LCOV - code coverage report
Current view: top level - sql/backends/monet5 - sql_cat.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1144 1515 75.5 %
Date: 2024-11-14 20:04:02 Functions: 62 62 100.0 %

          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             : /*
      14             :  * authors M Kersten, N Nes
      15             :  * SQL catalog support implementation
      16             :  * This module contains the wrappers around the SQL catalog operations
      17             :  */
      18             : #include "monetdb_config.h"
      19             : #include "sql_cat.h"
      20             : #include "sql_gencode.h"
      21             : #include "sql_optimizer.h"
      22             : #include "sql_scenario.h"
      23             : #include "sql_mvc.h"
      24             : #include "sql_qc.h"
      25             : #include "sql_partition.h"
      26             : #include "sql_statistics.h"
      27             : #include "mal_namespace.h"
      28             : #include "opt_prelude.h"
      29             : #include "querylog.h"
      30             : #include "mal_builder.h"
      31             : 
      32             : #include "rel_select.h"
      33             : #include "rel_prop.h"
      34             : #include "rel_rel.h"
      35             : #include "rel_exp.h"
      36             : #include "rel_bin.h"
      37             : #include "rel_dump.h"
      38             : #include "orderidx.h"
      39             : #include "sql_user.h"
      40             : 
      41             : #define initcontext()                                                                                                   \
      42             :         if ((msg = getSQLContext(cntxt, mb, &sql, NULL)) != NULL)                   \
      43             :                 return msg;                                                                                                             \
      44             :         if ((msg = checkSQLContext(cntxt)) != NULL)                                                     \
      45             :                 return msg;                                                                                                             \
      46             :         if (store_readonly(sql->session->tr->store))                                           \
      47             :                 throw(SQL,"sql.cat",SQLSTATE(25006) "Schema statements cannot be executed on a readonly database.");
      48             : 
      49             : static char *
      50       26441 : SaveArgReference(MalStkPtr stk, InstrPtr pci, int arg)
      51             : {
      52       26441 :         char *val = *getArgReference_str(stk, pci, arg);
      53             : 
      54       32005 :         if (strNil(val))
      55             :                 val = NULL;
      56       26441 :         return val;
      57             : }
      58             : 
      59             : static int
      60        2305 : table_has_updates(sql_trans *tr, sql_table *t)
      61             : {
      62        2305 :         node *n;
      63        2305 :         int cnt = 0;
      64        2305 :         sqlstore *store = tr->store;
      65             : 
      66        7185 :         for ( n = ol_first_node(t->columns); !cnt && n; n = n->next) {
      67        4880 :                 sql_column *c = n->data;
      68             : 
      69        4880 :                 size_t upd = store->storage_api.count_col( tr, c, 2/* count updates */);
      70        4880 :                 cnt |= upd > 0;
      71             :         }
      72        2305 :         return cnt;
      73             : }
      74             : 
      75             : static char *
      76         584 : rel_check_tables(mvc *sql, sql_table *nt, sql_table *nnt, const char *errtable)
      77             : {
      78         584 :         node *n, *m, *nn, *mm;
      79             : 
      80         584 :         if (ol_length(nt->columns) != ol_length(nnt->columns))
      81           1 :                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table doesn't match %s definition", errtable, errtable);
      82        1872 :         for (n = ol_first_node(nt->columns), m = ol_first_node(nnt->columns); n && m; n = n->next, m = m->next) {
      83        1296 :                 sql_column *nc = n->data;
      84        1296 :                 sql_column *mc = m->data;
      85             : 
      86        1296 :                 if (subtype_cmp(&nc->type, &mc->type) != 0)
      87           2 :                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table column type doesn't match %s definition", errtable, errtable);
      88        1294 :                 if (nc->null != mc->null)
      89           3 :                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table column NULL check doesn't match %s definition", errtable, errtable);
      90        1291 :                 if (isRangePartitionTable(nt) || isListPartitionTable(nt)) {
      91         481 :                         if ((nc->def || mc->def) && (!nc->def || !mc->def || strcmp(nc->def, mc->def) != 0))
      92           2 :                                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table column DEFAULT value doesn't match %s definition", errtable, errtable);
      93             :                 }
      94             :         }
      95         576 :         if (ol_length(nt->keys) != ol_length(nnt->keys))
      96           2 :                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table key doesn't match %s definition", errtable, errtable);
      97         574 :         if (ol_length(nt->keys))
      98         133 :                 for (n = ol_first_node(nt->keys), m = ol_first_node(nnt->keys); n && m; n = n->next, m = m->next) {
      99          71 :                         sql_key *ni = n->data;
     100          71 :                         sql_key *mi = m->data;
     101             : 
     102          71 :                         if (ni->type != mi->type)
     103           0 :                                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table key type doesn't match %s definition", errtable, errtable);
     104          71 :                         if (list_length(ni->columns) != list_length(mi->columns))
     105           0 :                                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table key type doesn't match %s definition", errtable, errtable);
     106         148 :                         for (nn = ni->columns->h, mm = mi->columns->h; nn && mm; nn = nn->next, mm = mm->next) {
     107          79 :                                 sql_kc *nni = nn->data;
     108          79 :                                 sql_kc *mmi = mm->data;
     109             : 
     110          79 :                                 if (nni->c->colnr != mmi->c->colnr)
     111           2 :                                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table key's columns doesn't match %s definition", errtable, errtable);
     112             :                         }
     113             :                 }
     114             : 
     115             :         /* For indexes, empty ones can be ignored, which makes validation trickier */
     116         572 :         n = ol_length(nt->idxs) ? ol_first_node(nt->idxs) : NULL;
     117         572 :         m = ol_length(nnt->idxs) ? ol_first_node(nnt->idxs) : NULL;
     118         580 :         for (; n || m; n = n->next, m = m->next) {
     119             :                 sql_idx *ni, *mi;
     120             : 
     121         122 :                 while (n) {
     122          68 :                         ni = n->data;
     123          68 :                         if ((!hash_index(ni->type) || list_length(ni->columns) > 1) && idx_has_column(ni->type))
     124             :                                 break;
     125          60 :                         n = n->next;
     126             :                 }
     127         122 :                 while (m) {
     128          68 :                         mi = m->data;
     129          68 :                         if ((!hash_index(mi->type) || list_length(mi->columns) > 1) && idx_has_column(mi->type))
     130             :                                 break;
     131          60 :                         m = m->next;
     132             :                 }
     133             : 
     134          62 :                 if (!n && !m) /* no more idxs to check, done */
     135             :                         break;
     136           8 :                 if ((m && !n) || (!m && n))
     137           0 :                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table index type doesn't match %s definition", errtable, errtable);
     138             : 
     139           8 :                 assert(m && n);
     140           8 :                 ni = n->data;
     141           8 :                 mi = m->data;
     142           8 :                 if (ni->type != mi->type)
     143           0 :                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table index type doesn't match %s definition", errtable, errtable);
     144           8 :                 if (list_length(ni->columns) != list_length(mi->columns))
     145           0 :                         throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table key type doesn't match %s definition", errtable, errtable);
     146          24 :                 for (nn = ni->columns->h, mm = mi->columns->h; nn && mm; nn = nn->next, mm = mm->next) {
     147          16 :                         sql_kc *nni = nn->data;
     148          16 :                         sql_kc *mmi = mm->data;
     149             : 
     150          16 :                         if (nni->c->colnr != mmi->c->colnr)
     151           0 :                                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table index's columns doesn't match %s definition", errtable, errtable);
     152             :                 }
     153             :         }
     154             : 
     155         572 :         if (nested_mergetable(sql->session->tr, nt/*mergetable*/, nnt->s->base.name, nnt->base.name/*parts*/))
     156           2 :                 throw(SQL,"sql.rel_check_tables",SQLSTATE(3F000) "ALTER %s: to be added table is a parent of the %s", errtable, errtable);
     157             :         return MAL_SUCCEED;
     158             : }
     159             : 
     160             : static char*
     161         595 : validate_alter_table_add_table(mvc *sql, char* call, char *msname, char *mtname, char *psname, char *ptname,
     162             :                                                            sql_table **mt, sql_table **pt, int update)
     163             : {
     164         595 :         char *msg = MAL_SUCCEED;
     165         595 :         sql_schema *ms = NULL, *ps = NULL;
     166         595 :         sql_table *rmt = NULL, *rpt = NULL;
     167             : 
     168         595 :         if (!(ms = mvc_bind_schema(sql, msname)))
     169           0 :                 throw(SQL,call,SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", msname);
     170         595 :         if (!(ps = mvc_bind_schema(sql, psname)))
     171           0 :                 throw(SQL,call,SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", psname);
     172         595 :         if (!mvc_schema_privs(sql, ms))
     173           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), ms->base.name);
     174         595 :         if (!mvc_schema_privs(sql, ps))
     175           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), ps->base.name);
     176         595 :         if (!(rmt = mvc_bind_table(sql, ms, mtname)))
     177           0 :                 throw(SQL,call,SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", mtname, ms->base.name);
     178         595 :         if (!(rpt = mvc_bind_table(sql, ps, ptname)))
     179           0 :                 throw(SQL,call,SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", ptname, ps->base.name);
     180             : 
     181         595 :         const char *errtable = TABLE_TYPE_DESCRIPTION(rmt->type, rmt->properties);
     182         595 :         if (!update && (!isMergeTable(rmt) && !isReplicaTable(rmt)))
     183           1 :                 throw(SQL,call,SQLSTATE(42S02) "ALTER TABLE: cannot add table '%s.%s' to %s '%s.%s'", psname, ptname, errtable, msname, mtname);
     184         594 :         if (isView(rpt))
     185           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: can't add a view into a %s", errtable);
     186         594 :         if (isDeclaredTable(rpt))
     187           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: can't add a declared table into a %s", errtable);
     188         594 :         if (isTempSchema(rpt->s))
     189           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: can't add a temporary table into a %s", errtable);
     190         594 :         if (ms->base.id != ps->base.id)
     191           0 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: all children tables of '%s.%s' must be part of schema '%s'", msname, mtname, msname);
     192         594 :         if (rmt->base.id == rpt->base.id)
     193           1 :                 throw(SQL,call,SQLSTATE(42000) "ALTER TABLE: a %s can't be a child of itself", errtable);
     194         593 :         node *n = members_find_child_id(rmt->members, rpt->base.id);
     195         593 :         if (n && !update)
     196           7 :                 throw(SQL,call,SQLSTATE(42S02) "ALTER TABLE: table '%s.%s' is already part of %s '%s.%s'", psname, ptname, errtable, msname, mtname);
     197         586 :         if (!n && update)
     198           2 :                 throw(SQL,call,SQLSTATE(42S02) "ALTER TABLE: table '%s.%s' isn't part of %s '%s.%s'", psname, ptname, errtable, msname, mtname);
     199         584 :         if ((msg = rel_check_tables(sql, rmt, rpt, errtable)) != MAL_SUCCEED)
     200             :                 return msg;
     201             : 
     202         570 :         *mt = rmt;
     203         570 :         *pt = rpt;
     204         570 :         return MAL_SUCCEED;
     205             : }
     206             : 
     207             : static char *
     208         312 : alter_table_add_table(mvc *sql, char *msname, char *mtname, char *psname, char *ptname)
     209             : {
     210         312 :         sql_table *mt = NULL, *pt = NULL;
     211         312 :         str msg = validate_alter_table_add_table(sql, "sql.alter_table_add_table", msname, mtname, psname, ptname, &mt, &pt, 0);
     212             : 
     213         312 :         if (msg == MAL_SUCCEED) {
     214         302 :                 if (isRangePartitionTable(mt))
     215           0 :                         return createException(SQL, "sql.alter_table_add_table",SQLSTATE(42000) "ALTER TABLE: a range partition is required while adding under a range partition table");
     216         302 :                 if (isListPartitionTable(mt))
     217           0 :                         return createException(SQL, "sql.alter_table_add_table",SQLSTATE(42000) "ALTER TABLE: a value partition is required while adding under a list partition table");
     218         302 :                 switch (sql_trans_add_table(sql->session->tr, mt, pt)) {
     219           0 :                         case -1:
