
4228 13 : if (sql->errstr[0] == 0) {
4229 10 : sql->session->status = status;
4230 10 : strcpy(sql->errstr, buf);
4231 : }
4232 13 : return NULL;
4233 : }
4234 : }
4235 23624 : if (!exp_subtype(e))
4236 0 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) for group by column");
4237 : return e;
4238 : }
4239 :
4240 : static list*
4241 44 : list_power_set(allocator *sa, list* input) /* cube */
4242 : {
4243 44 : list *res = sa_list(sa);
4244 : /* N stores total number of subsets */
4245 44 : int N = (int) pow(2, input->cnt);
4246 :
4247 : /* generate each subset one by one */
4248 266 : for (int i = 0; i < N; i++) {
4249 222 : list *ll = sa_list(sa);
4250 222 : int j = 0; /* check every bit of i */
4251 844 : for (node *n = input->h ; n ; n = n->next) {
4252 : /* if j'th bit of i is set, then append */
4253 622 : if (i & (1 << j))
4254 311 : list_prepend(ll, n->data);
4255 622 : j++;
4256 : }
4257 222 : list_prepend(res, ll);
4258 : }
4259 44 : return res;
4260 : }
4261 :
4262 : static list*
4263 61 : list_rollup(allocator *sa, list* input)
4264 : {
4265 61 : list *res = sa_list(sa);
4266 :
4267 188 : for (int counter = input->cnt; counter > 0; counter--) {
4268 127 : list *ll = sa_list(sa);
4269 127 : int j = 0;
4270 376 : for (node *n = input->h; n && j < counter; j++, n = n->next)
4271 249 : list_append(ll, n->data);
4272 127 : list_append(res, ll);
4273 : }
4274 61 : list_append(res, sa_list(sa)); /* global aggregate case */
4275 61 : return res;
4276 : }
4277 :
4278 : static int
4279 320 : list_equal(list* list1, list* list2)
4280 : {
4281 375 : for (node *n = list1->h; n ; n = n->next) {
4282 328 : sql_exp *e = (sql_exp*) n->data;
4283 328 : if (!exps_find_exp(list2, e))
4284 : return 1;
4285 : }
4286 78 : for (node *n = list2->h; n ; n = n->next) {
4287 47 : sql_exp *e = (sql_exp*) n->data;
4288 47 : if (!exps_find_exp(list1, e))
4289 : return 1;
4290 : }
4291 : return 0;
4292 : }
4293 :
4294 : static list*
4295 26 : lists_cartesian_product_and_distinct(allocator *sa, list *l1, list *l2)
4296 : {
4297 26 : list *res = sa_list(sa);
4298 :
4299 : /* for each list of l2, merge into each list of l1 while removing duplicates */
4300 116 : for (node *n = l1->h ; n ; n = n->next) {
4301 90 : list *sub_list = (list*) n->data;
4302 :
4303 279 : for (node *m = l2->h ; m ; m = m->next) {
4304 189 : list *other = (list*) m->data;
4305 189 : list_append(res, list_distinct(list_merge(list_dup(sub_list, (fdup) NULL), other, (fdup) NULL), (fcmp) list_equal, (fdup) NULL));
4306 : }
4307 : }
4308 26 : return res;
4309 : }
4310 :
4311 : static list*
4312 9801 : rel_groupings(sql_query *query, sql_rel **rel, symbol *groupby, dlist *selection, int f, bool grouping_sets, list **sets)
4313 : {
4314 9801 : mvc *sql = query->sql;
4315 9801 : list *exps = new_exp_list(sql->sa);
4316 :
4317 9801 : if (mvc_highwater(sql))
4318 0 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
4319 :
4320 33351 : for (dnode *o = groupby->data.lval->h; o; o = o->next) {
4321 23569 : symbol *grouping = o->data.sym;
4322 23569 : list *next_set = NULL;
4323 :
4324 23569 : if (grouping->token == SQL_GROUPING_SETS) { /* call recursively, and merge the generated sets */
4325 39 : list *other = rel_groupings(query, rel, grouping, selection, f, true, &next_set);
4326 39 : if (!other)
4327 19 : return NULL;
4328 39 : exps = list_distinct(list_merge(exps, other, (fdup) NULL), (fcmp) exp_equal, (fdup) NULL);
4329 : } else {
4330 23530 : dlist *dl = grouping->data.lval;
4331 23530 : if (dl) {
4332 23504 : list *set_cols = new_exp_list(sql->sa); /* columns and combination of columns to be used for the next set */
4333 :
4334 47098 : for (dnode *oo = dl->h; oo; oo = oo->next) {
4335 23612 : symbol *grp = oo->data.sym;
4336 23612 : list *next_tuple = new_exp_list(sql->sa); /* next tuple of columns */
4337 :
4338 23612 : if (grp->token == SQL_COLUMN_GROUP) { /* set of columns */
4339 71 : assert(is_sql_group_totals(f));
4340 172 : for (dnode *ooo = grp->data.lval->h; ooo; ooo = ooo->next) {
4341 101 : symbol *elm = ooo->data.sym;
4342 101 : sql_exp *e = rel_group_column(query, rel, elm, selection, exps, f);
4343 101 : if (!e)
4344 : return NULL;
4345 101 : assert(e->type == e_column);
4346 101 : list_append(next_tuple, e);
4347 101 : list_append(exps, e);
4348 : }
4349 : } else { /* single column or expression */
4350 23541 : sql_exp *e = rel_group_column(query, rel, grp, selection, exps, f);
4351 23541 : if (!e)
4352 : return NULL;
4353 23523 : if (e->type != e_column && !exp_is_atom(e)) { /* store group by expressions in the stack */
4354 140 : if (is_sql_group_totals(f))
4355 0 : return sql_error(sql, 02, SQLSTATE(42000) "GROUP BY: grouping expressions not possible with ROLLUP, CUBE and GROUPING SETS");
4356 140 : if (!exp_has_rel(e) && !frame_push_groupby_expression(sql, grp, e))
4357 : return NULL;
4358 : }
4359 23523 : list_append(next_tuple, e);
4360 23523 : list_append(exps, e);
4361 : }
4362 23594 : list_append(set_cols, next_tuple);
4363 : }
4364 23486 : if (is_sql_group_totals(f)) {
4365 178 : if (grouping->token == SQL_ROLLUP)
4366 61 : next_set = list_rollup(sql->sa, set_cols);
4367 117 : else if (grouping->token == SQL_CUBE)
4368 44 : next_set = list_power_set(sql->sa, set_cols);
4369 : else /* the list of sets is not used in the "GROUP BY a, b, ..." case */
4370 73 : next_set = list_append(new_exp_list(sql->sa), set_cols);
4371 : }
4372 26 : } else if (is_sql_group_totals(f) && grouping_sets) /* The GROUP BY () case is the global aggregate which is always added by ROLLUP and CUBE */
4373 17 : next_set = list_append(new_exp_list(sql->sa), new_exp_list(sql->sa));
4374 : }
4375 23551 : if (is_sql_group_totals(f)) { /* if there are no sets, set the found one, otherwise calculate cartesian product and merge the distinct ones */
4376 235 : if (!next_set)
4377 1 : return sql_error(sql, 02, SQLSTATE(42000) "GROUP BY: GROUPING SETS is empty");
4378 234 : if (!*sets)
4379 157 : *sets = next_set;
4380 : else
4381 77 : *sets = grouping_sets ? list_merge(*sets, next_set, (fdup) NULL) : lists_cartesian_product_and_distinct(sql->sa, *sets, next_set);
4382 : }
4383 : }
4384 : return exps;
4385 : }
4386 :
4387 : static list*
4388 8208 : rel_partition_groupings(sql_query *query, sql_rel **rel, symbol *partitionby, dlist *selection, int f)
4389 : {
4390 8208 : mvc *sql = query->sql;
4391 8208 : dnode *o = partitionby->data.lval->h;
4392 8208 : list *exps = new_exp_list(sql->sa);
4393 :
4394 24650 : for (; o; o = o->next) {
4395 8242 : symbol *grp = o->data.sym;
4396 8242 : exp_kind ek = {type_value, card_value, TRUE};
4397 8242 : sql_exp *e = rel_value_exp2(query, rel, grp, f, ek);
4398 :
4399 8242 : if (!e) {
4400 5 : int status = sql->session->status;
4401 5 : char buf[ERRSIZE], *name;
4402 :
4403 : /* reset error */
4404 5 : sql->session->status = 0;
4405 5 : strcpy(buf, sql->errstr);
4406 5 : sql->errstr[0] = '\0';
4407 :
4408 5 : if ((name = symbol_get_identifier(grp))) {
4409 2 : e = rel_selection_ref(query, rel, name, selection);
4410 2 : if (!e) { /* attempt to find in the existing list of partition by expressions */
4411 3 : for (node *n = exps->h ; n ; n = n->next) {
4412 1 : sql_exp *ge = (sql_exp *) n->data;
4413 1 : const char *gen = exp_name(ge);
4414 :
4415 1 : if (gen && strcmp(name, gen) == 0) {
4416 0 : e = exp_ref(sql, ge);
4417 0 : break;
4418 : }
4419 : }
4420 : }
4421 : }
4422 5 : if (!e) {
4423 5 : if (sql->errstr[0] == 0) {
4424 5 : sql->session->status = status;
4425 5 : strcpy(sql->errstr, buf);
4426 : }
4427 5 : return NULL;
4428 : }
4429 : }
4430 :
4431 8237 : if (exp_has_rel(e))
4432 3 : return sql_error(sql, 02, SQLSTATE(42000) "PARTITION BY: subqueries not allowed in PARTITION BY clause");
4433 :
4434 8234 : if (e->type != e_column) { /* store group by expressions in the stack */
4435 36 : if (!frame_push_groupby_expression(sql, grp, e))
4436 : return NULL;
4437 : }
4438 :
4439 8234 : if (e->card > CARD_AGGR)
4440 8114 : e->card = CARD_AGGR;
4441 8234 : append(exps, e);
4442 : }
4443 : return exps;
4444 : }
4445 :
4446 : /* find selection expressions matching the order by column expression */
4447 : /* complex columns only */
4448 : static sql_exp *
4449 66939 : rel_order_by_column_exp(sql_query *query, sql_rel **R, symbol *column_r, int needs_distinct, int f)
4450 : {
4451 66939 : mvc *sql = query->sql;
4452 66939 : sql_rel *r = *R, *p = NULL;
4453 66939 : sql_exp *e = NULL, *found = NULL;
4454 66939 : exp_kind ek = {type_value, card_column, FALSE};
4455 :
4456 66939 : if (!r)
4457 : return e;
4458 :
4459 66939 : if (is_simple_project(r->op) && r->l && is_processed(r)) {
4460 66877 : p = r;
4461 66877 : r = r->l;
4462 : }
4463 :
4464 66939 : e = rel_value_exp(query, &r, column_r, f, ek);
4465 :
4466 66939 : if (r && !p)
4467 62 : *R = r;
4468 66877 : else if (r)
4469 66877 : p->l = r;
4470 66939 : if (e && p) {
4471 66850 : if (is_project(p->op) && (found = exps_any_match(p->exps, e))) { /* if one of the projections matches, return a reference to it */
4472 59401 : e = exp_ref(sql, found);
4473 : } else {
4474 7449 : if (needs_distinct)
4475 2 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: with DISTINCT ORDER BY expressions must appear in select list");
4476 7447 : e = rel_project_add_exp(sql, p, e);
4477 7447 : if (r) {
4478 121019 : for (node *n = p->exps->h ; n ; n = n->next) {
4479 113574 : sql_exp *ee = n->data;
4480 :
4481 113574 : if (ee->card > r->card) {
4482 2 : if (exp_name(ee) && !has_label(ee))
4483 2 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(ee));
4484 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
4485 : }
4486 : }
4487 : }
4488 : }
4489 66846 : return e;
4490 : }
4491 89 : if (e && r && is_project(r->op)) {
4492 28 : sql_exp *found = exps_find_exp(r->exps, e);
4493 :
4494 28 : if (!found) {
4495 8 : if (needs_distinct)
4496 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: with DISTINCT ORDER BY expressions must appear in select list");
4497 8 : if (!is_simple_project(r->op) && !is_groupby(r->op))
4498 1 : *R = r = rel_project(sql->sa, r, rel_projections(sql, r, NULL, 1, 0));
4499 8 : append(r->exps, e);
4500 : } else {
4501 : e = found;
4502 : }
4503 28 : e = exp_ref(sql, e);
4504 : }
4505 : return e;
4506 : }
4507 :
4508 : static dlist *
4509 114437 : simple_selection(symbol *sq)
4510 : {
4511 114437 : if (sq->token == SQL_SELECT) {
4512 13 : SelectNode *sn;
4513 13 : sn = (SelectNode *) sq;
4514 :
4515 13 : if (!sn->from && !sn->where && !sn->distinct && !sn->window && dlist_length(sn->selection) == 1)
4516 7 : return sn->selection;
4517 : }
4518 : return NULL;
4519 : }
4520 :
4521 : static list *
4522 45376 : rel_order_by(sql_query *query, sql_rel **R, symbol *orderby, int needs_distinct, int f)
4523 : {
4524 45376 : mvc *sql = query->sql;
4525 45376 : sql_rel *rel = *R, *or = rel; /* the order by relation */
4526 45376 : list *exps = new_exp_list(sql->sa);
4527 :
4528 45376 : if (!orderby->data.lval) { /* by all */
4529 2 : if (is_sql_orderby(f)) {
4530 2 : assert(is_project(rel->op));
4531 6 : for(node *n = rel->exps->h; n; n = n->next) {
4532 4 : sql_exp *e = n->data;
4533 4 : append(exps, exp_ref(sql, e));
4534 : }
4535 : return exps;
4536 : }
4537 : return NULL;
4538 : }
4539 :
4540 45374 : dnode *o = orderby->data.lval->h;
4541 45374 : dlist *selection = NULL;
4542 :
4543 45374 : if (is_sql_orderby(f)) {
4544 36510 : assert(is_project(rel->op));