     220           0 :                                 return createException(SQL,"sql.alter_table_add_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     221           3 :                         case -2:
     222             :                         case -3:
     223           3 :                                 return createException(SQL,"sql.alter_table_add_table",SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
     224             :                         default:
     225             :                                 break;
     226             :                 }
     227             :         }
     228             :         return msg;
     229             : }
     230             : 
     231             : 
     232             : static char *
     233         224 : alter_table_add_range_partition(mvc *sql, char *msname, char *mtname, char *psname, char *ptname, ptr min, ptr max,
     234             :                                                                 bit with_nills, int update, lng cnt)
     235             : {
     236         224 :         sql_table *mt = NULL, *pt = NULL;
     237         224 :         sql_part *err = NULL;
     238         224 :         str msg = MAL_SUCCEED, err_min = NULL, err_max = NULL, conflict_err_min = NULL, conflict_err_max = NULL;
     239         224 :         int tp1 = 0, errcode = 0, min_null = 0, max_null = 0;
     240         224 :         size_t length = 0;
     241         224 :         sql_subtype tpe;
     242             : 
     243         224 :         if ((msg = validate_alter_table_add_table(sql, "sql.alter_table_add_range_partition", msname, mtname, psname, ptname, &mt, &pt, update))) {
     244             :                 return msg;
     245         210 :         } else if (!isRangePartitionTable(mt)) {
     246           0 :                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     247             :                                                                         "ALTER TABLE: cannot add range partition into a %s table",
     248           0 :                                                                         (isListPartitionTable(mt))?"list partition":"merge");
     249           0 :                 goto finish;
     250         210 :         } else if (!update && partition_find_part(sql->session->tr, pt, NULL)) {
     251           1 :                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     252             :                                                           "ALTER TABLE: table '%s.%s' is already part of another table",
     253             :                                                           psname, ptname);
     254           1 :                 goto finish;
     255             :         }
     256             : 
     257         209 :         find_partition_type(&tpe, mt);
     258         209 :         tp1 = tpe.type->localtype;
     259         209 :         min_null = ATOMcmp(tp1, min, ATOMnilptr(tp1)) == 0;
     260         209 :         max_null = ATOMcmp(tp1, max, ATOMnilptr(tp1)) == 0;
     261             : 
     262         209 :         if (!min_null && !max_null && ATOMcmp(tp1, min, max) > 0) {
     263           2 :                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000) "ALTER TABLE: minimum value is higher than maximum value");
     264           2 :                 goto finish;
     265             :         }
     266         207 :         if (!min_null && !max_null && ATOMcmp(tp1, min, max) == 0) {
     267           3 :                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000) "ALTER TABLE: minimum value is equal to the maximum value");
     268           3 :                 goto finish;
     269             :         }
     270             : 
     271         204 :         if (cnt) {
     272          18 :                 if (isPartitionedByColumnTable(mt)) {
     273          17 :                         throw(SQL, "sql.alter_table_add_range_partition", SQLSTATE(M0M29) "ALTER TABLE: there are values in column %s outside the partition range", mt->part.pcol->base.name);
     274           1 :                 } else if (isPartitionedByExpressionTable(mt)) {
     275           1 :                         throw(SQL, "sql.alter_table_add_range_partition", SQLSTATE(M0M29) "ALTER TABLE: there are values in the expression outside the partition range");
     276             :                 } else {
     277           0 :                         assert(0);
     278             :                 }
     279             :         }
     280             : 
     281         186 :         errcode = sql_trans_add_range_partition(sql->session->tr, mt, pt, tpe, min, max, with_nills, update, &err);
     282         186 :         switch (errcode) {
     283             :                 case 0:
     284             :                         break;
     285           0 :                 case -1:
     286           0 :                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     287           0 :                         break;
     288           1 :                 case -2:
     289             :                 case -3:
     290           1 :                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     291             :                                                                         "ALTER TABLE: failed due to conflict with another transaction");
     292           1 :                         break;
     293           0 :                 case -10:
     294           0 :                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     295             :                                                                         "ALTER TABLE: minimum value length is higher than %d", STORAGE_MAX_VALUE_LENGTH);
     296           0 :                         break;
     297           0 :                 case -11:
     298           0 :                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     299             :                                                                         "ALTER TABLE: maximum value length is higher than %d", STORAGE_MAX_VALUE_LENGTH);
     300           0 :                         break;
     301          38 :                 case -12:
     302          38 :                         assert(err);
     303          38 :                         if (is_bit_nil(err->with_nills)) {
     304           4 :                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     305           4 :                                                                                 "ALTER TABLE: conflicting partitions: table %s.%s stores every possible value", err->t->s->base.name, err->base.name);
     306          34 :                         } else if (with_nills && err->with_nills) {
     307           6 :                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     308             :                                                                                 "ALTER TABLE: conflicting partitions: table %s.%s stores null values and only "
     309           6 :                                                                                 "one partition can store null values at the time", err->t->s->base.name, err->base.name);
     310             :                         } else {
     311          28 :                                 ssize_t (*atomtostr)(str *, size_t *, const void *, bool) = BATatoms[tp1].atomToStr;
     312          28 :                                 const void *nil = ATOMnilptr(tp1);
     313          28 :                                 sql_table *errt = mvc_bind_table(sql, mt->s, err->base.name);
     314             : 
     315          28 :                                 if (!errt) {
     316           0 :                                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     317           0 :                                                                           "ALTER TABLE: cannot find partition table %s.%s", err->t->s->base.name, err->base.name);
     318           0 :                                         goto finish;
     319             :                                 }
     320          28 :                                 if (!ATOMcmp(tp1, nil, err->part.range.minvalue)) {
     321           9 :                                         if (!(conflict_err_min = GDKstrdup("absolute min value")))
     322           0 :                                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     323          19 :                                 } else if (atomtostr(&conflict_err_min, &length, err->part.range.minvalue, true) < 0) {
     324           0 :                                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     325             :                                 }
     326           0 :                                 if (msg)
     327           0 :                                         goto finish;
     328             : 
     329          28 :                                 if (!ATOMcmp(tp1, nil, err->part.range.maxvalue)) {
     330           8 :                                         if (!(conflict_err_max = GDKstrdup("absolute max value")))
     331           0 :                                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     332          20 :                                 } else if (atomtostr(&conflict_err_max, &length, err->part.range.maxvalue, true) < 0) {
     333           0 :                                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     334             :                                 }
     335           0 :                                 if (msg)
     336           0 :                                         goto finish;
     337             : 
     338          28 :                                 if (!ATOMcmp(tp1, nil, min)) {
     339           5 :                                         if (!(err_min = GDKstrdup("absolute min value")))
     340           0 :                                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     341          23 :                                 } else if (atomtostr(&err_min, &length, min, true) < 0) {
     342           0 :                                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     343             :                                 }
     344           0 :                                 if (msg)
     345           0 :                                         goto finish;
     346             : 
     347          28 :                                 if (!ATOMcmp(tp1, nil, max)) {
     348           7 :                                         if (!(err_max = GDKstrdup("absolute max value")))
     349           0 :                                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     350          21 :                                 } else if (atomtostr(&err_max, &length, max, true) < 0) {
     351           0 :                                         msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     352             :                                 }
     353           0 :                                 if (msg)
     354           0 :                                         goto finish;
     355             : 
     356          28 :                                 msg = createException(SQL,"sql.alter_table_add_range_partition",SQLSTATE(42000)
     357             :                                                                           "ALTER TABLE: conflicting partitions: %s to %s and %s to %s from table %s.%s",
     358          28 :                                                                           err_min, err_max, conflict_err_min, conflict_err_max, errt->s->base.name, errt->base.name);
     359             :                         }
     360             :                         break;
     361             :                 default:
     362           0 :                         assert(0);
     363             :         }
     364             : 
     365         192 : finish:
     366         192 :         if (err_min)
     367          28 :                 GDKfree(err_min);
     368         192 :         if (err_max)
     369          28 :                 GDKfree(err_max);
     370         192 :         if (conflict_err_min)
     371          28 :                 GDKfree(conflict_err_min);
     372         192 :         if (conflict_err_max)
     373          28 :                 GDKfree(conflict_err_max);
     374             :         return msg;
     375             : }
     376             : 
     377             : static char *
     378          59 : alter_table_add_value_partition(mvc *sql, MalStkPtr stk, InstrPtr pci, char *msname, char *mtname, char *psname,
     379             :                                                                 char *ptname, bit with_nills, int update, lng cnt)
     380             : {
     381          59 :         sql_table *mt = NULL, *pt = NULL;
     382          59 :         str msg = MAL_SUCCEED;
     383          59 :         sql_part *err = NULL;
     384          59 :         int errcode = 0, i = 0, ninserts = 0;
     385          59 :         sql_subtype tpe;
     386          59 :         list *values = NULL;
     387             : 
     388          59 :         assert(with_nills == false || with_nills == true); /* No nills allowed here */
     389          59 :         if ((msg = validate_alter_table_add_table(sql, "sql.alter_table_add_value_partition", msname, mtname, psname, ptname,
     390             :                                                                                          &mt, &pt, update))) {
     391             :                 return msg;
     392          58 :         } else if (!isListPartitionTable(mt)) {
     393           0 :                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     394             :                                                                         "ALTER TABLE: cannot add value partition into a %s table",
     395           0 :                                                                         (isRangePartitionTable(mt))?"range partition":"merge");
     396           0 :                 goto finish;
     397          58 :         } else if (!update && partition_find_part(sql->session->tr, pt, NULL)) {
     398           0 :                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     399             :                                                           "ALTER TABLE: table '%s.%s' is already part of another table",
     400             :                                                           psname, ptname);
     401           0 :                 goto finish;
     402             :         }
     403             : 
     404          58 :         find_partition_type(&tpe, mt);
     405          58 :         ninserts = pci->argc - pci->retc - 7;
     406          58 :         if (ninserts <= 0 && !with_nills) {
     407           0 :                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000) "ALTER TABLE: no values in the list");
     408           0 :                 goto finish;
     409             :         }
     410             : 
     411          58 :         if (cnt) {
     412           3 :                 if (isPartitionedByColumnTable(mt)) {
     413           2 :                         throw(SQL, "sql.alter_table_add_value_partition", SQLSTATE(M0M29) "ALTER TABLE: there are values in column %s outside the partition list of values", mt->part.pcol->base.name);
     414           1 :                 } else if (isPartitionedByExpressionTable(mt)) {
     415           1 :                         throw(SQL, "sql.alter_table_add_value_partition", SQLSTATE(M0M29) "ALTER TABLE: there are values in the expression outside the partition list of values");