4545 36510 : rel = rel->l;
4546 : }
4547 :
4548 159764 : for (; o; o = o->next) {
4549 114437 : symbol *order = o->data.sym;
4550 :
4551 114437 : if (order->token == SQL_COLUMN || order->token == SQL_IDENT) {
4552 114437 : symbol *col = order->data.lval->h->data.sym;
4553 114437 : int direction = order->data.lval->h->next->data.i_val;
4554 114437 : sql_exp *e = NULL;
4555 :
4556 114437 : assert(order->data.lval->h->next->type == type_int);
4557 114437 : if ((selection = simple_selection(col)) != NULL) {
4558 7 : dnode *o = selection->h;
4559 7 : order = o->data.sym;
4560 7 : if (order->data.lval->h->type == type_symbol)
4561 6 : col = order->data.lval->h->data.sym;
4562 : /* remove optional name from selection */
4563 7 : order->data.lval->h->next = NULL;
4564 : }
4565 :
4566 114437 : if (col->token == SQL_COLUMN || col->token == SQL_IDENT || col->token == SQL_ATOM) {
4567 114215 : exp_kind ek = {type_value, card_column, FALSE};
4568 :
4569 114215 : e = rel_value_exp2(query, &rel, col, f, ek);
4570 :
4571 114215 : if (e && e->card <= CARD_ATOM) {
4572 9364 : sql_subtype *tpe = exp_subtype(e);
4573 : /* integer atom on the stack */
4574 9364 : if (!is_sql_window(f) && e->type == e_atom &&
4575 9256 : tpe->type->eclass == EC_NUM) {
4576 9247 : atom *a = e->l;
4577 9247 : int nr = (int)atom_get_int(a);
4578 :
4579 9247 : e = exps_get_exp(rel->exps, nr);
4580 9247 : if (!e)
4581 3 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: the order by column number (%d) is not in the number of projections range (%d)", nr, list_length(rel->exps));
4582 9244 : e = exp_ref(sql, e);
4583 : }
4584 38129 : } else if (e && exp_card(e) > rel->card) {
4585 0 : if (exp_name(e) && !has_label(e))
4586 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(e));
4587 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
4588 : }
4589 114212 : if (e && !exp_name(e))
4590 23 : exp_label(sql->sa, e, ++sql->label);
4591 47490 : if (e && rel && is_project(rel->op)) {
4592 39202 : sql_exp *found = exps_find_exp(rel->exps, e);
4593 :
4594 39202 : if (!found) {
4595 33 : if (needs_distinct)
4596 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: with DISTINCT ORDER BY expressions must appear in select list");
4597 33 : if (!is_freevar(e))
4598 16 : append(rel->exps, e);
4599 : } else {
4600 : e = found;
4601 : }
4602 39202 : if (!is_freevar(e))
4603 39185 : e = exp_ref(sql, e);
4604 : }
4605 : }
4606 :
4607 114434 : if (rel && !e && sql->session->status != -ERR_AMBIGUOUS) {
4608 : /* reset error */
4609 66939 : sql->session->status = 0;
4610 66939 : sql->errstr[0] = '\0';
4611 :
4612 66939 : e = rel_order_by_column_exp(query, &rel, col, needs_distinct, sql_sel | sql_orderby | (f & sql_group_totals) | (f & sql_window));
4613 : }
4614 66944 : if (!e)
4615 : return NULL;
4616 114391 : if (!exp_subtype(e))
4617 1 : return sql_error(sql, 01, SQLSTATE(42000) "Cannot have a parameter (?) for order by column");
4618 114390 : set_direction(e, direction);
4619 114390 : list_append(exps, e);
4620 : } else {
4621 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: order not of type SQL_COLUMN");
4622 : }
4623 : }
4624 45327 : if (is_sql_orderby(f) && or != rel)
4625 36470 : or->l = rel;
4626 45327 : if (is_sql_window(f))
4627 8857 : *R = rel;
4628 : return exps;
4629 : }
4630 :
4631 : static int
4632 814 : generate_window_bound(tokens sql_token, bool first_half)
4633 : {
4634 814 : switch (sql_token) {
4635 408 : case SQL_PRECEDING:
4636 408 : return first_half ? BOUND_FIRST_HALF_PRECEDING : BOUND_SECOND_HALF_PRECEDING;
4637 284 : case SQL_FOLLOWING:
4638 284 : return first_half ? BOUND_FIRST_HALF_FOLLOWING : BOUND_SECOND_HALF_FOLLOWING;
4639 122 : case SQL_CURRENT_ROW:
4640 122 : return first_half ? CURRENT_ROW_PRECEDING : CURRENT_ROW_FOLLOWING;
4641 : default:
4642 0 : assert(0);
4643 : }
4644 : return 0;
4645 : }
4646 :
4647 : /* window functions */
4648 : static sql_exp*
4649 407 : generate_window_bound_call(mvc *sql, sql_exp **estart, sql_exp **eend, sql_exp *pe, sql_exp *e,
4650 : sql_exp *start, sql_exp *fend, int frame_type, int excl, tokens t1, tokens t2)
4651 : {
4652 407 : list *rargs1 = sa_list(sql->sa), *rargs2 = sa_list(sql->sa), *targs1 = sa_list(sql->sa), *targs2 = sa_list(sql->sa);
4653 407 : sql_subfunc *dc1, *dc2;
4654 407 : sql_subtype *it = sql_bind_localtype("int");
4655 :
4656 407 : if (pe) {
4657 186 : append(targs1, exp_subtype(pe));
4658 186 : append(targs2, exp_subtype(pe));
4659 186 : append(rargs1, exp_copy(sql, pe));
4660 186 : append(rargs2, exp_copy(sql, pe));
4661 : }
4662 407 : append(rargs1, exp_copy(sql, e));
4663 407 : append(rargs2, exp_copy(sql, e));
4664 407 : append(targs1, exp_subtype(e));
4665 407 : append(targs2, exp_subtype(e));
4666 407 : append(targs1, it);
4667 407 : append(targs2, it);
4668 407 : append(targs1, it);
4669 407 : append(targs2, it);
4670 407 : append(targs1, it);
4671 407 : append(targs2, it);
4672 407 : append(targs1, exp_subtype(start));
4673 407 : append(targs2, exp_subtype(fend));
4674 :
4675 407 : dc1 = sql_bind_func_(sql, "sys", "window_bound", targs1, F_ANALYTIC, true, false);
4676 407 : dc2 = sql_bind_func_(sql, "sys", "window_bound", targs2, F_ANALYTIC, true, false);
4677 407 : if (!dc1 || !dc2)
4678 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: function 'window_bound' not found");
4679 407 : append(rargs1, exp_atom_int(sql->sa, frame_type));
4680 407 : append(rargs2, exp_atom_int(sql->sa, frame_type));
4681 407 : append(rargs1, exp_atom_int(sql->sa, generate_window_bound(t1, true)));
4682 407 : append(rargs2, exp_atom_int(sql->sa, generate_window_bound(t2, false)));
4683 407 : append(rargs1, exp_atom_int(sql->sa, excl));
4684 407 : append(rargs2, exp_atom_int(sql->sa, excl));
4685 407 : append(rargs1, start);
4686 407 : append(rargs2, fend);
4687 :
4688 407 : *estart = exp_op(sql->sa, rargs1, dc1);
4689 407 : *eend = exp_op(sql->sa, rargs2, dc2);
4690 407 : return e; /* return something to say there were no errors */
4691 : }
4692 :
4693 : #define EC_NUMERIC(e) (e==EC_NUM||EC_INTERVAL(e)||e==EC_DEC||e==EC_FLT)
4694 :
4695 : static sql_exp*
4696 601 : calculate_window_bound(sql_query *query, sql_rel *p, tokens token, symbol *bound, sql_exp *ie, int frame_type, int f)
4697 : {
4698 601 : mvc *sql = query->sql;
4699 601 : sql_subtype *bt, *bound_tp = sql_bind_localtype("lng"), *iet = exp_subtype(ie);
4700 601 : sql_exp *res = NULL;
4701 :
4702 792 : if ((bound->token == SQL_PRECEDING || bound->token == SQL_FOLLOWING || bound->token == SQL_CURRENT_ROW) && bound->type == type_int) {
4703 191 : atom *a = NULL;
4704 191 : bt = (frame_type == FRAME_ROWS || frame_type == FRAME_GROUPS) ? bound_tp : iet;
4705 :
4706 191 : if ((bound->data.i_val == UNBOUNDED_PRECEDING_BOUND || bound->data.i_val == UNBOUNDED_FOLLOWING_BOUND)) {
4707 69 : a = atom_max_value(sql->sa, EC_NUMERIC(bt->type->eclass) ? bt : bound_tp);
4708 122 : } else if (bound->data.i_val == CURRENT_ROW_BOUND) {
4709 124 : a = atom_zero_value(sql->sa, EC_NUMERIC(bt->type->eclass) ? bt : bound_tp);
4710 : } else {
4711 0 : assert(0);
4712 : }
4713 191 : res = exp_atom(sql->sa, a);
4714 : } else { /* arbitrary expression case */
4715 410 : exp_kind ek = {type_value, card_column, FALSE};
4716 410 : const char *bound_desc = (token == SQL_PRECEDING) ? "PRECEDING" : "FOLLOWING";
4717 :
4718 410 : assert(token == SQL_PRECEDING || token == SQL_FOLLOWING);
4719 410 : if (!(res = rel_value_exp2(query, &p, bound, f, ek)))
4720 3 : return NULL;
4721 410 : if (!(bt = exp_subtype(res))) { /* frame bound is a parameter */
4722 3 : sql_subtype *t = (frame_type == FRAME_ROWS || frame_type == FRAME_GROUPS) ? bound_tp : iet;
4723 3 : if (rel_set_type_param(sql, t, p, res, 0) < 0) /* workaround */
4724 : return NULL;
4725 3 : bt = exp_subtype(res);
4726 : }
4727 410 : if (exp_is_null_no_value_opt(res))
4728 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s offset must not be NULL", bound_desc);
4729 409 : if ((frame_type == FRAME_ROWS || frame_type == FRAME_GROUPS) && bt->type->eclass != EC_NUM && !(res = exp_check_type(sql, bound_tp, p, res, type_equal)))
4730 : return NULL;
4731 409 : if (frame_type == FRAME_RANGE) {
4732 70 : sql_class iet_class = iet->type->eclass;
4733 :
4734 70 : if (!EC_NUMERIC(iet_class) && !EC_TEMP(iet_class))
4735 1 : return sql_error(sql, 02, SQLSTATE(42000) "Ranges with arbitrary expressions are available to numeric, interval and temporal types only");
4736 12 : if (EC_NUMERIC(iet_class) && !(res = exp_check_type(sql, iet, p, res, type_equal)))
4737 : return NULL;
4738 69 : if ((iet_class == EC_TIME || iet_class == EC_TIME_TZ) && bt->type->eclass != EC_SEC) {
4739 1 : (void) sql_error(sql, 02, SQLSTATE(42000) "For %s input the %s boundary must be an interval type up to the day", subtype2string2(sql->ta, iet), bound_desc);
4740 1 : sa_reset(sql->ta);
4741 1 : return NULL;
4742 : }
4743 68 : if (EC_TEMP(iet->type->eclass) && !EC_INTERVAL(bt->type->eclass)) {
4744 0 : (void) sql_error(sql, 02, SQLSTATE(42000) "For %s input the %s boundary must be an interval type", subtype2string2(sql->ta, iet), bound_desc);
4745 0 : sa_reset(sql->ta);
4746 0 : return NULL;
4747 : }
4748 : }
4749 : }
4750 : return res;
4751 : }
4752 :
4753 : static dlist*
4754 16 : get_window_clauses(mvc *sql, char* ident, symbol **partition_by_clause, symbol **order_by_clause, symbol **frame_clause)
4755 : {
4756 16 : dlist *window_specification = NULL;
4757 16 : char *window_ident;
4758 16 : int pos;
4759 :
4760 16 : if (mvc_highwater(sql))
4761 0 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
4762 :
4763 16 : if ((window_specification = frame_get_window_def(sql, ident, &pos)) == NULL)
4764 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: window '%s' not found", ident);
4765 :
4766 : /* avoid infinite lookups */
4767 15 : if (frame_check_var_visited(sql, pos))
4768 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: cyclic references to window '%s' found", ident);
4769 14 : frame_set_var_visited(sql, pos);
4770 :
4771 14 : if (window_specification->h->next->data.sym) {
4772 2 : if (*partition_by_clause)
4773 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: redefinition of PARTITION BY clause from window '%s'", ident);
4774 2 : *partition_by_clause = window_specification->h->next->data.sym;
4775 : }
4776 14 : if (window_specification->h->next->next->data.sym) {
4777 4 : if (*order_by_clause)
4778 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: redefinition of ORDER BY clause from window '%s'", ident);
4779 3 : *order_by_clause = window_specification->h->next->next->data.sym;
4780 : }
4781 13 : if (window_specification->h->next->next->next->data.sym) {
4782 0 : if (*frame_clause)
4783 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: redefinition of frame clause from window '%s'", ident);
4784 0 : *frame_clause = window_specification->h->next->next->next->data.sym;
4785 : }
4786 :
4787 13 : window_ident = window_specification->h->data.sval;
4788 13 : if (window_ident && !get_window_clauses(sql, window_ident, partition_by_clause, order_by_clause, frame_clause))
4789 : return NULL; /* the error was already set */
4790 :
4791 : return window_specification; /* return something to say there were no errors */
4792 : }
4793 :
4794 : /*
4795 : * select x, y, rank_op() over (partition by x order by y) as, ...
4796 : aggr_op(z) over (partition by y order by x) as, ...
4797 : * from table [x,y,z,w,v]
4798 : *
4799 : * project and order by over x,y / y,x
4800 : * a = project( table ) [ x, y, z, w, v ], [ x, y]
4801 : * b = project( table ) [ x, y, z, w, v ], [ y, x]
4802 : *
4803 : * project with order dependent operators, ie combined prev/current value
4804 : * aa = project (a) [ x, y, r = rank_op(diff(x) (marks a new partition), rediff(diff(x), y) (marks diff value with in partition)), z, w, v ]
4805 : * project(aa) [ aa.x, aa.y, aa.r ] -- only keep current output list
4806 : * bb = project (b) [ x, y, a = aggr_op(z, diff(y), rediff(diff(y), x)), z, w, v ]
4807 : * project(bb) [ bb.x, bb.y, bb.a ] -- only keep current output list
4808 : */
4809 : static sql_exp *
4810 17947 : rel_rankop(sql_query *query, sql_rel **rel, symbol *se, int f)
4811 : {
4812 17947 : mvc *sql = query->sql;
4813 17947 : node *n;
4814 17947 : dlist *l = se->data.lval, *window_specification = NULL;
4815 17947 : symbol *window_function = l->h->data.sym, *partition_by_clause = NULL, *order_by_clause = NULL, *frame_clause = NULL;
4816 17947 : char *aname = NULL, *sname = NULL, *window_ident = NULL;
4817 17947 : sql_subfunc *wf = NULL;
4818 17947 : sql_exp *in = NULL, *pe = NULL, *oe = NULL, *call = NULL, *start = NULL, *eend = NULL, *fstart = NULL, *fend = NULL, *ie = NULL;
4819 17947 : sql_rel *p;
4820 17947 : list *gbe = NULL, *obe = NULL, *args = NULL, *types = NULL, *fargs = NULL;
4821 17947 : dnode *dn = window_function->data.lval->h, *dargs = NULL;
4822 17947 : int distinct = 0, frame_type, pos, nf = f, nfargs = 0;
4823 17947 : bool is_nth_value, supports_frames, found = false;
4824 :
4825 17947 : frame_clear_visited_flag(sql); /* clear visited flags before iterating */
4826 :
4827 17947 : if (l->h->next->type == type_list) {
4828 17931 : window_specification = l->h->next->data.lval;
4829 16 : } else if (l->h->next->type == type_string) {
4830 16 : const char* window_alias = l->h->next->data.sval;
4831 16 : if ((window_specification = frame_get_window_def(sql, window_alias, &pos)) == NULL)
4832 1 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: window '%s' not found", window_alias);
4833 15 : frame_set_var_visited(sql, pos);
4834 : } else {
4835 0 : assert(0);
4836 : }
4837 :
4838 17946 : window_ident = window_specification->h->data.sval;
4839 17946 : partition_by_clause = window_specification->h->next->data.sym;
4840 17946 : order_by_clause = window_specification->h->next->next->data.sym;
4841 17946 : frame_clause = window_specification->h->next->next->next->data.sym;
4842 :
4843 17946 : if (window_ident && !get_window_clauses(sql, window_ident, &partition_by_clause, &order_by_clause, &frame_clause))
4844 : return NULL;
4845 :
4846 17943 : frame_type = frame_clause ? frame_clause->data.lval->h->next->next->data.i_val : FRAME_RANGE;
4847 17943 : aname = qname_schema_object(dn->data.lval);
4848 17943 : sname = qname_schema(dn->data.lval);
4849 :
4850 17943 : is_nth_value = !strcmp(aname, "nth_value");
4851 17943 : bool is_value = is_nth_value || !strcmp(aname, "first_value") || !strcmp(aname, "last_value");
4852 17943 : supports_frames = window_function->token != SQL_RANK || is_value;
4853 :
4854 17943 : if (is_sql_update_set(f) || is_sql_psm(f) || is_sql_values(f) || is_sql_join(f) || is_sql_where(f) || is_sql_groupby(f) || is_sql_having(f) || is_psm_call(f) || is_sql_from(f)) {
4855 13 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4856 13 : const char *clause = is_sql_update_set(f)||is_sql_psm(f)?"in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses (use subquery)":is_sql_values(f)?"on an unique value":
4857 8 : is_sql_join(f)?"in JOIN conditions":is_sql_where(f)?"in WHERE clause":is_sql_groupby(f)?"in GROUP BY clause":
4858 4 : is_psm_call(f)?"in CALL":is_sql_from(f)?"in functions in FROM":"in HAVING clause";
4859 13 : return sql_error(sql, 02, SQLSTATE(42000) "%s: window function '%s' not allowed %s", toUpperCopy(uaname, aname), aname, clause);
4860 17930 : } else if (is_sql_aggr(f)) {
4861 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4862 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: window functions not allowed inside aggregation functions", toUpperCopy(uaname, aname));
4863 17928 : } else if (is_sql_window(f)) {
4864 6 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4865 6 : return sql_error(sql, 02, SQLSTATE(42000) "%s: window functions cannot be nested", toUpperCopy(uaname, aname));
4866 : }
4867 17922 : if (window_function->token == SQL_UNOP || window_function->token == SQL_OP) {
4868 3246 : window_function->token = SQL_NOP;
4869 3246 : dn->next->next->data.lval = dlist_append_symbol(sql->sa, dlist_create( sql->sa ), dn->next->next->data.sym); /* make a list */
4870 : }
4871 17922 : if (window_function->token == SQL_BINOP) {
4872 5149 : window_function->token = SQL_NOP;
4873 5149 : dn->next->next->data.lval = dlist_append_symbol(sql->sa, dlist_append_symbol(sql->sa, dlist_create( sql->sa ), dn->next->next->data.sym), dn->next->next->next->data.sym); /* make a list */
4874 5149 : dn->next->next->next = dn->next->next->next->next; /* skip second arg */
4875 : }
4876 17922 : if (window_function->token == SQL_AGGR)
4877 106 : dn->next->next->data.lval = dlist_append_symbol(sql->sa, dlist_create( sql->sa ), dn->next->next->data.sym); /* make a list */
4878 17922 : if (window_function->token == SQL_NOP)
4879 8397 : window_function->token = SQL_AGGR;
4880 17922 : if (window_function->token != SQL_RANK && window_function->token != SQL_AGGR) {
4881 0 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4882 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: window function '%s' unknown", toUpperCopy(uaname, aname));
4883 : }
4884 :
4885 : /* window operations are only allowed in the projection */
4886 17922 : if (!is_sql_sel(f))
4887 0 : return sql_error(sql, 02, SQLSTATE(42000) "OVER: only possible within the selection");
4888 :
4889 17922 : p = *rel;
4890 : /* Partition By */
4891 17922 : if (partition_by_clause) {
4892 8208 : gbe = rel_partition_groupings(query, &p, partition_by_clause, NULL /* cannot use (selection) column references, as this result is a selection column */, nf | sql_window);
4893 8208 : if (!gbe)
4894 : return NULL;
4895 16431 : for (n = gbe->h ; n ; n = n->next) {
4896 8231 : sql_exp *en = n->data;
4897 :
4898 8231 : set_ascending(en);
4899 8231 : set_nulls_first(en);
4900 : }
4901 : }
4902 :
4903 : /* Order By */
4904 17914 : if (order_by_clause) {
4905 8864 : obe = rel_order_by(query, &p, order_by_clause, 0, sql_window);
4906 8864 : if (!obe)
4907 : return NULL;
4908 : }
4909 :
4910 17907 : fargs = sa_list(sql->sa);
4911 17907 : if (window_function->token == SQL_RANK) { /* rank function call */
4912 9414 : dlist *dl = dn->next->next->data.lval;
4913 9414 : bool is_lag = !strcmp(aname, "lag"), is_lead = !strcmp(aname, "lead"),
4914 9414 : extra_input = !strcmp(aname, "ntile") || !strcmp(aname, "rank") || !strcmp(aname, "dense_rank") || !strcmp(aname, "row_number") || !strcmp(aname, "percent_rank") || !strcmp(aname, "cume_dist");
4915 :
4916 9414 : distinct = dn->next->data.i_val;
4917 9414 : if (extra_input) { /* pass an input column for analytic functions that don't require it */
4918 9230 : sql_subfunc *star = sql_bind_func(sql, "sys", "star", NULL, NULL, F_FUNC, true, true);
4919 9230 : in = exp_op(sql->sa, NULL, star);
4920 9230 : append(fargs, in);
4921 : }
4922 9414 : if (dl)
4923 593 : for (dargs = dl->h ; dargs ; dargs = dargs->next) {
4924 339 : exp_kind ek = {type_value, card_column, FALSE};
4925 339 : sql_subtype *empty = sql_bind_localtype("void"), *bte = sql_bind_localtype("bte");
4926 :
4927 339 : in = rel_value_exp2(query, &p, dargs->data.sym, f | sql_window | sql_farg, ek);
4928 339 : if (!in)
4929 0 : return NULL;
4930 339 : if (!exp_subtype(in)) { /* we also do not expect parameters here */
4931 0 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4932 0 : return sql_error(sql, 02, SQLSTATE(42000) "%s: parameters not allowed as arguments to window functions", toUpperCopy(uaname, aname));
4933 : }
4934 339 : if (!exp_name(in))
4935 151 : exp_label(sql->sa, in, ++sql->label);
4936 :
4937 : /* corner case, if the argument is null convert it into something countable such as bte */
4938 339 : if (subtype_cmp(exp_subtype(in), empty) == 0)
4939 20 : in = exp_convert(sql, in, empty, bte);
4940 339 : if ((is_lag || is_lead) && nfargs == 2) { /* lag and lead 3rd arg must have same type as 1st arg */
4941 10 : sql_exp *first = (sql_exp*) fargs->h->data;
4942 10 : if (!(in = exp_check_type(sql, exp_subtype(first), p, in, type_equal)))
4943 : return NULL;
4944 : }
4945 329 : if (!in)
4946 : return NULL;
4947 :
4948 339 : append(fargs, in);
4949 339 : in = exp_ref_save(sql, in);
4950 339 : nfargs++;
4951 : }
4952 : } else { /* aggregation function call */
4953 8493 : distinct = dn->next->data.i_val;
4954 22022 : for (dargs = dn->next->next->data.lval->h ; dargs && dargs->data.sym ; dargs = dargs->next) {
4955 13537 : exp_kind ek = {type_value, card_column, FALSE};
4956 13537 : sql_subtype *empty = sql_bind_localtype("void"), *bte = sql_bind_localtype("bte");
4957 :
4958 13537 : in = rel_value_exp2(query, &p, dargs->data.sym, f | sql_window | sql_farg, ek);
4959 13537 : if (!in)
4960 8 : return NULL;
4961 13530 : if (!exp_subtype(in)) { /* we also do not expect parameters here */
4962 1 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4963 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: parameters not allowed as arguments to window functions", toUpperCopy(uaname, aname));
4964 : }
4965 13529 : if (!exp_name(in))
4966 10112 : exp_label(sql->sa, in, ++sql->label);
4967 :
4968 : /* corner case, if the argument is null convert it into something countable such as bte */
4969 13529 : if (subtype_cmp(exp_subtype(in), empty) == 0)
4970 46 : in = exp_convert(sql, in, empty, bte);
4971 13529 : if (!in)
4972 : return NULL;
4973 :
4974 13529 : append(fargs, in);
4975 13529 : in = exp_ref_save(sql, in);
4976 13529 : nfargs++;
4977 :
4978 13529 : if (!strcmp(aname, "count"))
4979 86 : append(fargs, exp_atom_bool(sql->sa, 1)); /* ignore nills */
4980 : }
4981 :
4982 8485 : if (!nfargs) { /* count(*) */
4983 109 : if (window_function->token == SQL_AGGR && strcmp(aname, "count") != 0) {
4984 2 : char *uaname = SA_NEW_ARRAY(sql->ta, char, strlen(aname) + 1);
4985 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: unable to perform '%s(*)'", toUpperCopy(uaname, aname), aname);
4986 : }
4987 107 : sql_subfunc *star = sql_bind_func(sql, "sys", "star", NULL, NULL, F_FUNC, true, true);
4988 107 : in = exp_op(sql->sa, NULL, star);
4989 107 : append(fargs, in);
4990 107 : append(fargs, exp_atom_bool(sql->sa, 0)); /* don't ignore nills */
4991 : }
4992 : }
4993 :
4994 17897 : if (distinct)
4995 4 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: DISTINCT clause is not implemented for window functions");
4996 :
4997 : /* diff for partitions */
4998 17893 : if (gbe) {