     416             :                 } else {
     417           0 :                         assert(0);
     418             :                 }
     419             :         }
     420             : 
     421          55 :         values = list_create((fdestroy) &part_value_destroy);
     422         219 :         for ( i = pci->retc+7; i < pci->argc; i++){
     423         165 :                 sql_part_value *nextv = NULL;
     424         165 :                 ValRecord *vnext = &(stk)->stk[(pci)->argv[i]];
     425         165 :                 ptr pnext = VALget(vnext);
     426         165 :                 size_t len = ATOMlen(vnext->vtype, pnext);
     427             : 
     428         165 :                 if (VALisnil(vnext)) { /* check for an eventual null value which cannot be */
     429           0 :                         msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     430             :                                                                                                                                                         "ALTER TABLE: list value cannot be null");
     431           0 :                         list_destroy2(values, sql->session->tr->store);
     432           0 :                         goto finish;
     433             :                 }
     434             : 
     435         165 :                 nextv = ZNEW(sql_part_value); /* instantiate the part value */
     436         165 :                 nextv->value = NEW_ARRAY(char, len);
     437         165 :                 memcpy(nextv->value, pnext, len);
     438         165 :                 nextv->length = len;
     439             : 
     440         165 :                 if (list_append_sorted(values, nextv, &tpe, sql_values_list_element_validate_and_insert) != NULL) {
     441           1 :                         msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     442             :                                                                         "ALTER TABLE: there are duplicated values in the list");
     443           1 :                         list_destroy2(values, sql->session->tr->store);
     444           1 :                         _DELETE(nextv->value);
     445           1 :                         _DELETE(nextv);
     446           1 :                         goto finish;
     447             :                 }
     448             :         }
     449             : 
     450          54 :         errcode = sql_trans_add_value_partition(sql->session->tr, mt, pt, tpe, values, with_nills, update, &err);
     451          54 :         if (errcode <= -10) {
     452           0 :                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     453             :                                                                   "ALTER TABLE: value at position %d length is higher than %d",
     454             :                                                                   (errcode * -1) - 10, STORAGE_MAX_VALUE_LENGTH);
     455             :         } else {
     456          54 :                 switch (errcode) {
     457             :                         case 0:
     458             :                                 break;
     459           0 :                         case -1:
     460           0 :                                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     461           0 :                                 break;
     462           0 :                         case -2:
     463             :                         case -3:
     464           0 :                                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     465             :                                                                                   "ALTER TABLE: failed due to conflict with another transaction");
     466           0 :                                 break;
     467           5 :                         case -4:
     468           5 :                                 msg = createException(SQL,"sql.alter_table_add_value_partition",SQLSTATE(42000)
     469             :                                                                                 "ALTER TABLE: the new partition is conflicting with the existing partition %s.%s",
     470           5 :                                                                                 err->t->s->base.name, err->base.name);
     471           5 :                                 break;
     472             :                         default:
     473           0 :                                 assert(0);
     474             :                 }
     475             :         }
     476             : 
     477             : finish:
     478             :         return msg;
     479             : }
     480             : 
     481             : static char *
     482         180 : alter_table_del_table(mvc *sql, char *msname, char *mtname, char *psname, char *ptname, int drop_action)
     483             : {
     484         180 :         sql_schema *ms = NULL, *ps = NULL;
     485         180 :         sql_table *mt = NULL, *pt = NULL;
     486         180 :         node *n = NULL;
     487             : 
     488         180 :         if (!(ms = mvc_bind_schema(sql, msname)))
     489           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", msname);
     490         180 :         if (!(ps = mvc_bind_schema(sql, psname)))
     491           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", psname);
     492         180 :         if (!mvc_schema_privs(sql, ms))
     493           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), ms->base.name);
     494         180 :         if (!mvc_schema_privs(sql, ps))
     495           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), ps->base.name);
     496         180 :         if (!(mt = mvc_bind_table(sql, ms, mtname)))
     497           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", mtname, ms->base.name);
     498         180 :         if (!(pt = mvc_bind_table(sql, ps, ptname)))
     499           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", ptname, ps->base.name);
     500         180 :         const char *errtable = TABLE_TYPE_DESCRIPTION(mt->type, mt->properties);
     501         180 :         if (!isMergeTable(mt) && !isReplicaTable(mt))
     502           0 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42S02) "ALTER TABLE: cannot drop table '%s.%s' to %s '%s.%s'", psname, ptname, errtable, msname, mtname);
     503         180 :         if (!(n = members_find_child_id(mt->members, pt->base.id)))
     504          10 :                 throw(SQL,"sql.alter_table_del_table",SQLSTATE(42S02) "ALTER TABLE: table '%s.%s' isn't part of %s '%s.%s'", ps->base.name, ptname, errtable, ms->base.name, mtname);
     505             : 
     506         170 :         switch (sql_trans_del_table(sql->session->tr, mt, pt, drop_action)) {
     507           0 :                 case -1:
     508           0 :                         throw(SQL,"sql.alter_table_del_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     509           0 :                 case -2:
     510             :                 case -3:
     511           0 :                         throw(SQL,"sql.alter_table_del_table",SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
     512             :                 default:
     513             :                         break;
     514             :         }
     515             :         return MAL_SUCCEED;
     516             : }
     517             : 
     518             : static char *
     519        2310 : alter_table_set_access(mvc *sql, char *sname, char *tname, int access)
     520             : {
     521        2310 :         sql_schema *s = NULL;
     522        2310 :         sql_table *t = NULL;
     523             : 
     524        2310 :         if (!(s = mvc_bind_schema(sql, sname)))
     525           0 :                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", sname);
     526        2310 :         if (s && !mvc_schema_privs(sql, s))
     527           0 :                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     528        2310 :         if (!(t = mvc_bind_table(sql, s, tname)))
     529           0 :                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", tname, s->base.name);
     530        2310 :         if (!isTable(t))
     531           1 :                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(42000) "ALTER TABLE: access changes on %sS not supported", TABLE_TYPE_DESCRIPTION(t->type, t->properties));
     532        2309 :         if (t->access != access) {
     533        2309 :                 if (access && table_has_updates(sql->session->tr, t))
     534           0 :                         throw(SQL,"sql.alter_table_set_access",SQLSTATE(40000) "ALTER TABLE: set READ or INSERT ONLY not possible with outstanding updates (wait until updates are flushed)\n");
     535             : 
     536        2309 :                 switch (mvc_access(sql, t, access)) {
     537           0 :                         case -1:
     538           0 :                                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     539           0 :                         case -2:
     540             :                         case -3:
     541           0 :                                 throw(SQL,"sql.alter_table_set_access",SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
     542             :                         default:
     543             :                                 break;
     544             :                 }
     545             :         }
     546             :         return MAL_SUCCEED;
     547             : }
     548             : 
     549             : static char *
     550         345 : create_trigger(mvc *sql, char *sname, char *tname, char *triggername, int time, int orientation, int event, char *old_name, char *new_name, char *condition, char *query, int replace)
     551             : {
     552         345 :         sql_trigger *tri = NULL, *other = NULL;
     553         345 :         sql_schema *s = NULL;
     554         345 :         sql_table *t = NULL;
     555         345 :         const char *base = replace ? "CREATE OR REPLACE TRIGGER" : "CREATE TRIGGER";
     556             : 
     557        1031 :         if (!strNil(sname) && !strNil(tname)) {
     558         341 :                 if (!(s = mvc_bind_schema(sql, sname)))
     559           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: no such schema '%s'", base, sname);
     560         341 :                 if (!mvc_schema_privs(sql, s))
     561           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(42000) "%s: access denied for %s to schema '%s'", base, get_string_global_var(sql, "current_user"), s->base.name);
     562         341 :                 if (!(t = mvc_bind_table(sql, s, tname)))
     563           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: unknown table '%s'", base, tname);
     564         341 :                 if (isView(t))
     565           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: cannot create trigger on view '%s'", base, tname);
     566             :         } else {
     567           4 :                 if (!(s = mvc_bind_schema(sql, "sys")))
     568           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: no such schema '%s'", base, sname);
     569             :         }
     570             : 
     571         345 :         if ((other = mvc_bind_trigger(sql, s, triggername)) && !replace)
     572           0 :                 throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: name '%s' already in use", base, triggername);
     573             : 
     574         345 :         if (replace && other) {
     575           5 :                 if (other->t->base.id != t->base.id) /* defensive line */
     576           0 :                         throw(SQL,"sql.create_trigger",SQLSTATE(3F000) "%s: the to be replaced trigger '%s' is not from table '%s'", base, triggername, tname);
     577           5 :                 switch (mvc_drop_trigger(sql, s, other)) {
     578           0 :                         case -1:
     579           0 :                                 throw(SQL,"sql.create_trigger", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     580           2 :                         case -2:
     581             :                         case -3:
     582           2 :                                 throw(SQL,"sql.create_trigger", SQLSTATE(42000) "%s: transaction conflict detected", base);
     583             :                         default:
     584             :                                 break;
     585             :                 }
     586             :         }
     587         343 :         switch (mvc_create_trigger(&tri, sql, t, triggername, time, orientation, event, old_name, new_name, condition, query)) {
     588           0 :                 case -1:
     589           0 :                         throw(SQL,"sql.create_trigger", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     590           0 :                 case -2:
     591             :                 case -3:
     592           0 :                         throw(SQL,"sql.create_trigger", SQLSTATE(42000) "%s: transaction conflict detected", base);
     593         343 :                 default: {
     594         343 :                         char *buf;
     595         343 :                         sql_rel *r = NULL;
     596         343 :                         allocator *sa = sql->sa;
     597             : 
     598         343 :                         if (!(sql->sa = sa_create(sql->pa))) {
     599           0 :                                 sql->sa = sa;
     600           0 :                                 throw(SQL, "sql.create_trigger", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     601             :                         }
     602         343 :                         if (!(buf = sa_strdup(sql->sa, query))) {
     603           0 :                                 sa_destroy(sql->sa);
     604           0 :                                 sql->sa = sa;
     605           0 :                                 throw(SQL, "sql.create_trigger", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     606             :                         }
     607         343 :                         r = rel_parse(sql, s, buf, m_deps);
     608         343 :                         if (r)
     609         338 :                                 r = sql_processrelation(sql, r, 0, 0, 0, 0);
     610         338 :                         if (r) {
     611         338 :                                 list *blist = rel_dependencies(sql, r);
     612         338 :                                 if (mvc_create_dependencies(sql, blist, tri->base.id, TRIGGER_DEPENDENCY)) {
     613           0 :                                         sa_destroy(sql->sa);
     614           0 :                                         sql->sa = sa;
     615           0 :                                         throw(SQL, "sql.create_trigger", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     616             :                                 }
     617             :                         }
     618         343 :                         sa_destroy(sql->sa);
     619         343 :                         sql->sa = sa;
     620         343 :                         if (!r) {
     621           5 :                                 if (strlen(sql->errstr) > 6 && sql->errstr[5] == '!')