4999 8191 : sql_subtype *bt = sql_bind_localtype("bit");
5000 :
5001 16412 : for( n = gbe->h; n; n = n->next) {
5002 8222 : sql_subfunc *df;
5003 8222 : sql_exp *e = n->data;
5004 :
5005 8222 : if (!exp_subtype(e))
5006 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: parameters not allowed at PARTITION BY clause from window functions");
5007 :
5008 8221 : e = exp_copy(sql, e);
5009 8221 : args = sa_list(sql->sa);
5010 8221 : if (pe) {
5011 31 : df = sql_bind_func(sql, "sys", "diff", bt, exp_subtype(e), F_ANALYTIC, true, true);
5012 31 : append(args, pe);
5013 : } else {
5014 8190 : df = sql_bind_func(sql, "sys", "diff", exp_subtype(e), NULL, F_ANALYTIC, true, true);
5015 : }
5016 8221 : if (!df)
5017 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: function 'diff' not found");
5018 8221 : append(args, e);
5019 8221 : pe = exp_op(sql->sa, args, df);
5020 : }
5021 : } else {
5022 9702 : pe = exp_atom_bool(sql->sa, 0);
5023 : }
5024 :
5025 : /* diff for orderby */
5026 17892 : if (obe) {
5027 8855 : sql_subtype *bt = sql_bind_localtype("bit");
5028 :
5029 17756 : for( n = obe->h; n; n = n->next) {
5030 8901 : sql_subfunc *df;
5031 8901 : sql_exp *e = n->data;
5032 :
5033 8901 : if (!exp_subtype(e))
5034 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: parameters not allowed at ORDER BY clause from window functions");
5035 :
5036 8901 : e = exp_copy(sql, e);
5037 8901 : args = sa_list(sql->sa);
5038 8901 : if (oe) {
5039 46 : df = sql_bind_func(sql, "sys", "diff", bt, exp_subtype(e), F_ANALYTIC, true, true);
5040 46 : append(args, oe);
5041 : } else {
5042 8855 : df = sql_bind_func(sql, "sys", "diff", exp_subtype(e), NULL, F_ANALYTIC, true, true);
5043 : }
5044 8901 : if (!df)
5045 0 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: function 'diff' not found");
5046 8901 : append(args, e);
5047 8901 : oe = exp_op(sql->sa, args, df);
5048 : }
5049 : } else {
5050 9037 : oe = exp_atom_bool(sql->sa, 0);
5051 : }
5052 :
5053 17892 : if (frame_clause || supports_frames) {
5054 8596 : if (frame_type == FRAME_RANGE)
5055 8285 : ie = obe ? (sql_exp*) obe->t->data : in;
5056 : else
5057 311 : ie = obe ? oe : in;
5058 : }
5059 17892 : assert(oe && pe);
5060 :
5061 17892 : types = exp_types(sql->sa, fargs);
5062 17892 : wf = bind_func_(sql, sname, aname, types, F_ANALYTIC, false, &found, false);
5063 17892 : if (wf && !list_empty(fargs) && !(fargs = check_arguments_and_find_largest_any_type(sql, NULL, fargs, wf, 0, false)))
5064 : wf = NULL;
5065 17887 : if (!wf) {
5066 5 : char *arg_list = nfargs ? nary_function_arg_types_2str(sql, types, nfargs) : NULL;
5067 10 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: %s window function %s%s%s'%s'(%s)",
5068 5 : found ? "insufficient privileges for" : "no such", sname ? "'":"", sname ? sname : "", sname ? "'.":"", aname, arg_list ? arg_list : "");
5069 : }
5070 :
5071 : /* Frame */
5072 17887 : if (frame_clause) {
5073 410 : dnode *d = frame_clause->data.lval->h;
5074 410 : symbol *wstart = d->data.sym, *wend = d->next->data.sym, *rstart = wstart->data.lval->h->data.sym,
5075 410 : *rend = wend->data.lval->h->data.sym;
5076 410 : int excl = d->next->next->next->data.i_val;
5077 410 : bool shortcut = false;
5078 :
5079 410 : if (!supports_frames)
5080 4 : return sql_error(sql, 02, SQLSTATE(42000) "OVER: frame extend only possible with aggregation and first_value, last_value and nth_value functions");
5081 406 : if (excl != EXCLUDE_NONE)
5082 0 : return sql_error(sql, 02, SQLSTATE(42000) "Only EXCLUDE NO OTHERS exclusion is currently implemented");
5083 406 : if (list_empty(obe) && frame_type == FRAME_GROUPS)
5084 2 : return sql_error(sql, 02, SQLSTATE(42000) "GROUPS frame requires an order by expression");
5085 404 : if (wstart->token == SQL_FOLLOWING && wend->token == SQL_PRECEDING)
5086 1 : return sql_error(sql, 02, SQLSTATE(42000) "FOLLOWING offset must come after PRECEDING offset");
5087 403 : if (wstart->token == SQL_CURRENT_ROW && wend->token == SQL_PRECEDING)
5088 1 : return sql_error(sql, 02, SQLSTATE(42000) "CURRENT ROW offset must come after PRECEDING offset");
5089 402 : if (wstart->token == SQL_FOLLOWING && wend->token == SQL_CURRENT_ROW)
5090 1 : return sql_error(sql, 02, SQLSTATE(42000) "FOLLOWING offset must come after CURRENT ROW offset");
5091 401 : if (wstart->token != SQL_CURRENT_ROW && wend->token != SQL_CURRENT_ROW && wstart->token == wend->token && frame_type != FRAME_ROWS)
5092 4 : return sql_error(sql, 02, SQLSTATE(42000) "Non-centered windows are only supported in row frames");
5093 367 : if (frame_type == FRAME_RANGE) {
5094 97 : if (((wstart->token == SQL_PRECEDING || wstart->token == SQL_FOLLOWING) && rstart->token != SQL_PRECEDING && rstart->token != SQL_CURRENT_ROW && rstart->token != SQL_FOLLOWING) ||
5095 59 : ((wend->token == SQL_PRECEDING || wend->token == SQL_FOLLOWING) && rend->token != SQL_PRECEDING && rend->token != SQL_CURRENT_ROW && rend->token != SQL_FOLLOWING)) {
5096 40 : if (list_empty(obe))
5097 2 : return sql_error(sql, 02, SQLSTATE(42000) "RANGE frame with PRECEDING/FOLLOWING offset requires an order by expression");
5098 38 : if (list_length(obe) > 1)
5099 0 : return sql_error(sql, 02, SQLSTATE(42000) "RANGE with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column");
5100 : }
5101 : }
5102 :
5103 395 : if (list_empty(obe) && frame_type == FRAME_RANGE) { /* window functions are weird */
5104 : frame_type = FRAME_ALL;
5105 : shortcut = true;
5106 383 : } else if (!is_value && (rstart->token == SQL_PRECEDING || rstart->token == SQL_CURRENT_ROW || rstart->token == SQL_FOLLOWING) && rstart->type == type_int &&
5107 150 : (rend->token == SQL_PRECEDING || rend->token == SQL_CURRENT_ROW || rend->token == SQL_FOLLOWING) && rend->type == type_int) {
5108 : /* special cases, don't calculate bounds */
5109 146 : if (frame_type != FRAME_ROWS && rstart->data.i_val == UNBOUNDED_PRECEDING_BOUND && rend->data.i_val == CURRENT_ROW_BOUND) {
5110 : frame_type = FRAME_UNBOUNDED_TILL_CURRENT_ROW;
5111 : shortcut = true;
5112 21 : } else if (frame_type != FRAME_ROWS && rstart->data.i_val == CURRENT_ROW_BOUND && rend->data.i_val == UNBOUNDED_FOLLOWING_BOUND) {
5113 : frame_type = FRAME_CURRENT_ROW_TILL_UNBOUNDED;
5114 : shortcut = true;
5115 86 : } else if (rstart->data.i_val == UNBOUNDED_PRECEDING_BOUND && rend->data.i_val == UNBOUNDED_FOLLOWING_BOUND) {
5116 : frame_type = FRAME_ALL;
5117 : shortcut = true;
5118 76 : } else if (rstart->data.i_val == CURRENT_ROW_BOUND && rend->data.i_val == CURRENT_ROW_BOUND) {
5119 395 : frame_type = FRAME_CURRENT_ROW;
5120 395 : shortcut = true;
5121 : }
5122 : }
5123 395 : if (!shortcut) {
5124 302 : if (!(fstart = calculate_window_bound(query, p, wstart->token, rstart, ie, frame_type, f | sql_window)))
5125 : return NULL;
5126 299 : if (!(fend = calculate_window_bound(query, p, wend->token, rend, ie, frame_type, f | sql_window)))
5127 : return NULL;
5128 471 : if (!generate_window_bound_call(sql, &start, &eend, gbe ? pe : NULL, ie, fstart, fend, frame_type, excl,
5129 : wstart->token, wend->token))
5130 : return NULL;
5131 : }
5132 17477 : } else if (supports_frames) { /* for analytic functions with no frame clause, we use the standard default values */
5133 8183 : if (is_value) {
5134 108 : sql_subtype *bound_tp = sql_bind_localtype("lng"), *bt = (frame_type == FRAME_ROWS || frame_type == FRAME_GROUPS) ? bound_tp : exp_subtype(ie);
5135 108 : unsigned char sclass = bt->type->eclass;
5136 :
5137 135 : fstart = exp_atom(sql->sa, atom_max_value(sql->sa, EC_NUMERIC(sclass) ? bt : bound_tp));
5138 108 : fend = order_by_clause ? exp_atom(sql->sa, atom_zero_value(sql->sa, EC_NUMERIC(sclass) ? bt : bound_tp)) :
5139 33 : exp_atom(sql->sa, atom_max_value(sql->sa, EC_NUMERIC(sclass) ? bt : bound_tp));
5140 :
5141 157 : if (generate_window_bound_call(sql, &start, &eend, gbe ? pe : NULL, ie, fstart, fend, frame_type, EXCLUDE_NONE, SQL_PRECEDING, SQL_FOLLOWING) == NULL)
5142 : return NULL;
5143 : } else {
5144 8075 : frame_type = list_empty(obe) ? FRAME_ALL : FRAME_UNBOUNDED_TILL_CURRENT_ROW;
5145 : }
5146 : }
5147 :
5148 17869 : args = sa_list(sql->sa);
5149 41217 : for (node *n = fargs->h ; n ; n = n->next)
5150 23348 : list_append(args, n->data);
5151 17869 : list_append(args, pe);
5152 17869 : list_append(args, oe);
5153 17869 : if (supports_frames) {
5154 8575 : list_append(args, exp_atom_int(sql->sa, frame_type));
5155 8575 : list_append(args, start ? start : exp_atom_oid(sql->sa, 1));
5156 8575 : list_append(args, eend ? eend : exp_atom_oid(sql->sa, 1));
5157 : }
5158 17869 : call = exp_rank_op(sql->sa, list_empty(args) ? NULL : args, gbe, obe, wf);
5159 17869 : *rel = p;
5160 17869 : return call;
5161 : }
5162 :
5163 : sql_exp *
5164 5742096 : rel_value_exp2(sql_query *query, sql_rel **rel, symbol *se, int f, exp_kind ek)
5165 : {
5166 5742096 : mvc *sql = query->sql;
5167 5742096 : if (!se)
5168 : return NULL;
5169 :
5170 5742096 : if (mvc_highwater(sql))
5171 19 : return sql_error(sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
5172 :
5173 5742080 : if (rel && *rel && (*rel)->card == CARD_AGGR) { /* group by expression case, handle it before */
5174 105569 : sql_exp *exp = NULL;
5175 105569 : if (!is_sql_aggr(f) && !is_sql_window(f))
5176 105111 : exp = frame_get_groupby_expression(sql, se);
5177 105569 : if (sql->errstr[0] != '\0')
5178 : return NULL;
5179 105569 : if (exp) {
5180 78 : sql_exp *res = exp_ref(sql, exp);
5181 78 : res->card = (*rel)->card;
5182 78 : if (se->token == SQL_AGGR) {
5183 0 : dlist *l = se->data.lval;
5184 0 : int distinct = l->h->next->data.i_val;
5185 0 : if (distinct)
5186 0 : set_distinct(res);
5187 : }
5188 78 : if (!query_has_outer(query) && is_groupby((*rel)->op))
5189 74 : res = rel_groupby_add_aggr(sql, *rel, res);
5190 78 : return res;
5191 : }
5192 : }
5193 :
5194 5742002 : switch (se->token) {
5195 1826 : case SQL_OP:
5196 1826 : return rel_op(query, rel, se, f, ek);
5197 77585 : case SQL_UNOP:
5198 77585 : return rel_unop(query, rel, se, f, ek);
5199 373833 : case SQL_BINOP:
5200 373833 : return rel_binop(query, rel, se, f, ek);
5201 84769 : case SQL_NOP:
5202 84769 : return rel_nop(query, rel, se, f, ek);
5203 18840 : case SQL_AGGR:
5204 18840 : return rel_aggr(query, rel, se, f);
5205 17947 : case SQL_WINDOW:
5206 17947 : return rel_rankop(query, rel, se, f);
5207 2314187 : case SQL_IDENT:
5208 : case SQL_COLUMN:
5209 2314187 : return rel_column_ref(query, rel, se, f );
5210 3007 : case SQL_NAME: {
5211 3007 : dlist *l = se->data.lval;
5212 3007 : const char *sname = qname_schema(l);
5213 3007 : const char *vname = qname_schema_object(l);
5214 3007 : return rel_exp_variable_on_scope(sql, sname, vname);
5215 : }
5216 48002 : case SQL_VALUES:
5217 : case SQL_WITH:
5218 : case SQL_SELECT: {
5219 48002 : sql_rel *r = NULL;
5220 :
5221 48002 : if (is_psm_call(f) || is_sql_merge(f))
5222 8 : return sql_error(sql, 02, SQLSTATE(42000) "%s: subqueries not supported inside %s", is_psm_call(f) ? "CALL" : "MERGE", is_psm_call(f) ? "CALL statements" : "MERGE conditions");