     622           5 :                                         throw(SQL, "sql.create_trigger", "%s", sql->errstr);
     623             :                                 else
     624           0 :                                         throw(SQL, "sql.create_trigger", SQLSTATE(42000) "%s", sql->errstr);
     625             :                         }
     626             :                 }
     627             :         }
     628             :         return MAL_SUCCEED;
     629             : }
     630             : 
     631             : static char *
     632          84 : drop_trigger(mvc *sql, char *sname, char *tname, int if_exists)
     633             : {
     634          84 :         sql_trigger *tri = NULL;
     635          84 :         sql_schema *s = NULL;
     636             : 
     637         168 :         if (!strNil(sname) && !(s = mvc_bind_schema(sql, sname))) {
     638           0 :                 if (if_exists)
     639             :                         return MAL_SUCCEED;
     640           0 :                 throw(SQL,"sql.drop_trigger",SQLSTATE(3F000) "DROP TRIGGER: no such schema '%s'", sname);
     641             :         }
     642           3 :         if (!s)
     643           3 :                 s = mvc_bind_schema(sql, "sys");
     644          84 :         if (s && !mvc_schema_privs(sql, s))
     645           0 :                 throw(SQL,"sql.drop_trigger",SQLSTATE(42000) "DROP TRIGGER: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     646             : 
     647          84 :         if ((tri = mvc_bind_trigger(sql, s, tname)) == NULL) {
     648           0 :                 if (if_exists)
     649             :                         return MAL_SUCCEED;
     650           0 :                 throw(SQL,"sql.drop_trigger", SQLSTATE(3F000) "DROP TRIGGER: unknown trigger %s\n", tname);
     651             :         }
     652          84 :         switch (mvc_drop_trigger(sql, s, tri)) {
     653           0 :                 case -1:
     654           0 :                         throw(SQL,"sql.drop_trigger",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     655           1 :                 case -2:
     656             :                 case -3:
     657           1 :                         throw(SQL,"sql.drop_trigger",SQLSTATE(42000) "DROP TRIGGER: transaction conflict detected");
     658             :                 default:
     659             :                         break;
     660             :         }
     661             :         return MAL_SUCCEED;
     662             : }
     663             : 
     664             : char *
     665        3679 : drop_table(mvc *sql, char *sname, char *tname, int drop_action, int if_exists)
     666             : {
     667        3679 :         sql_schema *s = NULL;
     668        3679 :         sql_table *t = NULL;
     669             : 
     670        3679 :         if (!(s = mvc_bind_schema(sql, sname))) {
     671           0 :                 if (if_exists)
     672             :                         return MAL_SUCCEED;
     673           0 :                 throw(SQL,"sql.drop_table",SQLSTATE(3F000) "DROP TABLE: no such schema '%s'", sname);
     674             :         }
     675        3679 :         if (!(t = mvc_bind_table(sql, s, tname))) {
     676           0 :                 if (if_exists)
     677             :                         return MAL_SUCCEED;
     678           0 :                 throw(SQL,"sql.drop_table", SQLSTATE(42S02) "DROP TABLE: no such table '%s'", tname);
     679             :         }
     680        3679 :         if (isView(t))
     681           1 :                 throw(SQL,"sql.drop_table", SQLSTATE(42000) "DROP TABLE: cannot drop VIEW '%s'", tname);
     682        3678 :         if (t->system)
     683           1 :                 throw(SQL,"sql.drop_table", SQLSTATE(42000) "DROP TABLE: cannot drop system table '%s'", tname);
     684        3677 :         if (!mvc_schema_privs(sql, s) && !(isTempSchema(s) && t->persistence == SQL_LOCAL_TEMP))
     685           2 :                 throw(SQL,"sql.drop_table", SQLSTATE(42000) "DROP TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     686             : 
     687        3675 :         if (!drop_action && t->keys) {
     688        4472 :                 for (node *n = ol_first_node(t->keys); n; n = n->next) {
     689        1252 :                         sql_key *k = n->data;
     690             : 
     691        1252 :                         if (k->type == ukey || k->type == pkey) {
     692         892 :                                 struct os_iter oi;
     693         892 :                                 os_iterator(&oi, k->t->s->keys, sql->session->tr, NULL);
     694       22993 :                                 for (sql_base *b = oi_next(&oi); b; b=oi_next(&oi)) {
     695       22103 :                                         sql_key *fk = (sql_key*)b;
     696       22103 :                                         sql_fkey *rk = (sql_fkey*)b;
     697             : 
     698       22103 :                                         if (fk->type != fkey || rk->rkey != k->base.id)
     699       22084 :                                                 continue;
     700             : 
     701             :                                         /* make sure it is not a self referencing key */
     702          19 :                                         if (fk->t != t)
     703           2 :                                                 throw(SQL,"sql.drop_table", SQLSTATE(40000) "DROP TABLE: FOREIGN KEY %s.%s depends on %s", k->t->base.name, k->base.name, tname);
     704             :                                 }
     705             :                         }
     706             :                 }
     707             :         }
     708             : 
     709        3220 :         if (!drop_action && mvc_check_dependency(sql, t->base.id, TABLE_DEPENDENCY, NULL))
     710          17 :                 throw (SQL,"sql.drop_table",SQLSTATE(42000) "DROP TABLE: unable to drop table %s (there are database objects which depend on it)\n", t->base.name);
     711             : 
     712        3656 :         return mvc_drop_table(sql, s, t, drop_action);
     713             : }
     714             : 
     715             : char *
     716         314 : drop_view(mvc *sql, char *sname, char *tname, int drop_action, int if_exists)
     717             : {
     718         314 :         sql_table *t = NULL;
     719         314 :         sql_schema *ss = NULL;
     720             : 
     721         314 :         if (!(ss = mvc_bind_schema(sql, sname))) {
     722           0 :                 if (if_exists)
     723             :                         return MAL_SUCCEED;
     724           0 :                 throw(SQL,"sql.drop_view", SQLSTATE(3F000) "DROP VIEW: no such schema '%s'", sname);
     725             :         }
     726         314 :         if (!(t = mvc_bind_table(sql, ss, tname))) {
     727           0 :                 if (if_exists)
     728             :                         return MAL_SUCCEED;
     729           0 :                 throw(SQL,"sql.drop_view",SQLSTATE(42S02) "DROP VIEW: unknown view '%s'", tname);
     730             :         }
     731         314 :         if (!mvc_schema_privs(sql, ss) && !(isTempSchema(ss) && t && t->persistence == SQL_LOCAL_TEMP))
     732           0 :                 throw(SQL,"sql.drop_view", SQLSTATE(42000) "DROP VIEW: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), ss->base.name);
     733         314 :         if (!isView(t))
     734           0 :                 throw(SQL,"sql.drop_view", SQLSTATE(42000) "DROP VIEW: unable to drop view '%s': is a table", tname);
     735         314 :         if (t->system)
     736           1 :                 throw(SQL,"sql.drop_view", SQLSTATE(42000) "DROP VIEW: cannot drop system view '%s'", tname);
     737         313 :         if (!drop_action && mvc_check_dependency(sql, t->base.id, VIEW_DEPENDENCY, NULL))
     738           3 :                 throw(SQL,"sql.drop_view", SQLSTATE(42000) "DROP VIEW: cannot drop view '%s', there are database objects which depend on it", t->base.name);
     739         310 :         return mvc_drop_table(sql, ss, t, drop_action);
     740             : }
     741             : 
     742             : static str
     743         150 : drop_key(mvc *sql, char *sname, char *tname, char *kname, int drop_action)
     744             : {
     745         150 :         node *n;
     746         150 :         sql_schema *s = cur_schema(sql);
     747         150 :         sql_table *t = NULL;
     748         150 :         sql_key *key;
     749             : 
     750         150 :         if (!(s = mvc_bind_schema(sql, sname)))
     751           0 :                 throw(SQL,"sql.drop_key", SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", sname);
     752         150 :         if (!mvc_schema_privs(sql, s))
     753           0 :                 throw(SQL,"sql.drop_key", SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     754         150 :         if (!(t = mvc_bind_table(sql, s, tname)))
     755           0 :                 throw(SQL,"sql.drop_key", SQLSTATE(42S02) "ALTER TABLE: no such table '%s'", tname);
     756         150 :         if (!(n = ol_find_name(t->keys, kname)))
     757           3 :                 throw(SQL,"sql.drop_key", SQLSTATE(42000) "ALTER TABLE: no such constraint '%s'", kname);
     758         147 :         key = n->data;
     759         147 :         if (!drop_action && mvc_check_dependency(sql, key->base.id, KEY_DEPENDENCY, NULL))
     760           1 :                 throw(SQL,"sql.drop_key", SQLSTATE(42000) "ALTER TABLE: cannot drop constraint '%s': there are database objects which depend on it", key->base.name);
     761         146 :         switch (mvc_drop_key(sql, s, key, drop_action)) {
     762           0 :                 case -1:
     763           0 :                         throw(SQL,"sql.drop_key",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     764           0 :                 case -2:
     765             :                 case -3:
     766           0 :                         throw(SQL,"sql.drop_key",SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
     767             :                 default:
     768             :                         break;
     769             :         }
     770             :         return MAL_SUCCEED;
     771             : }
     772             : 
     773             : static str
     774         109 : IDXdrop(mvc *sql, const char *sname, const char *tname, const char *iname, void (*func)(BAT *))
     775             : {
     776         109 :         BAT *b = mvc_bind(sql, sname, tname, iname, RDONLY), *nb = NULL;
     777             : 
     778         109 :         if (!b)
     779           0 :                 throw(SQL,"sql.drop_index", SQLSTATE(HY005) "Column can not be accessed");
     780         109 :         if (VIEWtparent(b)) {
     781         109 :                 nb = BBP_desc(VIEWtparent(b));
     782         109 :                 BBPunfix(b->batCacheid);
     783         109 :                 if (!(b = BATdescriptor(nb->batCacheid)))
     784           0 :                         throw(SQL,"sql.drop_index", SQLSTATE(HY005) "Column can not be accessed");
     785             :         }
     786             : 
     787         109 :         func(b);
     788         109 :         BBPunfix(b->batCacheid);
     789         109 :         return MAL_SUCCEED;
     790             : }
     791             : 
     792             : static str
     793         160 : drop_index(mvc *sql, char *sname, char *iname)
     794             : {
     795         160 :         sql_schema *s = NULL;
     796         160 :         sql_idx *i = NULL;
     797         160 :         str msg = MAL_SUCCEED;
     798             : 
     799         160 :         if (!(s = mvc_bind_schema(sql, sname)))
     800           0 :                 throw(SQL,"sql.drop_index", SQLSTATE(3F000) "DROP INDEX: no such schema '%s'", sname);
     801         160 :         if (!mvc_schema_privs(sql, s))
     802           0 :                 throw(SQL,"sql.drop_index", SQLSTATE(42000) "DROP INDEX: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     803         160 :         if (!(i = mvc_bind_idx(sql, s, iname)))
     804           0 :                 throw(SQL,"sql.drop_index", SQLSTATE(42S12) "DROP INDEX: no such index '%s'", iname);