5223 47998 : if (rel && *rel)
5224 33975 : query_push_outer(query, *rel, f);
5225 47998 : if (se->token == SQL_WITH) {
5226 30 : r = rel_with_query(query, se);
5227 47968 : } else if (se->token == SQL_VALUES) {
5228 213 : r = rel_values(query, se, NULL);
5229 : } else {
5230 47755 : assert(se->token == SQL_SELECT);
5231 47755 : exp_kind nek = ek;
5232 47755 : nek.aggr = is_sql_aggr(f);
5233 47755 : if (is_sql_no_subquery(f))
5234 2 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery not allowed");
5235 :
5236 47753 : r = rel_subquery(query, se, nek);
5237 47753 : if (r)
5238 47653 : exps_label(sql, r->exps);
5239 : }
5240 47996 : if (rel && *rel) {
5241 33973 : *rel = query_pop_outer(query);
5242 33973 : if (is_sql_join(f) && is_groupby((*rel)->op)) {
5243 0 : return sql_error(sql, 05, SQLSTATE(42000) "SELECT: aggregate functions not allowed in JOIN conditions");
5244 33973 : } else if (is_sql_where(f) && is_groupby((*rel)->op)) {
5245 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in WHERE clause");
5246 33973 : } else if ((is_sql_update_set(f) || is_sql_psm(f)) && is_groupby((*rel)->op)) {
5247 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions not allowed in SET, WHILE, IF, ELSE, CASE, WHEN, RETURN, ANALYZE clauses");
5248 : }
5249 : }
5250 47996 : if (!r)
5251 : return NULL;
5252 47893 : if (ek.type == type_value && ek.card <= card_set && is_project(r->op) && list_length(r->exps) > 1)
5253 16 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery must return only one column");
5254 47877 : if (ek.type == type_relation && is_project(r->op) && list_length(r->exps) != ek.type)
5255 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery has too %s columns", list_length(r->exps) < ek.type ? "few" : "many");
5256 47877 : if (ek.type == type_value && list_length(r->exps) == 1 && !is_sql_psm(f)) /* for now don't rename multi attribute results */
5257 35720 : r = rel_zero_or_one(sql, r, ek);
5258 47877 : return exp_rel(sql, r);
5259 : }
5260 215 : case SQL_TABLE: {
5261 : /* turn a subquery into a tabular result */
5262 215 : *rel = rel_selects(query, se->data.sym);
5263 215 : if (*rel)
5264 213 : return lastexp(*rel);
5265 : return NULL;
5266 : }
5267 1612 : case SQL_PARAMETER: {
5268 1612 : assert(se->type == type_int);
5269 1612 : sql_arg *a = sql_bind_paramnr(sql, se->data.i_val);
5270 1612 : if (sql->emode != m_prepare) {
5271 1 : if (a && a->name && a->name[0])
5272 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: named placeholder ('%s') but named values list is missing", a->name);
5273 : else
5274 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: parameters ('?') not allowed in normal queries, use PREPARE");
5275 : }
5276 1611 : return exp_atom_ref(sql->sa, se->data.i_val, a?&a->type:NULL);
5277 : }
5278 105249 : case SQL_NULL:
5279 105249 : return exp_null(sql->sa, sql_bind_localtype("void"));
5280 1584 : case SQL_NEXT:
5281 1584 : return rel_next_value_for(sql, se);
5282 169014 : case SQL_CAST:
5283 169014 : return rel_cast(query, rel, se, f);
5284 104459 : case SQL_CASE:
5285 : case SQL_COALESCE:
5286 : case SQL_NULLIF:
5287 104459 : return rel_case_exp(query, rel, se, f);
5288 1 : case SQL_RANK:
5289 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: window function %s requires an OVER clause", qname_schema_object(se->data.lval->h->data.lval));
5290 25 : case SQL_XMLELEMENT:
5291 : case SQL_XMLFOREST:
5292 : case SQL_XMLCOMMENT:
5293 : case SQL_XMLATTRIBUTE:
5294 : case SQL_XMLCONCAT:
5295 : case SQL_XMLDOCUMENT:
5296 : case SQL_XMLPI:
5297 : case SQL_XMLTEXT:
5298 25 : return rel_xml(query, rel, se, f, ek);
5299 2419847 : default:
5300 2419847 : return rel_logical_value_exp(query, rel, se, f, ek);
5301 : }
5302 : }
5303 :
5304 : static int exps_has_rank(list *exps);
5305 :
5306 : static int
5307 : exp_has_rank(sql_exp *e)
5308 : {
5309 : switch(e->type) {
5310 : case e_convert:
5311 : return exp_has_rank(e->l);
5312 : case e_func:
5313 : if (e->r)
5314 : return 1;
5315 : /* fall through */
5316 : case e_aggr:
5317 : return exps_has_rank(e->l);
5318 : case e_cmp:
5319 : if (e->flag == cmp_or || e->flag == cmp_filter)
5320 : return exps_has_rank(e->l) || exps_has_rank(e->r);
5321 : if (e->flag == cmp_in || e->flag == cmp_notin)
5322 : return exp_has_rank(e->l) || exps_has_rank(e->r);
5323 : return exp_has_rank(e->l) || exp_has_rank(e->r) || (e->f && exp_has_rank(e->f));
5324 : default:
5325 : return 0;
5326 : }
5327 : }
5328 :
5329 : /* TODO create exps_has (list, fptr ) */
5330 : static int
5331 : exps_has_rank(list *exps)
5332 : {
5333 : if (!exps || list_empty(exps))
5334 : return 0;
5335 : for(node *n = exps->h; n; n=n->next){
5336 : sql_exp *e = n->data;
5337 :
5338 : if (exp_has_rank(e))
5339 : return 1;
5340 : }
5341 : return 0;
5342 : }
5343 :
5344 : sql_exp *
5345 4421501 : rel_value_exp(sql_query *query, sql_rel **rel, symbol *se, int f, exp_kind ek)
5346 : {
5347 4421501 : if (!se)
5348 : return NULL;
5349 :
5350 4421501 : if (mvc_highwater(query->sql))
5351 0 : return sql_error(query->sql, 10, SQLSTATE(42000) "Query too complex: running out of stack space");
5352 :
5353 4421503 : sql_exp *e = rel_value_exp2(query, rel, se, f, ek);
5354 4421491 : if (e && (se->token == SQL_SELECT || se->token == SQL_TABLE) && !exp_is_rel(e)) {
5355 0 : assert(*rel);
5356 0 : return rel_lastexp(query->sql, *rel);
5357 : }
5358 : return e;
5359 : }
5360 :
5361 : static sql_exp *
5362 1303564 : column_exp(sql_query *query, sql_rel **rel, symbol *column_e, int f)
5363 : {
5364 1303564 : dlist *l = column_e->data.lval;
5365 1303564 : exp_kind ek = {type_value, card_column, FALSE};
5366 1303564 : sql_exp *ve;
5367 :
5368 1303564 : if (f == sql_sel && rel && *rel && (*rel)->card < CARD_AGGR)
5369 82514 : ek.card = card_value;
5370 1303564 : ve = rel_value_exp(query, rel, l->h->data.sym, f, ek);
5371 1303556 : if (!ve)
5372 : return NULL;
5373 : /* AS name */
5374 1302449 : if (ve && l->h->next->data.sval)
5375 492690 : exp_setname(query->sql, ve, NULL, l->h->next->data.sval);
5376 : return ve;
5377 : }
5378 :
5379 : static int
5380 806576 : exp_is_not_intern(sql_exp *e)
5381 : {
5382 806576 : return is_intern(e)?-1:0;
5383 : }
5384 :
5385 : static void
5386 122241 : rel_remove_internal_exp(sql_rel *rel)
5387 : {
5388 122241 : if (rel->exps) {
5389 122241 : list *n_exps = list_select(rel->exps, rel, (fcmp)&exp_is_not_intern, (fdup)NULL);
5390 :
5391 122241 : rel->exps = n_exps;
5392 : }
5393 122241 : }
5394 :
5395 : static inline int
5396 16 : exp_key(sql_exp *e)
5397 : {
5398 16 : if (e->alias.name)
5399 16 : return hash_key(e->alias.name);
5400 : return 0;
5401 : }
5402 :
5403 : static list *
5404 5 : group_merge_exps(mvc *sql, list *gexps, list *exps)
5405 : {
5406 5 : int nexps = list_length(gexps) + list_length(exps);
5407 :
5408 5 : sql_hash *ht = hash_new(sql->ta, nexps, (fkeyvalue)&exp_key);
5409 :
5410 9 : for (node *n = gexps->h; n ; n = n->next) { /* first add grouping expressions */
5411 4 : sql_exp *e = n->data;
5412 4 : int key = ht->key(e);
5413 :
5414 4 : hash_add(ht, key, e);
5415 : }
5416 :
5417 17 : for (node *n = exps->h; n ; n = n->next) { /* then test if the new grouping expressions are already there */
5418 12 : sql_exp *e = n->data;
5419 12 : int key = ht->key(e);
5420 12 : sql_hash_e *he = ht->buckets[key&(ht->size-1)];
5421 12 : bool duplicates = false;
5422 :
5423 16 : for (; he && !duplicates; he = he->chain) {
5424 4 : sql_exp *f = he->value;
5425 :
5426 4 : if (!exp_equal(e, f))
5427 4 : duplicates = true;
5428 : }
5429 12 : hash_add(ht, key, e);
5430 12 : if (!duplicates) {
5431 8 : list_append(gexps, e);
5432 8 : n->data = exp_ref(sql, e);
5433 : }
5434 : }
5435 5 : return gexps;
5436 : }
5437 :
5438 : static list *
5439 57924 : rel_table_exp(sql_query *query, sql_rel **rel, symbol *column_e, bool single_exp )
5440 : {
5441 57924 : mvc *sql = query->sql;
5442 57924 : if (column_e->token == SQL_TABLE && column_e->data.lval->h->type == type_symbol) {
5443 0 : sql_rel *r;
5444 :
5445 0 : if (!is_project((*rel)->op))
5446 : return NULL;
5447 0 : r = rel_named_table_function(query, (*rel)->l, column_e, 0, NULL);
5448 0 : if (!r)
5449 : return NULL;
5450 0 : *rel = r;
5451 0 : return sa_list(sql->sa);
5452 57924 : } else if (column_e->token == SQL_TABLE) {
5453 56817 : char *tname = column_e->data.lval->h->data.sval;
5454 56817 : list *exps = NULL;
5455 56817 : sql_rel *project = *rel, *groupby = NULL;
5456 :
5457 : /* if there's a group by relation in the tree, skip it for the '*' case and use the underlying projection */
5458 56817 : if (project) {
5459 66153 : while (is_groupby(project->op) || is_select(project->op)) {
5460 9336 : if (is_groupby(project->op))
5461 5 : groupby = project;
5462 9336 : if (project->l)
5463 9336 : project = project->l;
5464 : }
5465 : assert(project);
5466 : }
5467 :
5468 56817 : if (project->op == op_project && project->l && project == *rel && !tname && !rel_is_ref(project) && !need_distinct(project) && single_exp) {
5469 410 : sql_rel *l = project->l;
5470 410 : if (!l || !is_project(l->op) || list_length(project->exps) == list_length(l->exps)) {
5471 403 : rel_remove_internal_exp(*rel);
5472 403 : exps = project->exps;
5473 403 : *rel = project->l;
5474 : }
5475 : }
5476 56817 : if ((exps || (exps = rel_table_projections(sql, project, tname, 0)) != NULL) && !list_empty(exps)) {
5477 56813 : if (!(exps = check_distinct_exp_names(sql, exps)))
5478 0 : return sql_error(sql, 02, SQLSTATE(42000) "Duplicate column names in table%s%s%s projection list", tname ? " '" : "", tname ? tname : "", tname ? "'" : "");
5479 56813 : if (groupby) {
5480 5 : groupby->exps = group_merge_exps(sql, groupby->exps, exps);
5481 9 : for (node *n = groupby->exps->h ; n ; n = n->next) {
5482 8 : sql_exp *e = n->data;
5483 :
5484 8 : if (e->card > groupby->card) {
5485 4 : if (exp_name(e) && !has_label(e))
5486 4 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(e));
5487 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
5488 : }
5489 : }
5490 : }
5491 56809 : return exps;
5492 : }
5493 4 : if (!tname)
5494 2 : return sql_error(sql, 02, SQLSTATE(42000) "Table expression without table name");
5495 2 : return sql_error(sql, 02, SQLSTATE(42000) "Column expression Table '%s' unknown", tname);
5496 : }
5497 : return NULL;
5498 : }
5499 :
5500 : sql_exp *
5501 1360381 : rel_column_exp(sql_query *query, sql_rel **rel, symbol *column_e, int f)
5502 : {
5503 1360381 : if (column_e->token == SQL_COLUMN || column_e->token == SQL_IDENT)
5504 1303564 : return column_exp(query, rel, column_e, f);
5505 : return NULL;
5506 : }
5507 :
5508 : static sql_rel*
5509 368249 : rel_where_groupby_nodes(sql_query *query, sql_rel *rel, SelectNode *sn, int *group_totals)
5510 : {
5511 368249 : mvc *sql = query->sql;
5512 :
5513 368249 : if (sn->where) {
5514 144409 : rel = rel_logical_exp(query, rel, sn->where, sql_where);