     805         160 :         if (i->key)
     806           1 :                 throw(SQL,"sql.drop_index", SQLSTATE(42S12) "DROP INDEX: cannot drop index '%s', because the constraint '%s' depends on it", iname, i->key->base.name);
     807         159 :         if (i->type == ordered_idx || i->type == imprints_idx) {
     808         109 :                 sql_kc *ic = i->columns->h->data;
     809         109 :                 sql_class icls = ic->c->type.type->eclass;
     810         151 :                 if ((msg = IDXdrop(sql, s->base.name, ic->c->t->base.name, ic->c->base.name, i->type == ordered_idx ? OIDXdestroy : (icls == EC_STRING ? STRMPdestroy : IMPSdestroy))))
     811             :                         return msg;
     812             :         }
     813         159 :         switch (mvc_drop_idx(sql, s, i)) {
     814           0 :                 case -1:
     815           0 :                         throw(SQL,"sql.drop_index",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     816           0 :                 case -2:
     817             :                 case -3:
     818           0 :                         throw(SQL,"sql.drop_index",SQLSTATE(42000) "DROP INDEX: transaction conflict detected");
     819             :                 default:
     820             :                         break;
     821             :         }
     822             :         return NULL;
     823             : }
     824             : 
     825             : static str
     826         313 : create_seq(mvc *sql, char *sname, char *seqname, sql_sequence *seq)
     827             : {
     828         313 :         sql_schema *s = NULL;
     829             : 
     830         313 :         (void)seqname;
     831         313 :         if (!(s = mvc_bind_schema(sql, sname)))
     832           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(3F000) "CREATE SEQUENCE: no such schema '%s'", sname);
     833         313 :         if (!mvc_schema_privs(sql, s))
     834           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: insufficient privileges for '%s' in schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     835         313 :         if (find_sql_sequence(sql->session->tr, s, seq->base.name))
     836           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: name '%s' already in use", seq->base.name);
     837         313 :         if (is_lng_nil(seq->start) || is_lng_nil(seq->minvalue) || is_lng_nil(seq->maxvalue) ||
     838         313 :                            is_lng_nil(seq->increment) || is_lng_nil(seq->cacheinc) || is_bit_nil(seq->cycle))
     839           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: sequence properties must be non-NULL");
     840         313 :         if (seq->start < seq->minvalue)
     841           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: start value is less than the minimum ("LLFMT" < "LLFMT")", seq->start, seq->minvalue);
     842         313 :         if (seq->start > seq->maxvalue)
     843           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: start value is higher than the maximum ("LLFMT" > "LLFMT")", seq->start, seq->maxvalue);
     844         313 :         if (seq->maxvalue < seq->minvalue)
     845             :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: maximum value is less than the minimum ("LLFMT" < "LLFMT")", seq->maxvalue, seq->minvalue);
     846         313 :         if (seq->increment == 0)
     847           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: sequence increment cannot be 0");
     848         313 :         if (seq->cacheinc <= 0)
     849           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: sequence cache must be positive");
     850         313 :         lng calc = llabs(seq->increment) * seq->cacheinc;
     851         313 :         if (calc < llabs(seq->increment) || calc < seq->cacheinc)
     852           0 :                 throw(SQL,"sql.create_seq", SQLSTATE(42000) "CREATE SEQUENCE: The specified range of cached values cannot be set. Either reduce increment or cache value");
     853         313 :         switch (sql_trans_create_sequence(sql->session->tr, s, seq->base.name, seq->start, seq->minvalue, seq->maxvalue, seq->increment, seq->cacheinc, seq->cycle, seq->bedropped)) {
     854           0 :                 case -1:
     855           0 :                         throw(SQL,"sql.create_seq",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     856           0 :                 case -2:
     857             :                 case -3:
     858           0 :                         throw(SQL,"sql.create_seq",SQLSTATE(42000) "CREATE SEQUENCE: transaction conflict detected");
     859             :                 default:
     860             :                         break;
     861             :         }
     862             :         return NULL;
     863             : }
     864             : 
     865             : static str
     866          45 : alter_seq(mvc *sql, char *sname, char *seqname, sql_sequence *seq, const lng *val)
     867             : {
     868          45 :         sql_schema *s = NULL;
     869          45 :         sql_sequence *nseq = NULL;
     870             : 
     871          45 :         (void)seqname;
     872          45 :         if (!(s = mvc_bind_schema(sql, sname)))
     873           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(3F000) "ALTER SEQUENCE: no such schema '%s'", sname);
     874          45 :         if (!mvc_schema_privs(sql, s))
     875           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: insufficient privileges for '%s' in schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     876          45 :         if (!(nseq = find_sql_sequence(sql->session->tr, s, seq->base.name)))
     877           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: no such sequence '%s'", seq->base.name);
     878             :         /* if seq properties hold NULL values, then they should be ignored during the update */
     879             :         /* first alter the known values */
     880          45 :         switch (sql_trans_alter_sequence(sql->session->tr, nseq, seq->minvalue, seq->maxvalue, seq->increment, seq->cacheinc, seq->cycle)) {
     881           0 :                 case -1:
     882           0 :                         throw(SQL,"sql.alter_seq",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     883           0 :                 case -2:
     884             :                 case -3:
     885           0 :                         throw(SQL,"sql.alter_seq",SQLSTATE(42000) "ALTER SEQUENCE: transaction conflict detected");
     886             :                 default:
     887          45 :                         break;
     888             :         }
     889          45 :         if (nseq->maxvalue < nseq->minvalue)
     890           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: maximum value is less than the minimum ("LLFMT" < "LLFMT")", nseq->maxvalue, nseq->minvalue);
     891          45 :         if (nseq->increment == 0)
     892           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: sequence increment cannot be 0");
     893          45 :         if (nseq->cacheinc <= 0)
     894           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: sequence cache must be positive");
     895          45 :         lng calc = llabs(nseq->increment) * nseq->cacheinc;
     896          45 :         if (calc < llabs(nseq->increment) || calc < nseq->cacheinc)
     897           0 :                 throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: The specified range of cached values cannot be set. Either reduce increment or cache value");
     898          45 :         if (val) {
     899          45 :                 if (is_lng_nil(*val))
     900           0 :                         throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: sequence value must be non-NULL");
     901          45 :                 if (*val < nseq->minvalue)
     902           1 :                         throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: cannot set sequence start to a value less than the minimum ("LLFMT" < "LLFMT")", *val, nseq->minvalue);
     903          44 :                 if (*val > nseq->maxvalue)
     904           1 :                         throw(SQL,"sql.alter_seq", SQLSTATE(42000) "ALTER SEQUENCE: cannot set sequence start to a value higher than the maximum ("LLFMT" > "LLFMT")", *val, nseq->maxvalue);
     905          43 :                 switch (sql_trans_sequence_restart(sql->session->tr, nseq, *val)) {
     906           0 :                         case -1:
     907           0 :                                 throw(SQL,"sql.alter_seq",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     908           0 :                         case -2:
     909             :                         case -3:
     910           0 :                                 throw(SQL,"sql.alter_seq",SQLSTATE(42000) "ALTER SEQUENCE: transaction conflict detected");
     911           0 :                         case -4:
     912           0 :                                 throw(SQL,"sql.alter_seq",SQLSTATE(42000) "ALTER SEQUENCE: failed to restart sequence %s.%s", sname, nseq->base.name);
     913             :                         default:
     914             :                                 break;
     915             :                 }
     916             :         }
     917             :         return MAL_SUCCEED;
     918             : }
     919             : 
     920             : static str
     921          32 : drop_seq(mvc *sql, char *sname, char *name)
     922             : {
     923          32 :         sql_schema *s = NULL;
     924          32 :         sql_sequence *seq = NULL;
     925             : 
     926          32 :         if (!(s = mvc_bind_schema(sql, sname)))
     927           0 :                 throw(SQL,"sql.drop_seq", SQLSTATE(3F000) "DROP SEQUENCE: no such schema '%s'", sname);
     928          32 :         if (!mvc_schema_privs(sql, s))
     929           0 :                 throw(SQL,"sql.drop_seq", SQLSTATE(42000) "DROP SEQUENCE: insufficient privileges for '%s' in schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
     930          32 :         if (!(seq = find_sql_sequence(sql->session->tr, s, name)))
     931           0 :                 throw(SQL,"sql.drop_seq", SQLSTATE(42M35) "DROP SEQUENCE: no such sequence '%s'", name);
     932          32 :         if (mvc_check_dependency(sql, seq->base.id, BEDROPPED_DEPENDENCY, NULL))
     933           2 :                 throw(SQL,"sql.drop_seq", SQLSTATE(2B000) "DROP SEQUENCE: unable to drop sequence %s (there are database objects which depend on it)\n", seq->base.name);
     934             : 
     935          30 :         switch (sql_trans_drop_sequence(sql->session->tr, s, seq, 0)) {
     936           0 :                 case -1:
     937           0 :                         throw(SQL,"sql.drop_seq",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     938           0 :                 case -2:
     939             :                 case -3:
     940           0 :                         throw(SQL,"sql.drop_seq",SQLSTATE(42000) "DROP SEQUENCE: transaction conflict detected");
     941             :                 default:
     942             :                         break;
     943             :         }
     944             :         return NULL;
     945             : }
     946             : 
     947             : static str
     948         669 : drop_func(mvc *sql, char *sname, char *name, sqlid fid, sql_ftype type, int action)
     949             : {
     950         669 :         sql_schema *s = NULL;
     951         669 :         char *F = NULL, *fn = NULL;
     952         669 :         int res = 0;
     953             : 
     954         669 :         FUNC_TYPE_STR(type, F, fn)
     955             : 
     956         669 :         if (!(s = mvc_bind_schema(sql, sname))) {
     957           0 :                 if (fid == -2) /* if exists option */
     958             :                         return MAL_SUCCEED;
     959           0 :                 throw(SQL,"sql.drop_func", SQLSTATE(3F000) "DROP %s: no such schema '%s'", F, sname);
     960             :         }
     961         669 :         if (!mvc_schema_privs(sql, s))
     962           0 :                 throw(SQL,"sql.drop_func", SQLSTATE(42000) "DROP %s: access denied for %s to schema '%s'", F, get_string_global_var(sql, "current_user"), s->base.name);
     963         669 :         if (fid >= 0) {
     964         638 :                 sql_base *b = os_find_id(s->funcs, sql->session->tr, fid);
     965         638 :                 if (b) {
     966         638 :                         sql_func *func = (sql_func*)b;
     967             : 
     968         692 :                         if (!action && mvc_check_dependency(sql, func->base.id, !IS_PROC(func) ? FUNC_DEPENDENCY : PROC_DEPENDENCY, NULL))
     969           4 :                                 throw(SQL,"sql.drop_func", SQLSTATE(42000) "DROP %s: there are database objects dependent on %s %s;", F, fn, func->base.name);
     970         634 :                         res = mvc_drop_func(sql, s, func, action);
     971             :                 }
     972          31 :         } else if (fid == -2) { /* if exists option */
     973             :                 return MAL_SUCCEED;
     974             :         } else { /* fid == -1 */
     975          31 :                 list *list_func = sql_find_funcs_by_name(sql, s->base.name, name, type, false);
     976             : 
     977          31 :                 if (!list_empty(list_func))
     978          74 :                         for (node *n = list_func->h; n; n = n->next) {
     979          43 :                                 sql_func *func = n->data;
     980             : 
     981          56 :                                 if (!action && mvc_check_dependency(sql, func->base.id, !IS_PROC(func) ? FUNC_DEPENDENCY : PROC_DEPENDENCY, list_func)) {
     982           0 :                                         list_destroy(list_func);
     983           0 :                                         throw(SQL,"sql.drop_func", SQLSTATE(42000) "DROP %s: there are database objects dependent on %s %s;", F, fn, func->base.name);
     984             :                                 }
     985             :                         }
     986          31 :                 res = mvc_drop_all_func(sql, s, list_func, action);
     987          31 :                 list_destroy(list_func);
     988             :         }
     989             : 
     990         665 :         switch (res) {
     991           0 :                 case -1:
     992           0 :                         throw(SQL,"sql.drop_func",SQLSTATE(HY013) MAL_MALLOC_FAIL);
     993           0 :                 case -2:
     994             :                 case -3:
     995           0 :                         throw(SQL,"sql.drop_func",SQLSTATE(42000) "DROP %s: transaction conflict detected", F);
     996             :                 default:
     997             :                         break;
     998             :         }
     999             :         return MAL_SUCCEED;
    1000             : }
    1001             : 
    1002             : static int
    1003           6 : args_cmp(sql_arg *a1, sql_arg *a2)
    1004             : {
    1005           6 :         if (a1->inout != a2->inout)
    1006             :                 return -1;
    1007           6 :         if (strcmp(a1->name, a2->name) != 0)
    1008             :                 return -1;
    1009           6 :         return subtype_cmp(&a1->type, &a2->type);
    1010             : }
    1011             : 
    1012             : static char *
    1013      120296 : create_func(mvc *sql, char *sname, char *fname, sql_func *f, int replace)
    1014             : {
    1015      120296 :         sql_func *nf;
    1016      120296 :         sql_subfunc *sf;
    1017      120296 :         sql_schema *s = NULL;
    1018      120296 :         char *F = NULL, *fn = NULL, *base = replace ? "CREATE OR REPLACE" : "CREATE";
    1019             : 
    1020      120296 :         FUNC_TYPE_STR(f->type, F, fn)
    1021             : 
    1022      120296 :         (void) fn;
    1023      120296 :         if (!(s = mvc_bind_schema(sql, sname)))
    1024           0 :                 throw(SQL,"sql.create_func", SQLSTATE(3F000) "%s %s: no such schema '%s'", base, F, sname);
    1025      120296 :         if (!mvc_schema_privs(sql, s))
    1026           0 :                 throw(SQL,"sql.create_func", SQLSTATE(42000) "%s %s: access denied for %s to schema '%s'", base, F, get_string_global_var(sql, "current_user"), s->base.name);
    1027             : 
    1028      120296 :         if (replace) {
    1029          68 :                 list *tl = sa_list(sql->sa);
    1030          68 :                 if (!list_empty(f->ops)) {
    1031          79 :                         for (node *n = f->ops->h ; n ; n = n->next ) {
    1032          45 :                                 sql_arg *arg = n->data;
    1033             : 
    1034          45 :                                 list_append(tl, &arg->type);
    1035             :                         }
    1036             :                 }
    1037             : 
    1038          68 :                 if ((sf = sql_bind_func_(sql, s->base.name, fname, tl, f->type, false, true)) != NULL) {
    1039          15 :                         sql_func *sff = sf->func;
    1040             : 
    1041          15 :                         if (!sff->s || sff->system)
    1042           0 :                                 throw(SQL,"sql.create_func", SQLSTATE(42000) "%s %s: not allowed to replace system %s %s;", base, F, fn, sff->base.name);
    1043             : 
    1044             :                         /* if all function parameters are the same, return */
    1045          15 :                         if (sff->lang == f->lang && sff->type == f->type &&
    1046          15 :                                 sff->varres == f->varres && sff->vararg == f->vararg &&
    1047          18 :                                 ((!sff->query && !f->query) || (sff->query && f->query && strcmp(sff->query, f->query) == 0)) &&
    1048           6 :                                 list_cmp(sff->res, f->res, (fcmp) &args_cmp) == 0 &&
    1049           3 :                                 list_cmp(sff->ops, f->ops, (fcmp) &args_cmp) == 0)
    1050             :                                 return MAL_SUCCEED;
    1051             : 
    1052          12 :                         if (mvc_check_dependency(sql, sff->base.id, !IS_PROC(sff) ? FUNC_DEPENDENCY : PROC_DEPENDENCY, NULL))
    1053           0 :                                 throw(SQL,"sql.create_func", SQLSTATE(42000) "%s %s: there are database objects dependent on %s %s;", base, F, fn, sff->base.name);
    1054          12 :                         switch (mvc_drop_func(sql, s, sff, 0)) {
    1055           0 :                                 case -1:
    1056           0 :                                         throw(SQL,"sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1057           1 :                                 case -2:
    1058             :                                 case -3:
    1059           1 :                                         throw(SQL,"sql.create_func", SQLSTATE(42000) "%s %s: transaction conflict detected", base, F);
    1060             :                                 default:
    1061             :                                         break;
    1062             :                         }
    1063             :                 } else {
    1064          53 :                         sql->session->status = 0; /* if the function was not found clean the error */
    1065          53 :                         sql->errstr[0] = '\0';
    1066             :                 }
    1067             :         }
    1068      120292 :         switch (mvc_create_func(&nf, sql, NULL, s, f->base.name, f->ops, f->res, f->type, f->lang, f->mod, f->imp, f->query, f->varres, f->vararg, f->system, f->side_effect)) {
    1069           0 :                 case -1:
    1070           0 :                         throw(SQL,"sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1071           1 :                 case -2:
    1072             :                 case -3:
    1073           1 :                         throw(SQL,"sql.create_func", SQLSTATE(42000) "%s %s: transaction conflict detected", base, F);
    1074             :                 default:
    1075      120291 :                         break;
    1076             :         }
    1077      120291 :         switch (nf->lang) {
    1078      112459 :         case FUNC_LANG_MAL:
    1079      112459 :                 assert(nf->imp);
    1080      112459 :                 nf->instantiated = TRUE; /* MAL functions get instantiated while being created */
    1081             :                 /* fall through */
    1082      120062 :         case FUNC_LANG_SQL: {
    1083      120062 :                 char *buf;
    1084      120062 :                 sql_rel *r = NULL;
    1085      120062 :                 allocator *sa = sql->sa;
    1086             : 
    1087      120062 :                 assert(nf->query);
    1088      120062 :                 if (!(sql->sa = sa_create(sql->pa))) {
    1089           0 :                         sql->sa = sa;
    1090           0 :                         throw(SQL, "sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1091             :                 }
    1092      120062 :                 if (!(buf = sa_strdup(sql->sa, nf->query))) {
    1093           0 :                         sa_destroy(sql->sa);
    1094           0 :                         sql->sa = sa;
    1095           0 :                         throw(SQL, "sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1096             :                 }
    1097      120062 :                 r = rel_parse(sql, s, buf, m_deps);
    1098      120062 :                 if (r)
    1099      120062 :                         r = sql_processrelation(sql, r, 0, 0, 0, 0);
    1100      120062 :                 if (r) {
    1101      120062 :                         node *n;
    1102      120062 :                         list *blist = rel_dependencies(sql, r);
    1103             : 
    1104      120062 :                         if (!f->vararg && f->ops) {
    1105      308406 :                                 for (n = f->ops->h; n; n = n->next) {
    1106      188344 :                                         sql_arg *a = n->data;
    1107             : 
    1108      188344 :                                         if (a->type.type->s && mvc_create_dependency(sql, &a->type.type->base, nf->base.id, TYPE_DEPENDENCY)) {
    1109           0 :                                                 sa_destroy(sql->sa);
    1110           0 :                                                 sql->sa = sa;
    1111           0 :                                                 throw(SQL, "sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1112             :                                         }
    1113             :                                 }
    1114             :                         }
    1115      120062 :                         if (!f->varres && f->res) {
    1116      258400 :                                 for (n = f->res->h; n; n = n->next) {
    1117      156621 :                                         sql_arg *a = n->data;
    1118             : 
    1119      156621 :                                         if (a->type.type->s && mvc_create_dependency(sql, &a->type.type->base, nf->base.id, TYPE_DEPENDENCY)) {
    1120           0 :                                                 sa_destroy(sql->sa);
    1121           0 :                                                 sql->sa = sa;
    1122           0 :                                                 throw(SQL, "sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1123             :                                         }
    1124             :                                 }
    1125             :                         }
    1126      134982 :                         if (mvc_create_dependencies(sql, blist, nf->base.id, !IS_PROC(f) ? FUNC_DEPENDENCY : PROC_DEPENDENCY)) {
    1127           0 :                                 sa_destroy(sql->sa);
    1128           0 :                                 sql->sa = sa;
    1129           0 :                                 throw(SQL, "sql.create_func", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1130             :                         }
    1131             :                 }
    1132      120062 :                 sa_destroy(sql->sa);
    1133      120062 :                 sql->sa = sa;
    1134      120062 :                 if (!r) {
    1135           0 :                         if (strlen(sql->errstr) > 6 && sql->errstr[5] == '!')