5515 144409 : if (!rel) {
5516 72 : if (sql->errstr[0] == 0)
5517 0 : return sql_error(sql, 02, SQLSTATE(42000) "Subquery result missing");
5518 : return NULL;
5519 : }
5520 : }
5521 368177 : query_processed(query);
5522 :
5523 368176 : if (rel && sn->groupby) {
5524 9770 : list *gbe = NULL, *sets = NULL;
5525 9770 : int all = 0;
5526 9770 : if (sn->groupby->data.lval == NULL) { /* ALL */
5527 : all = 1;
5528 : } else {
5529 33104 : for (dnode *o = sn->groupby->data.lval->h; o ; o = o->next) {
5530 23461 : symbol *grouping = o->data.sym;
5531 23461 : if (grouping->token == SQL_ROLLUP || grouping->token == SQL_CUBE || grouping->token == SQL_GROUPING_SETS) {
5532 119 : *group_totals |= sql_group_totals;
5533 119 : break;
5534 : }
5535 : }
5536 9762 : gbe = rel_groupings(query, &rel, sn->groupby, sn->selection, sql_sel | sql_groupby | *group_totals, false, &sets);
5537 9762 : if (!gbe)
5538 19 : return NULL;
5539 : }
5540 9751 : rel = rel_groupby(sql, rel, gbe);
5541 9751 : if (rel && all)
5542 8 : rel->flag = 2;
5543 9751 : if (sets && list_length(sets) > 1) { /* if there is only one combination, there is no reason to generate unions */
5544 114 : prop *p = prop_create(sql->sa, PROP_GROUPINGS, rel->p);
5545 114 : p->value.pval = sets;
5546 114 : rel->p = p;
5547 : }
5548 : }
5549 :
5550 368157 : if (rel && sn->having) {
5551 : /* having implies group by, ie if not supplied do a group by */
5552 1764 : if (rel->op != op_groupby)
5553 128 : rel = rel_groupby(sql, rel, NULL);
5554 : }
5555 368157 : query_processed(query);
5556 368157 : return rel;
5557 : }
5558 :
5559 : static sql_rel*
5560 367026 : rel_having_limits_nodes(sql_query *query, sql_rel *rel, SelectNode *sn, exp_kind ek, int group_totals)
5561 : {
5562 367026 : mvc *sql = query->sql;
5563 367026 : sql_rel *inner = NULL;
5564 367026 : int single_value = 1;
5565 :
5566 367026 : if (is_project(rel->op) && rel->l) {
5567 367026 : inner = rel->l;
5568 367026 : single_value = 0;
5569 : }
5570 :
5571 367026 : if (sn->having) {
5572 1752 : if (inner && is_groupby(inner->op))
5573 1752 : set_processed(inner);
5574 1752 : if (!(inner = rel_logical_exp(query, inner, sn->having, sql_having | group_totals)))
5575 : return NULL;
5576 1713 : if (inner->exps && exps_card(inner->exps) > CARD_AGGR)
5577 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: cannot compare sets with values, probably an aggregate function missing");
5578 1713 : if (!single_value)
5579 1713 : rel->l = inner;
5580 : }
5581 :
5582 366987 : if (rel && sn->distinct)
5583 1027 : rel = rel_distinct(rel);
5584 :
5585 366987 : if (rel && sn->orderby) {
5586 36512 : list *obe = NULL;
5587 36512 : sql_rel *sel = NULL, *l = rel->l;
5588 :
5589 : /* project( select ) */
5590 36512 : if (sn->having && is_select(l->op)) {
5591 52 : sel = l;
5592 52 : rel->l = l->l;
5593 : }
5594 36512 : rel = rel_orderby(sql, rel);
5595 36512 : set_processed(rel);
5596 36512 : obe = rel_order_by(query, &rel, sn->orderby, sn->distinct, sql_orderby | group_totals);
5597 36512 : if (!obe)
5598 : return NULL;
5599 36472 : rel->r = obe;
5600 36472 : if (sel) {
5601 51 : sql_rel *o = rel, *p = o->l;
5602 51 : p->l = sel;
5603 : }
5604 : }
5605 366947 : if (!rel)
5606 : return NULL;
5607 :
5608 366947 : if (sn->limit || sn->offset) {
5609 16498 : sql_subtype *lng = sql_bind_localtype("lng");
5610 16499 : list *exps = new_exp_list(sql->sa);
5611 :
5612 16499 : if (sn->limit) {
5613 16469 : sql_exp *l = rel_value_exp(query, NULL, sn->limit, 0, ek);
5614 :
5615 16468 : if (!l || !(l=exp_check_type(sql, lng, NULL, l, type_equal)))
5616 0 : return NULL;
5617 16468 : if ((ek.card != card_relation && sn->limit) &&
5618 : (ek.card == card_value && sn->limit)) {
5619 11 : sql_subfunc *zero_or_one = sql_bind_func(sql, "sys", "zero_or_one", exp_subtype(l), NULL, F_AGGR, true, true);
5620 11 : l = exp_aggr1(sql->sa, l, zero_or_one, 0, 0, CARD_ATOM, has_nil(l));
5621 : }
5622 16468 : list_append(exps, l);
5623 : } else
5624 30 : list_append(exps, exp_atom(sql->sa, atom_general(sql->sa, lng, NULL, 0)));
5625 16498 : if (sn->offset) {
5626 97 : sql_exp *o = rel_value_exp( query, NULL, sn->offset, 0, ek);
5627 97 : if (!o || !(o=exp_check_type(sql, lng, NULL, o, type_equal)))
5628 0 : return NULL;
5629 97 : list_append(exps, o);
5630 : }
5631 16498 : rel = rel_topn(sql->sa, rel, exps);
5632 : }
5633 :
5634 366947 : if (sn->sample || sn->seed) {
5635 17 : list *exps = new_exp_list(sql->sa);
5636 :
5637 24 : if (sn->sample) {
5638 23 : sql_exp *s = rel_value_exp(query, NULL, sn->sample, 0, ek);
5639 23 : if (!s)
5640 : return NULL;
5641 23 : if (!exp_subtype(s) && rel_set_type_param(sql, sql_bind_localtype("lng"), NULL, s, 0) < 0)
5642 : return NULL;
5643 23 : list_append(exps, s);
5644 : } else {
5645 1 : assert(sn->seed);
5646 1 : return sql_error(sql, 02, SQLSTATE(42000) "SEED: cannot have SEED without SAMPLE");
5647 : }
5648 23 : if (sn->seed) {
5649 12 : sql_exp *e = rel_value_exp(query, NULL, sn->seed, 0, ek);
5650 12 : if (!e || !(e=exp_check_type(sql, sql_bind_localtype("int"), NULL, e, type_equal)))
5651 0 : return NULL;
5652 12 : list_append(exps, e);
5653 : }
5654 23 : rel = rel_sample(sql->sa, rel, exps);
5655 : }
5656 :
5657 : /* after parsing the current query, set the group by relation as processed */
5658 366953 : if (!sn->having && inner && is_groupby(inner->op))
5659 28374 : set_processed(inner);
5660 366953 : if (rel)
5661 366953 : set_processed(rel);
5662 : return rel;
5663 : }
5664 :
5665 : static sql_rel *
5666 60 : join_on_column_name(sql_query *query, sql_rel *rel, sql_rel *t1, sql_rel *t2, int op, int l_nil, int r_nil)
5667 : {
5668 60 : mvc *sql = query->sql;
5669 60 : int found = 0, full = (op == op_full), right = (op == op_right);
5670 60 : list *exps = rel_projections(sql, t1, NULL, 1, 0);
5671 60 : list *r_exps = rel_projections(sql, t2, NULL, 1, 0);
5672 60 : list *outexps = new_exp_list(sql->sa);
5673 :
5674 60 : if (!exps || !r_exps)
5675 : return NULL;
5676 236 : for (node *n = exps->h; n; n = n->next) {
5677 179 : sql_exp *le = n->data;
5678 179 : int multi = 0;
5679 179 : const char *rname = exp_relname(le), *name = exp_name(le);
5680 179 : sql_exp *re = exps_bind_column(r_exps, name, NULL, &multi, 0);
5681 :
5682 179 : if (re) {
5683 136 : if (multi)
5684 3 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "NATURAL JOIN: common column name '%s' appears more than once in right table", rname);
5685 134 : multi = 0;
5686 134 : le = exps_bind_column(exps, name, NULL, &multi, 0);
5687 134 : if (multi)
5688 0 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "NATURAL JOIN: common column name '%s' appears more than once in left table", rname);
5689 :
5690 134 : found = 1;
5691 134 : if (!(rel = rel_compare_exp(query, rel, le, re, "=", TRUE, 0, 0, 0, 0)))
5692 : return NULL;
5693 133 : list_remove_data(r_exps, NULL, re);
5694 133 : if (full) {
5695 12 : sql_exp *cond = rel_unop_(sql, rel, le, "sys", "isnull", card_value);
5696 12 : if (!cond)
5697 : return NULL;
5698 12 : set_has_no_nil(cond);
5699 12 : if (rel_convert_types(sql, NULL, NULL, &le, &re, 1, type_equal_no_any) < 0)
5700 : return NULL;
5701 12 : if (!(le = rel_nop_(sql, rel, cond, re, le, NULL, "sys", "ifthenelse", card_value)))
5702 : return NULL;
5703 121 : } else if (right) {
5704 3 : le = re;
5705 : }
5706 133 : exp_setname(sql, le, rname, name);
5707 133 : set_not_unique(le);
5708 133 : append(outexps, le);
5709 : } else {
5710 43 : if (l_nil)
5711 5 : set_has_nil(le);
5712 43 : set_not_unique(le);
5713 43 : append(outexps, le);
5714 : }
5715 : }
5716 57 : if (!found)
5717 2 : return sql_error(sql, 02, SQLSTATE(42000) "JOIN: no columns of tables '%s' and '%s' match", rel_name(t1)?rel_name(t1):"", rel_name(t2)?rel_name(t2):"");
5718 86 : for (node *n = r_exps->h; n; n = n->next) {
5719 31 : sql_exp *re = n->data;
5720 31 : if (r_nil)
5721 3 : set_has_nil(re);
5722 31 : set_not_unique(re);
5723 31 : append(outexps, re);
5724 : }
5725 55 : rel = rel_project(sql->sa, rel, outexps);
5726 55 : return rel;
5727 : }
5728 :
5729 : static sql_rel *
5730 368253 : rel_select_exp(sql_query *query, sql_rel *rel, SelectNode *sn, exp_kind ek)
5731 : {
5732 368253 : mvc *sql = query->sql;
5733 368253 : sql_rel *inner = NULL;
5734 368253 : int group_totals = 0;
5735 368253 : list *pexps = NULL;
5736 :
5737 368253 : assert(sn->s.token == SQL_SELECT);
5738 368253 : if (!sn->selection)
5739 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: the selection or from part is missing");
5740 :
5741 368253 : if (!rel)
5742 72552 : rel = rel_project_exp(sql, exp_atom_bool(sql->sa, 1));
5743 368250 : rel = rel_where_groupby_nodes(query, rel, sn, &group_totals);
5744 368248 : if (sql->session->status) /* rel might be NULL as input, so we have to check for the session status for errors */
5745 : return NULL;
5746 :
5747 368157 : inner = rel;
5748 368157 : pexps = sa_list(sql->sa);
5749 1727410 : for (dnode *n = sn->selection->h; n; n = n->next) {
5750 : /* Here we could get real column expressions
5751 : * (including single atoms) but also table results.
5752 : * Therefore we try both rel_column_exp
5753 : * and rel_table_exp.
5754 : */
5755 1360376 : list *te = NULL;
5756 2720694 : sql_exp *ce = rel_column_exp(query, &inner, n->data.sym, sql_sel | group_totals | (ek.aggr?sql_aggr:0));
5757 :
5758 1360374 : if (ce) {
5759 1302450 : if (inner && inner->flag && is_groupby(inner->op)) {
5760 62 : int found = 0;
5761 62 : list *gbe = inner->r;
5762 : /* flag == 2 just add to group by/ aggrs and ref-to pexps*/
5763 : /* flag == 1 find group by exp referencing this column nr */
5764 62 : if (inner->flag == 2) {
5765 25 : if (ce->card > CARD_AGGR) {
5766 9 : if (!gbe)
5767 8 : inner->r = gbe = sa_list(sql->sa);
5768 9 : append(gbe, ce);
5769 9 : ce = exp_ref(sql, ce);
5770 9 : ce->card = CARD_AGGR;
5771 9 : list_append(inner->exps, ce);
5772 9 : ce = exp_ref(sql, ce);
5773 9 : found = 1;
5774 : }
5775 : } else {
5776 81 : for(node *n = gbe->h; n && !found; n = n->next) {
5777 44 : sql_exp *e = n->data;
5778 44 : if (is_atom(e->type) && !e->alias.name) {
5779 29 : atom *a = e->l;
5780 29 : int nr = (int)atom_get_int(a);
5781 29 : if (nr == (list_length(pexps) + 1)) {
5782 27 : n->data = ce;
5783 27 : ce = exp_ref(sql, ce);
5784 27 : ce->card = CARD_AGGR;
5785 27 : list_append(inner->exps, ce);
5786 27 : ce = exp_ref(sql, ce);
5787 27 : found = 1;
5788 : }
5789 : }
5790 : }
5791 : }
5792 : }
5793 1302450 : pexps = append(pexps, ce);
5794 1302448 : rel = inner;
5795 1302448 : continue;
5796 : } else {
5797 62927 : te = rel_table_exp(query, &rel, n->data.sym, !list_length(pexps) && !n->next);
5798 : }
5799 57924 : if (!ce && !te) {
5800 1115 : if (sql->errstr[0])
5801 : return NULL;
5802 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: subquery result missing");
5803 : }
5804 : /* here we should merge the column expressions we
5805 : * obtained so far with the table expression, ie
5806 : * t1.* or a subquery.