    1136           0 :                                 throw(SQL, "sql.create_func", "%s", sql->errstr);
    1137             :                         else
    1138           0 :                                 throw(SQL, "sql.create_func", SQLSTATE(42000) "%s", sql->errstr);
    1139             :                 }
    1140             :         }
    1141             :         default:
    1142             :                 break;
    1143             :         }
    1144             :         return MAL_SUCCEED;
    1145             : }
    1146             : 
    1147             : str
    1148        1369 : alter_table(Client cntxt, mvc *sql, char *sname, sql_table *t)
    1149             : {
    1150        1369 :         sql_schema *s = NULL;
    1151        1369 :         sql_table *nt = NULL;
    1152        1369 :         node *n;
    1153             : 
    1154        1369 :         if (!(s = mvc_bind_schema(sql, sname)))
    1155           0 :                 throw(SQL,"sql.alter_table",
    1156             :                           SQLSTATE(3F000) "ALTER TABLE: no such schema '%s'", sname);
    1157             : 
    1158        1369 :         if (!mvc_schema_privs(sql, s) &&
    1159           0 :                 !(isTempSchema(s) && t->persistence == SQL_LOCAL_TEMP))
    1160           0 :                 throw(SQL,"sql.alter_table",
    1161             :                           SQLSTATE(42000) "ALTER TABLE: insufficient privileges for"
    1162             :                           " user '%s' in schema '%s'",
    1163             :                           get_string_global_var(sql, "current_user"), s->base.name);
    1164             : 
    1165        1369 :         if (!(nt = mvc_bind_table(sql, s, t->base.name)))
    1166           0 :                 throw(SQL,"sql.alter_table",
    1167             :                           SQLSTATE(42S02) "ALTER TABLE: no such table '%s'", t->base.name);
    1168             : 
    1169        1369 :         sql_table *gt = NULL;
    1170        1369 :         if (nt && isTempTable(nt)) {
    1171          34 :                 gt = (sql_table*)os_find_id(s->tables, sql->session->tr, nt->base.id);
    1172          34 :                 if (gt)
    1173        1369 :                         nt = gt;
    1174             :         }
    1175             : 
    1176             :         /* First check if all the changes are allowed */
    1177        1369 :         if (t->idxs) {
    1178             :                 /* only one pkey */
    1179        1369 :                 if (nt->pkey) {
    1180        1423 :                         for (n = ol_first_node(t->idxs); n; n = n->next) {
    1181         696 :                                 sql_idx *i = n->data;
    1182         696 :                                 if (!i->base.new || i->base.deleted)
    1183           0 :                                         continue;
    1184         696 :                                 if (i->key && i->key->type == pkey)
    1185           3 :                                         throw(SQL,"sql.alter_table",
    1186             :                                                   SQLSTATE(40000) "CONSTRAINT PRIMARY KEY: a"
    1187             :                                                   " table can have only one PRIMARY KEY\n");
    1188             :                         }
    1189             :                 }
    1190             :         }
    1191             : 
    1192       21092 :         for (n = ol_first_node(t->columns); n; n = n->next) {
    1193             :                 /* null or default value changes */
    1194       19848 :                 sql_column *c = n->data;
    1195             : 
    1196       19848 :                 if (c->base.new)
    1197             :                         break;
    1198             : 
    1199       19741 :                 sql_column *nc = mvc_bind_column(sql, nt, c->base.name);
    1200       19741 :                 if (c->base.deleted) {
    1201          68 :                         switch (mvc_drop_column(sql, nt, nc, c->drop_action)) {
    1202           0 :                                 case -1:
    1203           0 :                                         throw(SQL,"sql.alter_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1204           1 :                                 case -2:
    1205             :                                 case -3:
    1206           1 :                                         throw(SQL,"sql.alter_table",
    1207             :                                                   SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
    1208             :                                 default:
    1209          67 :                                         break;
    1210             :                         }
    1211          67 :                         continue;
    1212             :                 }
    1213       19673 :                 if (c->null != nc->null && isTable(nt)) {
    1214          99 :                         if (c->null && nt->pkey) { /* check for primary keys based on this column */
    1215           2 :                                 node *m;
    1216           4 :                                 for (m = nt->pkey->k.columns->h; m; m = m->next) {
    1217           4 :                                         sql_kc *kc = m->data;
    1218             : 
    1219           4 :                                         if (kc->c->base.id == c->base.id)
    1220           2 :                                                 throw(SQL,"sql.alter_table", SQLSTATE(40000) "NOT NULL CONSTRAINT: cannot remove NOT NULL CONSTRAINT for column '%s' part of the PRIMARY KEY\n", c->base.name);
    1221             :                                 }
    1222             :                         }
    1223          97 :                         switch (mvc_null(sql, nc, c->null)) {
    1224           0 :                                 case -1:
    1225           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1226           1 :                                 case -2:
    1227             :                                 case -3:
    1228           1 :                                         throw(SQL,"sql.alter_table", SQLSTATE(42000) "NOT NULL CONSTRAINT: transaction conflict detected");
    1229             :                                 default:
    1230          96 :                                         break;
    1231             :                         }
    1232             :                         /* for non empty check for nulls */
    1233          96 :                         sqlstore *store = sql->session->tr->store;
    1234          96 :                         if (c->null == 0) {
    1235          94 :                                 const void *nilptr = ATOMnilptr(c->type.type->localtype);
    1236          94 :                                 rids *nils = store->table_api.rids_select(sql->session->tr, nc, nilptr, NULL, NULL);
    1237          94 :                                 if (!nils)
    1238           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1239          94 :                                 int has_nils = !is_oid_nil(store->table_api.rids_next(nils));
    1240             : 
    1241          94 :                                 store->table_api.rids_destroy(nils);
    1242          94 :                                 if (has_nils)
    1243          11 :                                         throw(SQL,"sql.alter_table", SQLSTATE(40002) "ALTER TABLE: NOT NULL constraint violated for column %s.%s", c->t->base.name, c->base.name);
    1244             :                         }
    1245             :                 }
    1246       19659 :                 if ((c->def || nc->def) && (!c->def || !nc->def || strcmp(c->def, nc->def) != 0)) {
    1247          23 :                         switch (mvc_default(sql, nc, c->def)) {
    1248           0 :                                 case -1:
    1249           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1250           0 :                                 case -2:
    1251             :                                 case -3:
    1252           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(42000) "DEFAULT: transaction conflict detected");
    1253             :                                 default:
    1254             :                                         break;
    1255             :                         }
    1256             :                 }
    1257             : 
    1258       19659 :                 if ((c->storage_type || nc->storage_type) && (!c->storage_type || !nc->storage_type || strcmp(c->storage_type, nc->storage_type) != 0)) {
    1259           0 :                         if (c->t->access == TABLE_WRITABLE)
    1260           0 :                                 throw(SQL,"sql.alter_table", SQLSTATE(40002) "ALTER TABLE: SET STORAGE for column %s.%s only allowed on READ or INSERT ONLY tables", c->t->base.name, c->base.name);
    1261           0 :                         switch (mvc_storage(sql, nc, c->storage_type)) {
    1262           0 :                                 case -1:
    1263           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1264           0 :                                 case -2:
    1265             :                                 case -3:
    1266           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(42000) "ALTER TABLE: SET STORAGE transaction conflict detected");
    1267             :                                 default:
    1268             :                                         break;
    1269             :                         }
    1270             :                 }
    1271             :         }
    1272             :         /* handle new columns */
    1273        1456 :         for (; n; n = n->next) {
    1274             :                 /* propagate alter table .. add column */
    1275         107 :                 sql_column *c = n->data;
    1276             : 
    1277         107 :                 if (c->base.deleted) /* skip */
    1278           0 :                         continue;
    1279         107 :                 switch (mvc_copy_column(sql, nt, c, NULL)) {
    1280           0 :                         case -1:
    1281           0 :                                 throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1282           2 :                         case -2:
    1283             :                         case -3:
    1284           2 :                                 throw(SQL,"sql.alter_table", SQLSTATE(42000) "ALTER TABLE: %s_%s_%s conflicts with another transaction", s->base.name, t->base.name, c->base.name);
    1285             :                         default:
    1286             :                                 break;
    1287             :                 }
    1288             :         }
    1289        1349 :         if (t->idxs) {
    1290             :                 /* alter drop index */
    1291        1349 :                 if (t->idxs)
    1292        2457 :                         for (n = ol_first_node(t->idxs); n; n = n->next) {
    1293        1108 :                                 sql_idx *i = n->data;
    1294        1108 :                                 if (i->base.new || !i->base.deleted)
    1295        1108 :                                         continue;
    1296           0 :                                 sql_idx *ni = mvc_bind_idx(sql, s, i->base.name);
    1297           0 :                                 if (ni == NULL)
    1298           0 :                                         throw(SQL, "sql.alter_table", "Couldn't bind index %s", i->base.name);
    1299           0 :                                 switch (mvc_drop_idx(sql, s, ni)) {
    1300           0 :                                         case -1:
    1301           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1302           0 :                                         case -2:
    1303             :                                         case -3:
    1304           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
    1305             :                                         default:
    1306             :                                                 break;
    1307             :                                 }
    1308             :                         }
    1309             :                 /* alter add index */
    1310        2440 :                 for (n = ol_first_node(t->idxs); n; n = n->next) {
    1311        1108 :                         sql_idx *i = n->data;
    1312        1108 :                         BAT *b = NULL, *nb = NULL;
    1313             : 
    1314        1108 :                         if (!i->base.new || i->base.deleted)
    1315           0 :                                 continue;
    1316             : 
    1317        1108 :                         if (i->type == ordered_idx) {
    1318          77 :                                 sql_kc *ic = i->columns->h->data;
    1319          77 :                                 if (!(b = mvc_bind(sql, nt->s->base.name, nt->base.name, ic->c->base.name, RDONLY)))
    1320           0 :                                         throw(SQL,"sql.alter_table",SQLSTATE(HY005) "Cannot access ordered index %s_%s_%s", s->base.name, t->base.name, i->base.name);
    1321          77 :                                 if (VIEWtparent(b)) {
    1322          77 :                                         nb = BBP_desc(VIEWtparent(b));
    1323          77 :                                         BBPunfix(b->batCacheid);
    1324          77 :                                         if (!(b = BATdescriptor(nb->batCacheid)))
    1325           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(HY005) "Cannot access ordered index %s_%s_%s", s->base.name, t->base.name, i->base.name);
    1326             :                                 }
    1327          77 :                                 char *msg = OIDXcreateImplementation(cntxt, newBatType(b->ttype), b, -1);
    1328          77 :                                 BBPunfix(b->batCacheid);
    1329          77 :                                 if (msg != MAL_SUCCEED) {
    1330           0 :                                         char *smsg = createException(SQL,"sql.alter_table", SQLSTATE(40002) "CREATE ORDERED INDEX: %s", msg);
    1331           0 :                                         freeException(msg);
    1332           0 :                                         return smsg;
    1333             :                                 }
    1334        1031 :                         } else if (i->type == imprints_idx) {
    1335          71 :                                 gdk_return r;
    1336          71 :                                 sql_kc *ic = i->columns->h->data;
    1337          71 :                                 if (!(b = mvc_bind(sql, nt->s->base.name, nt->base.name, ic->c->base.name, RDONLY)))
    1338           0 :                                         throw(SQL,"sql.alter_table",SQLSTATE(HY005) "Cannot access imprints index %s_%s_%s", s->base.name, t->base.name, i->base.name);
    1339          71 :                                 if (VIEWtparent(b)) {
    1340          71 :                                         nb = BBP_desc(VIEWtparent(b));
    1341          71 :                                         BBPunfix(b->batCacheid);
    1342          71 :                                         if (!(b = BATdescriptor(nb->batCacheid)))
    1343           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(HY005) "Cannot access imprints index %s_%s_%s", s->base.name, t->base.name, i->base.name);
    1344             :                                 }
    1345          71 :                                 if(b->ttype == TYPE_str) {
    1346          11 :                                         if (t->access != TABLE_READONLY) {
    1347           5 :                                                 BBPunfix(b->batCacheid);
    1348           5 :                                                 throw(SQL, "sql.alter_TABLE", SQLSTATE(HY005) "Cannot create string imprint index %s on non read only table %s.%s", i->base.name, s->base.name, t->base.name);
    1349             :                                         }
    1350             : 
    1351             :                                         /* We signal that we want a strimp on b. It will be created the next time it is needed, i.e. by
    1352             :                                          * PCRElikeselect.