5807 : */
5808 56809 : pexps = list_merge(pexps, te, (fdup)NULL);
5809 : }
5810 367034 : if (rel && is_groupby(rel->op) && rel->flag) {
5811 34 : list *gbe = rel->r;
5812 34 : if (!list_empty(gbe)) {
5813 68 : for (node *n=gbe->h; n; n = n->next) {
5814 37 : sql_exp *e = n->data;
5815 37 : if (rel->flag == 1 && is_atom(e->type) && !e->alias.name) {
5816 1 : atom *a = e->l;
5817 1 : int nr = (int)atom_get_int(a);
5818 1 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: GROUP BY position %d is not in select list", nr);
5819 : }
5820 36 : if (exp_has_aggr(rel, e))
5821 2 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: aggregate functions are not allowed in GROUP BY");
5822 : }
5823 : }
5824 : }
5825 367031 : if (rel && is_groupby(rel->op) && (!sn->groupby || rel->flag) && !is_processed(rel)) {
5826 42002 : for (node *n=pexps->h; n; n = n->next) {
5827 21522 : sql_exp *ce = n->data;
5828 21522 : if (rel->card < ce->card && !exp_is_aggr(rel, ce)) {
5829 0 : if (exp_name(ce) && !has_label(ce))
5830 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column '%s' in query results without an aggregate function", exp_name(ce));
5831 0 : return sql_error(sql, ERR_GROUPBY, SQLSTATE(42000) "SELECT: cannot use non GROUP BY column in query results without an aggregate function");
5832 : }
5833 : }
5834 20480 : set_processed(rel);
5835 : }
5836 367031 : rel = rel_project(sql->sa, rel, pexps);
5837 :
5838 367026 : rel = rel_having_limits_nodes(query, rel, sn, ek, group_totals);
5839 367026 : return rel;
5840 : }
5841 :
5842 : static sql_rel*
5843 121790 : rel_unique_names(mvc *sql, sql_rel *rel)
5844 : {
5845 121790 : list *l;
5846 :
5847 121790 : if (!is_project(rel->op))
5848 : return rel;
5849 121790 : l = sa_list(sql->sa);
5850 925914 : for (node *n = rel->exps->h; n; n = n->next) {
5851 804124 : sql_exp *e = n->data;
5852 804124 : const char *name = exp_name(e);
5853 :
5854 : /* If there are two identical expression names, there will be ambiguity */
5855 804124 : if (!name || exps_bind_column(l, name, NULL, NULL, 0))
5856 55459 : exp_label(sql->sa, e, ++sql->label);
5857 804124 : append(l,e);
5858 : }
5859 121790 : rel->exps = l;
5860 121790 : return rel;
5861 : }
5862 :
5863 : static sql_rel *
5864 368545 : rel_query(sql_query *query, symbol *sq, exp_kind ek)
5865 : {
5866 368545 : mvc *sql = query->sql;
5867 368545 : sql_rel *res = NULL;
5868 368545 : SelectNode *sn = NULL;
5869 :
5870 368545 : if (sq->token != SQL_SELECT)
5871 22 : return table_ref(query, sq, 0, NULL);
5872 :
5873 : /* select ... into is currently not handled here ! */
5874 368523 : sn = (SelectNode *) sq;
5875 368523 : if (sn->into)
5876 : return NULL;
5877 :
5878 368523 : if (ek.card != card_relation && sn->orderby)
5879 0 : return sql_error(sql, 01, SQLSTATE(42000) "SELECT: ORDER BY only allowed on outermost SELECT");
5880 :
5881 368523 : if (sn->window) {
5882 20 : dlist *wl = sn->window->data.lval;
5883 51 : for (dnode *n = wl->h; n ; n = n->next) {
5884 32 : dlist *wd = n->data.sym->data.lval;
5885 32 : const char *name = wd->h->data.sval;
5886 32 : dlist *wdef = wd->h->next->data.lval;
5887 32 : if (frame_get_window_def(sql, name, NULL)) {
5888 1 : return sql_error(sql, 01, SQLSTATE(42000) "SELECT: Redefinition of window '%s'", name);
5889 31 : } else if (!frame_push_window_def(sql, name, wdef)) {
5890 0 : return sql_error(sql, 02, SQLSTATE(HY013) MAL_MALLOC_FAIL);
5891 : }
5892 : }
5893 : }
5894 :
5895 368522 : if (sn->from) {
5896 295971 : dlist *fl = sn->from->data.lval;
5897 295971 : sql_rel *fnd = NULL;
5898 295971 : list *refs = new_exp_list(sql->sa); /* Keep list of relation names in order to test for duplicates */
5899 :
5900 733597 : for (dnode *n = fl->h; n ; n = n->next) {
5901 437896 : int lateral = check_is_lateral(n->data.sym);
5902 :
5903 : /* just used current expression */
5904 437896 : if (lateral && res)
5905 11 : query_push_outer(query, res, sql_from);
5906 437896 : fnd = table_ref(query, n->data.sym, lateral, refs);
5907 437896 : if (lateral && res)
5908 11 : res = query_pop_outer(query);
5909 437896 : if (!fnd)
5910 : break;
5911 437626 : if (res) {
5912 141911 : res = rel_crossproduct(sql->sa, res, fnd, op_join);
5913 141911 : if (lateral)
5914 11 : set_dependent(res);
5915 : } else {
5916 : res = fnd;
5917 : }
5918 : }
5919 295971 : if (!fnd) {
5920 270 : if (res)
5921 14 : rel_destroy(res);
5922 270 : return NULL;
5923 : }
5924 72551 : } else if (!query_has_outer(query) || !res) {/* only on top level query */
5925 72552 : return rel_select_exp(query, NULL, sn, ek);
5926 : }
5927 :
5928 295701 : sql_rel *rel = NULL;
5929 295701 : if (res)
5930 295701 : rel = rel_select_exp(query, res, sn, ek);
5931 295701 : if (!rel && res)
5932 1047 : rel_destroy(res);
5933 : return rel;
5934 : }
5935 :
5936 : /* NOTE: does NOT "set" query but instead generate set ops (union, except, intersect) */
5937 : static sql_rel *
5938 23 : rel_setquery_corresponding(sql_query *query, sql_rel *l, sql_rel *r, dlist *cols, int op, int outer, bool n_ary_op)
5939 : {
5940 23 : mvc *sql = query->sql;
5941 23 : const char *opname = op==SQL_EXCEPT?"EXCEPT":op==SQL_INTERSECT?"INTERSECT":outer?"OUTER UNION":"UNION";
5942 23 : list *lexps = sa_list(query->sql->sa), *rexps = sa_list(query->sql->sa);
5943 23 : if (!lexps || !rexps)
5944 : return NULL;
5945 23 : assert(cols);
5946 23 : if (dlist_length(cols)) {
5947 22 : for (dnode *dn = cols->h; dn; dn = dn ->next) {
5948 13 : char *nm = dn->data.sym->data.lval->h->data.sval;
5949 13 : sql_exp *ls, *rs;
5950 :
5951 13 : if (!(ls = rel_bind_column(sql, l, nm, sql_where | sql_join, 0)) && sql->session->status == -ERR_AMBIGUOUS)
5952 : return NULL;
5953 13 : if (!(rs = rel_bind_column(sql, r, nm, sql_where | sql_join, 0)) && sql->session->status == -ERR_AMBIGUOUS)
5954 : return NULL;
5955 13 : if ((!outer && (!ls || !rs)) || (outer && !ls && !rs))
5956 2 : return sql_error(sql, 02, SQLSTATE(42000) "%s: tables '%s' and '%s' do not have a matching column '%s'", opname, rel_name(l)?rel_name(l):"", rel_name(r)?rel_name(r):"", nm);
5957 11 : if (outer && !ls)
5958 4 : ls = exp_null(sql->sa, exp_subtype(rs));
5959 11 : if (outer && !rs)
5960 4 : rs = exp_null(sql->sa, exp_subtype(ls));
5961 11 : append(lexps, ls);
5962 11 : append(rexps, rs);
5963 : }
5964 : } else {
5965 12 : int found = 0;
5966 12 : list *exps = rel_projections(sql, l, NULL, 1, 0), *r_exps = rel_projections(sql, r, NULL, 1, 0);
5967 12 : if (!exps || !r_exps)
5968 : return NULL;
5969 : /* find cols which exist on both sides */
5970 35 : for (node *n = exps->h; n; n = n->next) {
5971 23 : sql_exp *le = n->data;
5972 23 : int multi = 0;
5973 23 : const char *rname = exp_relname(le), *name = exp_name(le);
5974 23 : sql_exp *re = exps_bind_column(r_exps, name, NULL, &multi, 0);
5975 23 : if (re) {
5976 13 : if (multi)
5977 0 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "%s: common column name '%s' appears more than once in right table", opname, rname);
5978 13 : multi = 0;
5979 13 : le = exps_bind_column(exps, name, NULL, &multi, 0);
5980 13 : if (multi)
5981 0 : return sql_error(sql, ERR_AMBIGUOUS, SQLSTATE(42000) "%s: common column name '%s' appears more than once in left table", opname, rname);
5982 :
5983 13 : found = 1;
5984 13 : append(lexps, le);
5985 13 : append(rexps, re);
5986 13 : list_remove_data(r_exps, NULL, re);
5987 10 : } else if (outer) {
5988 3 : append(lexps, le);
5989 3 : re = exp_null(sql->sa, exp_subtype(le));
5990 3 : append(rexps, re); /* nils */
5991 : }
5992 : }
5993 12 : if (!found)
5994 0 : return sql_error(sql, 02, SQLSTATE(42000) "%s: no columns of tables '%s' and '%s' match", opname, rel_name(l)?rel_name(l):"", rel_name(r)?rel_name(r):"");
5995 12 : if (outer) {
5996 7 : for (node *n = r_exps->h; n; n = n->next) {
5997 4 : sql_exp *re = n->data, *le;
5998 4 : append(rexps, re);
5999 4 : le = exp_null(sql->sa, exp_subtype(re));
6000 4 : append(lexps, le); /* nils */
6001 : }
6002 : }
6003 : }
6004 21 : return n_ary_op ?
6005 21 : rel_setop_n_ary_check_types(sql, l, r, lexps, rexps, (operator_type)op) :
6006 2 : rel_setop_check_types(sql, l, r, lexps, rexps, (operator_type)op);
6007 : }
6008 :
6009 : static sql_rel *
6010 2481 : rel_setquery_(sql_query *query, sql_rel *l, sql_rel *r, dlist *cols, int op, int outer)
6011 : {
6012 2481 : mvc *sql = query->sql;
6013 2481 : sql_rel *rel;
6014 :
6015 2481 : if (outer && !cols)
6016 0 : return sql_error(sql, 02, SQLSTATE(42000) "UNION: OUTER needs to be combined with CORRESPONDING [ BY ( column list ) ]");
6017 2481 : if (!cols) {
6018 2479 : list *ls, *rs;
6019 :
6020 2479 : l = rel_unique_names(sql, l);
6021 2479 : r = rel_unique_names(sql, r);
6022 2479 : ls = rel_projections(sql, l, NULL, 0, 1);
6023 2479 : rs = rel_projections(sql, r, NULL, 0, 1);
6024 2479 : rel = rel_setop_check_types(sql, l, r, ls, rs, (operator_type)op);
6025 : } else {
6026 2 : rel = rel_setquery_corresponding(query, l, r, cols, op, outer, false);
6027 : }
6028 2481 : if (rel) {
6029 2478 : rel_setop_set_exps(sql, rel, rel_projections(sql, rel, NULL, 0, 1), false);
6030 2478 : set_processed(rel);
6031 : }
6032 : return rel;
6033 : }
6034 :
6035 : /* Generate n-ary set operator */
6036 : static sql_rel *
6037 58437 : rel_setquery_n_ary_(sql_query *query, sql_rel *l, sql_rel *r, dlist *cols, int op, int outer)
6038 : {
6039 : /* even though this is for a general n-ary operators in this phase of the query
6040 : * processing we gonna have only two operands (so technically it's binary). In
6041 : * general this op supports arbitrary number of operands.
6042 : */
6043 : // TODO: for now we support only multi-union
6044 58437 : assert(op == op_munion);
6045 :
6046 58437 : mvc *sql = query->sql;
6047 58437 : sql_rel *rel;
6048 :
6049 58437 : if (outer && !cols)
6050 0 : return sql_error(sql, 02, SQLSTATE(42000) "UNION: OUTER needs to be combined with CORRESPONDING [ BY ( column list ) ]");
6051 58437 : if (!cols) {
6052 : // TODO: make rel_setop_n_ary_check_types to accept a list of rels
6053 : // and a list of lists of exps
6054 58416 : list *ls, *rs;
6055 :
6056 58416 : l = rel_unique_names(sql, l);
6057 58416 : r = rel_unique_names(sql, r);
6058 58416 : ls = rel_projections(sql, l, NULL, 0, 1);
6059 58416 : rs = rel_projections(sql, r, NULL, 0, 1);
6060 58416 : rel = rel_setop_n_ary_check_types(sql, l, r, ls, rs, (operator_type)op);
6061 : } else {
6062 21 : rel = rel_setquery_corresponding(query, l, r, cols, op, outer, true);
6063 : }
6064 :
6065 58437 : if (rel) {
6066 58431 : rel_setop_n_ary_set_exps(sql, rel, rel_projections(sql, rel, NULL, 0, 1), false);
6067 58431 : set_processed(rel);
6068 : }
6069 :
6070 : return rel;
6071 :
6072 : }
6073 :
6074 : static sql_rel *
6075 60923 : rel_setquery(sql_query *query, symbol *q)
6076 : {
6077 60923 : mvc *sql = query->sql;
6078 60923 : sql_rel *res = NULL;
6079 60923 : dnode *n = q->data.lval->h;
6080 60923 : symbol *tab_ref1 = n->data.sym;
6081 60923 : int distinct = n->next->data.i_val;
6082 60923 : dlist *corresponding = n->next->next->data.lval;
6083 60923 : symbol *tab_ref2 = n->next->next->next->data.sym;
6084 60923 : sql_rel *t1, *t2;
6085 :
6086 60923 : assert(n->next->type == type_int);
6087 60923 : t1 = table_ref(query, tab_ref1, 0, NULL);
6088 60923 : if (!t1)
6089 : return NULL;
6090 60921 : t2 = table_ref(query, tab_ref2, 0, NULL);
6091 60921 : if (!t2)
6092 : return NULL;
6093 :
6094 60919 : rel_remove_internal_exp(t1);
6095 60919 : rel_remove_internal_exp(t2);
6096 60919 : if (!corresponding && list_length(t1->exps) != list_length(t2->exps)) {
6097 1 : int t1nrcols = list_length(t1->exps);
6098 1 : int t2nrcols = list_length(t2->exps);
6099 1 : const char *op = "UNION";
6100 1 : if (q->token == SQL_EXCEPT)
6101 : op = "EXCEPT";
6102 0 : else if (q->token == SQL_INTERSECT)
6103 0 : op = "INTERSECT";
6104 1 : rel_destroy(t1);
6105 1 : rel_destroy(t2);
6106 1 : return sql_error(sql, 02, SQLSTATE(42000) "%s: column counts (%d and %d) do not match", op, t1nrcols, t2nrcols);
6107 : }
6108 60918 : if ( q->token == SQL_UNION) {
6109 58437 : int outer = n->next->next->next->next->data.i_val;
6110 : /* For EXCEPT/INTERSECT the group by is always done within the implementation */
6111 : /* TODO add those later in an optimizer ! */
6112 58437 : if (t1 && distinct)
6113 2006 : t1 = rel_distinct(t1);
6114 58437 : if (t2 && distinct)
6115 2006 : t2 = rel_distinct(t2);
6116 : // TODO: this has to be fixed
6117 : /*res = rel_setquery_(query, t1, t2, corresponding, op_union, outer);*/
6118 58437 : res = rel_setquery_n_ary_(query, t1, t2, corresponding, op_munion, outer);
6119 2481 : } else if ( q->token == SQL_EXCEPT)
6120 2023 : res = rel_setquery_(query, t1, t2, corresponding, op_except, 0);
6121 458 : else if ( q->token == SQL_INTERSECT)
6122 458 : res = rel_setquery_(query, t1, t2, corresponding, op_inter, 0);
6123 60918 : if (res) {
6124 60909 : set_processed(res);
6125 60909 : if (distinct)
6126 4361 : res = rel_distinct(res);
6127 : }
6128 : return res;
6129 : }
6130 :
6131 : static sql_rel *
6132 58671 : rel_joinquery_(sql_query *query, symbol *tab1, int natural, jt jointype, symbol *tab2, symbol *js, list *refs)
6133 : {
6134 58671 : mvc *sql = query->sql;
6135 58671 : operator_type op = op_join;
6136 58671 : sql_rel *t1 = NULL, *t2 = NULL, *inner, *rel = NULL;
6137 58671 : int l_nil = 0, r_nil = 0, lateral = 0;
6138 :
6139 58671 : switch(jointype) {
6140 : case jt_inner:
6141 : case jt_cross: op = op_join;
6142 : break;
6143 : case jt_left: op = op_left;
6144 : r_nil = 1;
6145 : break;
6146 : case jt_right: op = op_right;
6147 : l_nil = 1;
6148 : break;
6149 : case jt_full: op = op_full;
6150 : l_nil = 1;
6151 : r_nil = 1;
6152 : break;
6153 : }
6154 :
6155 : /* a dependent join cannot depend on the right side, so disable lateral check for right and full joins */
6156 58671 : lateral = (op == op_join || op == op_left) && check_is_lateral(tab2);
6157 58671 : t1 = table_ref(query, tab1, 0, refs);
6158 58671 : if (t1) {
6159 58666 : if (!lateral) {
6160 58631 : t2 = table_ref(query, tab2, 0, refs);
6161 : } else {
6162 35 : query_processed(query);
6163 35 : query_push_outer(query, t1, sql_from);
6164 35 : t2 = table_ref(query, tab2, 0, refs);
6165 35 : t1 = query_pop_outer(query);
6166 : }
6167 : }
6168 58671 : if (!t1 || !t2)
6169 : return NULL;
6170 :
6171 58648 : query_processed(query);
6172 58648 : if (strcmp(rel_name(t1), rel_name(t2)) == 0) {
6173 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: ERROR: table name '%s' specified more than once", rel_name(t1));
6174 : }
6175 58648 : inner = rel = rel_crossproduct(sql->sa, t1, t2, op);
6176 58648 : if (!rel)
6177 : return NULL;
6178 58648 : if (lateral)
6179 34 : set_dependent(rel);
6180 :
6181 58648 : assert(jointype != jt_cross || (!natural && !js)); /* there are no natural cross joins, or cross joins with conditions */
6182 58648 : if (js && natural)
6183 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: cannot have a NATURAL JOIN with a join specification (ON or USING)");
6184 58648 : if (jointype != jt_cross && !js && !natural)
6185 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: must have NATURAL JOIN or a JOIN with a join specification (ON or USING)");
6186 :
6187 58648 : if (js && js->token != SQL_USING) { /* On sql_logical_exp */
6188 58477 : rel = rel_logical_exp(query, rel, js, sql_where | sql_join);
6189 171 : } else if (js) { /* using */
6190 20 : char rname[16], *rnme;
6191 20 : dnode *n = js->data.lval->h;
6192 20 : list *outexps = new_exp_list(sql->sa), *exps;
6193 20 : node *m;
6194 :
6195 20 : rnme = sa_strdup(sql->sa, number2name(rname, sizeof(rname), ++sql->label));
6196 46 : for (; n; n = n->next) {
6197 26 : char *nm = n->data.sval;
6198 26 : sql_exp *cond, *ls, *rs;
6199 :
6200 26 : if (!(ls = rel_bind_column(sql, t1, nm, sql_where | sql_join, 0)) && sql->session->status == -ERR_AMBIGUOUS)
6201 0 : return NULL;
6202 26 : if (!(rs = rel_bind_column(sql, t2, nm, sql_where | sql_join, 0)) && sql->session->status == -ERR_AMBIGUOUS)
6203 : return NULL;
6204 26 : if (!ls || !rs)
6205 0 : return sql_error(sql, 02, SQLSTATE(42000) "JOIN: tables '%s' and '%s' do not have a matching column '%s'", rel_name(t1)?rel_name(t1):"", rel_name(t2)?rel_name(t2):"", nm);
6206 26 : if (!(rel = rel_compare_exp(query, rel, ls, rs, "=", TRUE, 0, 0, 0, 0)))
6207 : return NULL;
6208 26 : if (op != op_join) {
6209 12 : if (!(cond = rel_unop_(sql, rel, ls, "sys", "isnull", card_value)))
6210 : return NULL;
6211 12 : set_has_no_nil(cond);
6212 12 : if (rel_convert_types(sql, t1, t2, &ls, &rs, 1, type_equal) < 0)
6213 : return NULL;
6214 12 : if (!(ls = rel_nop_(sql, rel, cond, rs, ls, NULL, "sys", "ifthenelse", card_value)))
6215 : return NULL;
6216 : }
6217 26 : exp_setname(sql, ls, rnme, nm);
6218 26 : append(outexps, ls);
6219 26 : if (!rel)
6220 : return NULL;
6221 : }
6222 20 : exps = rel_projections(sql, t1, NULL, 1, 1);
6223 199 : for (m = exps->h; m; m = m->next) {
6224 179 : const char *nm = exp_name(m->data);
6225 179 : int fnd = 0;
6226 :
6227 429 : for (n = js->data.lval->h; n; n = n->next) {
6228 276 : if (strcmp(nm, n->data.sval) == 0) {
6229 : fnd = 1;
6230 : break;
6231 : }
6232 : }
6233 179 : if (!fnd) {
6234 153 : sql_exp *ls = m->data;
6235 153 : if (l_nil)
6236 18 : set_has_nil(ls);
6237 153 : set_not_unique(ls);
6238 153 : append(outexps, ls);
6239 : }
6240 : }
6241 20 : exps = rel_projections(sql, t2, NULL, 1, 1);
6242 100 : for (m = exps->h; m; m = m->next) {
6243 80 : const char *nm = exp_name(m->data);
6244 80 : int fnd = 0;
6245 :
6246 230 : for (n = js->data.lval->h; n; n = n->next) {
6247 176 : if (strcmp(nm, n->data.sval) == 0) {
6248 : fnd = 1;
6249 : break;
6250 : }
6251 : }
6252 80 : if (!fnd) {
6253 54 : sql_exp *rs = m->data;
6254 54 : if (r_nil)
6255 14 : set_has_nil(rs);
6256 54 : set_not_unique(rs);
6257 54 : append(outexps, rs);
6258 : }
6259 : }
6260 20 : rel = rel_project(sql->sa, rel, outexps);
6261 151 : } else if (jointype != jt_cross) { /* ! js -> natural join */
6262 60 : rel = join_on_column_name(query, rel, t1, t2, op, l_nil, r_nil);
6263 : }
6264 58648 : if (!rel)
6265 : return NULL;
6266 58630 : if (inner && is_outerjoin(inner->op))
6267 21647 : set_processed(inner);
6268 58630 : set_processed(rel);
6269 58630 : query_processed(query);
6270 58630 : return rel;
6271 : }
6272 :
6273 : static sql_rel *
6274 58671 : rel_joinquery(sql_query *query, symbol *q, list *refs)
6275 : {
6276 58671 : dnode *n = q->data.lval->h;
6277 58671 : symbol *tab_ref1 = n->data.sym;
6278 58671 : int natural = n->next->data.i_val;
6279 58671 : jt jointype = (jt) n->next->next->data.i_val;
6280 58671 : symbol *tab_ref2 = n->next->next->next->data.sym;
6281 58671 : symbol *joinspec = n->next->next->next->next->data.sym;
6282 :
6283 58671 : assert(n->next->type == type_int);
6284 58671 : assert(n->next->next->type == type_int);
6285 58671 : return rel_joinquery_(query, tab_ref1, natural, jointype, tab_ref2, joinspec, refs);
6286 : }
6287 :
6288 : sql_rel *
6289 368545 : rel_subquery(sql_query *query, symbol *sq, exp_kind ek)
6290 : {
6291 368545 : mvc *sql = query->sql;
6292 :
6293 368545 : query_processed(query);
6294 368546 : if (!stack_push_frame(sql, NULL))
6295 0 : return sql_error(sql, 02, SQLSTATE(HY013) MAL_MALLOC_FAIL);
6296 368544 : sql_rel *rel = rel_query(query, sq, ek);
6297 368544 : stack_pop_frame(sql);
6298 368545 : if (!query_has_outer(query))
6299 332662 : query_processed(query);
6300 368544 : if (rel && ek.type == type_relation && ek.card < card_set && rel->card >= CARD_AGGR)
6301 15 : return rel_zero_or_one(sql, rel, ek);
6302 : return rel;
6303 : }
6304 :
6305 : sql_rel *
6306 237808 : rel_selects(sql_query *query, symbol *s)
6307 : {
6308 237808 : mvc *sql = query->sql;
6309 237808 : sql_rel *ret = NULL;
6310 :
6311 237808 : switch (s->token) {
6312 5663 : case SQL_WITH:
6313 5663 : ret = rel_with_query(query, s);
6314 5663 : sql->type = Q_TABLE;
6315 5663 : break;
6316 2177 : case SQL_VALUES:
6317 2177 : ret = rel_values(query, s, NULL);
6318 2177 : sql->type = Q_TABLE;
6319 2177 : break;
6320 210851 : case SQL_SELECT: {
6321 210851 : exp_kind ek = {type_value, card_relation, TRUE};
6322 210851 : SelectNode *sn = (SelectNode *) s;
6323 :
6324 210851 : if (sn->into) {
6325 1 : sql->type = Q_SCHEMA;
6326 1 : ret = rel_select_with_into(query, s);
6327 : } else {
6328 210850 : ret = rel_subquery(query, s, ek);
6329 210849 : sql->type = Q_TABLE;
6330 : }
6331 210850 : } break;
6332 0 : case SQL_JOIN:
6333 0 : ret = rel_joinquery(query, s, NULL);
6334 0 : sql->type = Q_TABLE;
6335 0 : break;
6336 19117 : case SQL_UNION:
6337 : case SQL_EXCEPT:
6338 : case SQL_INTERSECT:
6339 19117 : ret = rel_setquery(query, s);
6340 19117 : sql->type = Q_TABLE;
6341 19117 : break;
6342 : default:
6343 : return NULL;
6344 : }
6345 237807 : if (!ret && sql->errstr[0] == 0)
6346 0 : (void) sql_error(sql, 02, SQLSTATE(42000) "relational query without result");
6347 : return ret;
6348 : }
6349 :
6350 : sql_rel *
6351 79016 : schema_selects(sql_query *query, sql_schema *schema, symbol *s)
6352 : {
6353 79016 : mvc *sql = query->sql;
6354 79016 : sql_rel *res;
6355 79016 : sql_schema *os = cur_schema(sql);
6356 :
6357 79016 : sql->session->schema = schema;
6358 79016 : res = rel_selects(query, s);
6359 79016 : sql->session->schema = os;
6360 79016 : return res;
6361 : }
6362 :
6363 : sql_rel *
6364 26 : rel_loader_function(sql_query *query, symbol* fcall, list *fexps, sql_subfunc **loader_function)
6365 : {
6366 26 : mvc *sql = query->sql;
6367 26 : sql_rel *sq = NULL;
6368 26 : dnode *l = fcall->data.lval->h;
6369 26 : char *sname = qname_schema(l->data.lval);
6370 26 : char *fname = qname_schema_object(l->data.lval);
6371 :
6372 26 : list *tl = sa_list(sql->sa);
6373 26 : list *exps = sa_list(sql->sa);
6374 26 : if (l->next)
6375 26 : l = l->next; /* skip distinct */
6376 26 : if (l->next) { /* table call with subquery */
6377 22 : if (l->next->type == type_symbol || l->next->type == type_list) {
6378 22 : int count = 0;
6379 22 : symbol *subquery = NULL;
6380 22 : dnode *n = NULL;
6381 :
6382 22 : if (l->next->type == type_symbol)
6383 : n = l->next;
6384 : else
6385 1 : n = l->next->data.lval->h;
6386 :
6387 66 : for (dnode *m = n; m; m = m->next) {
6388 44 : if (m->type == type_symbol && m->data.sym->token == SQL_SELECT)
6389 44 : subquery = m->data.sym;
6390 44 : count++;
6391 : }
6392 22 : if (subquery && count > 1)
6393 0 : return sql_error(sql, 02, SQLSTATE(42000) "SELECT: The input for the loader function '%s' must be either a single sub query, or a list of values", fname);
6394 :
6395 22 : if (subquery) {
6396 0 : exp_kind ek = { type_value, card_relation, TRUE };
6397 0 : if (!(sq = rel_subquery(query, subquery, ek)))
6398 0 : return NULL;
6399 : } else {
6400 22 : exp_kind ek = { type_value, card_column, TRUE };
6401 22 : list *exps = sa_list(sql->sa);
6402 88 : for ( ; n; n = n->next) {
6403 44 : sql_exp *e = rel_value_exp(query, NULL, n->data.sym, sql_sel | sql_from, ek);
6404 :
6405 44 : if (!e)
6406 0 : return NULL;
6407 44 : append(exps, e);
6408 : }
6409 22 : sq = rel_project(sql->sa, NULL, exps);
6410 : }
6411 : }
6412 22 : if (!sq)
6413 0 : return sql_error(sql, ERR_NOTFOUND, SQLSTATE(42000) "SELECT: no such loader function %s%s%s'%s'", sname ? "'":"", sname ? sname : "", sname ? "'.":"", fname);
6414 66 : for (node *en = sq->exps->h; en; en = en->next) {
6415 44 : sql_exp *e = en->data;
6416 :
6417 44 : append(exps, e = exp_ref(sql, e));
6418 44 : append(tl, exp_subtype(e));
6419 : }
6420 : }
6421 :
6422 26 : sql_exp *e = NULL;
6423 26 : if (!(e = find_table_function(sql, sname, fname, exps, tl, F_LOADER)))
6424 : return NULL;
6425 25 : sql_subfunc *sf = e->f;
6426 25 : if (sq) {
6427 66 : for (node *n = sq->exps->h, *m = sf->func->ops->h ; n && m ; n = n->next, m = m->next) {
6428 44 : sql_exp *e = (sql_exp*) n->data;
6429 44 : sql_arg *a = (sql_arg*) m->data;
6430 44 : if (!exp_subtype(e) && rel_set_type_param(sql, &(a->type), sq, e, 0) < 0)
6431 : return NULL;
6432 : }
6433 : }
6434 :
6435 25 : if (loader_function)
6436 25 : *loader_function = sf;
6437 :
6438 28 : return rel_table_func(sql->sa, sq, e, fexps, (sq)?TABLE_FROM_RELATION:TABLE_PROD_FUNC);
6439 : }
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