    1353             :                                          */
    1354           6 :                                         r = BATsetstrimps(b);
    1355             :                                 }
    1356             :                                 else {
    1357          60 :                                         r = BATimprints(b);
    1358             :                                 }
    1359             : 
    1360          66 :                                 BBPunfix(b->batCacheid);
    1361          66 :                                 if (r != GDK_SUCCEED)
    1362           9 :                                         throw(SQL, "sql.alter_table", GDK_EXCEPTION);
    1363             :                         }
    1364        1094 :                         switch (mvc_copy_idx(sql, nt, i, NULL)) {
    1365           0 :                                 case -1:
    1366           0 :                                         throw(SQL,"sql.alter_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1367           3 :                                 case -2:
    1368             :                                 case -3:
    1369           3 :                                         throw(SQL,"sql.alter_table", SQLSTATE(42000) "ALTER TABLE: %s_%s_%s conflicts with another transaction", s->base.name, t->base.name, i->base.name);
    1370             :                                 default:
    1371             :                                         break;
    1372             :                         }
    1373             :                 }
    1374             :         }
    1375        1332 :         if (t->keys) {
    1376             :                 /* alter drop key */
    1377        2117 :                 for (n = ol_first_node(t->keys); n; n = n->next) {
    1378         785 :                         sql_key *k = n->data;
    1379             : 
    1380         785 :                         if ((!k->base.new && !k->base.deleted) || (k->base.new && k->base.deleted))
    1381           0 :                                 continue;
    1382         785 :                         if (k->base.deleted) {
    1383           0 :                                 sql_key *nk = mvc_bind_key(sql, s, k->base.name);
    1384           0 :                                 if (nk) {
    1385           0 :                                         switch (mvc_drop_key(sql, s, nk, k->drop_action)) {
    1386           0 :                                                 case -1:
    1387           0 :                                                         throw(SQL,"sql.alter_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1388           0 :                                                 case -2:
    1389             :                                                 case -3:
    1390           0 :                                                         throw(SQL,"sql.alter_table",SQLSTATE(42000) "ALTER TABLE: %s_%s_%s conflicts with another transaction", s->base.name, t->base.name, k->base.name);
    1391             :                                                 default:
    1392             :                                                         break;
    1393             :                                         }
    1394             :                                 }
    1395             :                         } else { /* new */
    1396         785 :                                 str err;
    1397         785 :                                 if ((err = sql_partition_validate_key(sql, t, k, "ALTER")))
    1398           0 :                                         return err;
    1399         785 :                                 switch (mvc_copy_key(sql, nt, k, NULL)) {
    1400           0 :                                         case -1:
    1401           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1402           0 :                                         case -2:
    1403             :                                         case -3:
    1404           0 :                                                 throw(SQL,"sql.alter_table",SQLSTATE(42000) "ALTER TABLE: %s_%s_%s conflicts with another transaction", s->base.name, t->base.name, k->base.name);
    1405             :                                         default:
    1406             :                                                 break;
    1407             :                                 }
    1408             :                         }
    1409             :                 }
    1410             :         }
    1411             :         return MAL_SUCCEED;
    1412             : }
    1413             : 
    1414             : /* the MAL wrappers */
    1415             : str
    1416         313 : SQLcreate_seq(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1417         313 : {       mvc *sql = NULL;
    1418         313 :         str msg;
    1419         313 :         str sname = *getArgReference_str(stk, pci, 1);
    1420         313 :         str seqname = *getArgReference_str(stk, pci, 2);
    1421         313 :         sql_sequence *s = *(sql_sequence **) getArgReference(stk, pci, 3);
    1422             : 
    1423         313 :         initcontext();
    1424         313 :         msg = create_seq(sql, sname, seqname, s);
    1425         313 :         return msg;
    1426             : }
    1427             : 
    1428             : str
    1429          46 : SQLalter_seq(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1430          46 : {       mvc *sql = NULL;
    1431          46 :         str msg = MAL_SUCCEED;
    1432          46 :         str sname = *getArgReference_str(stk, pci, 1);
    1433          46 :         str seqname = *getArgReference_str(stk, pci, 2);
    1434          46 :         sql_sequence *s = *(sql_sequence **) getArgReference(stk, pci, 3);
    1435          46 :         lng *val = NULL;
    1436          46 :         BAT *b = NULL;
    1437          46 :         BATiter bi = {0};
    1438             : 
    1439          46 :         initcontext();
    1440          46 :         if (getArgType(mb, pci, 4) == TYPE_lng)
    1441          46 :                 val = getArgReference_lng(stk, pci, 4);
    1442           0 :         else if (isaBatType(getArgType(mb, pci, 4))) {
    1443           0 :                 bat *bid = getArgReference_bat(stk, pci, 4);
    1444             : 
    1445           0 :                 if (!(b = BATdescriptor(*bid)))
    1446           0 :                         throw(SQL, "sql.alter_seq", SQLSTATE(HY002) RUNTIME_OBJECT_MISSING);
    1447           0 :                 if (BATcount(b) != 1) {
    1448           0 :                         BBPunfix(b->batCacheid);
    1449           0 :                         throw(SQL, "sql.alter_seq", SQLSTATE(42000) "Only one value allowed to alter a sequence value");
    1450             :                 }
    1451           0 :                 bi = bat_iterator(b);
    1452           0 :                 if (getBatType(getArgType(mb, pci, 4)) == TYPE_lng) {
    1453           0 :                         val = (lng*)bi.base;
    1454             :                 }
    1455             :         }
    1456             : 
    1457          46 :         if (val == NULL || is_lng_nil(*val))
    1458           1 :                 msg = createException(SQL,"sql.alter_seq", SQLSTATE(42M36) "ALTER SEQUENCE: cannot (re)start with NULL");
    1459             :         else
    1460          45 :                 msg = alter_seq(sql, sname, seqname, s, val);
    1461             : 
    1462          46 :         if (b) {
    1463           0 :                 bat_iterator_end(&bi);
    1464           0 :                 BBPunfix(b->batCacheid);
    1465             :         }
    1466             :         return msg;
    1467             : }
    1468             : 
    1469             : str
    1470          32 : SQLdrop_seq(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1471          32 : {       mvc *sql = NULL;
    1472          32 :         str msg = MAL_SUCCEED;
    1473          32 :         str sname = *getArgReference_str(stk, pci, 1);
    1474          32 :         str name = *getArgReference_str(stk, pci, 2);
    1475             : 
    1476          32 :         initcontext();
    1477          32 :         msg = drop_seq(sql, sname, name);
    1478          32 :         return msg;
    1479             : }
    1480             : 
    1481             : str
    1482        1082 : SQLcreate_schema(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1483        1082 : {       mvc *sql = NULL;
    1484        1082 :         str msg = MAL_SUCCEED;
    1485        1082 :         str sname = *getArgReference_str(stk, pci, 1);
    1486        1082 :         str name = SaveArgReference(stk, pci, 2);
    1487        1082 :         sqlid auth_id;
    1488             : 
    1489        1082 :         initcontext();
    1490        1082 :         auth_id = sql->role_id;
    1491        1120 :         if (!strNil(name) && (auth_id = sql_find_auth(sql, name)) < 0)
    1492           0 :                 throw(SQL,"sql.create_schema", SQLSTATE(42M32) "CREATE SCHEMA: no such authorization '%s'", name);
    1493        1082 :         if (sql->user_id != USER_MONETDB && sql->role_id != ROLE_SYSADMIN)
    1494           0 :                 throw(SQL,"sql.create_schema", SQLSTATE(42000) "CREATE SCHEMA: insufficient privileges for user '%s'", get_string_global_var(sql, "current_user"));
    1495        1082 :         if (mvc_bind_schema(sql, sname))
    1496           0 :                 throw(SQL,"sql.create_schema", SQLSTATE(3F000) "CREATE SCHEMA: name '%s' already in use", sname);
    1497        1082 :         switch (mvc_create_schema(sql, sname, auth_id, sql->user_id)) {
    1498           0 :                 case -1:
    1499           0 :                         throw(SQL,"sql.create_schema",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1500           1 :                 case -2:
    1501             :                 case -3:
    1502           1 :                         throw(SQL,"sql.create_schema",SQLSTATE(42000) "CREATE SCHEMA: transaction conflict detected");
    1503             :                 default:
    1504             :                         break;
    1505             :         }
    1506             :         return msg;
    1507             : }
    1508             : 
    1509             : str
    1510         191 : SQLdrop_schema(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1511             : {
    1512         191 :         mvc *sql = NULL;
    1513         191 :         str msg = MAL_SUCCEED;
    1514         191 :         str sname = *getArgReference_str(stk, pci, 1);
    1515         191 :         int if_exists = *getArgReference_int(stk, pci, 2);
    1516         191 :         int action = *getArgReference_int(stk, pci, 3);
    1517         191 :         sql_schema *s;
    1518             : 
    1519         191 :         initcontext();
    1520         191 :         s = mvc_bind_schema(sql, sname);
    1521         191 :         if (!s) {
    1522          12 :                 if (!if_exists)
    1523           8 :                         throw(SQL,"sql.drop_schema",SQLSTATE(3F000) "DROP SCHEMA: name %s does not exist", sname);
    1524             :                 return MAL_SUCCEED;
    1525             :         }
    1526         179 :         sql_trans *tr = sql->session->tr;
    1527         179 :         sql_schema *cur = cur_schema(sql);
    1528             : 
    1529         179 :         if (!mvc_schema_privs(sql, s))
    1530           0 :                 throw(SQL,"sql.drop_schema",SQLSTATE(42000) "DROP SCHEMA: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
    1531         179 :         if (cur && s->base.id == cur->base.id)
    1532           1 :                 throw(SQL,"sql.drop_schema",SQLSTATE(42000) "DROP SCHEMA: cannot drop current schema");
    1533         178 :         if (s->system)
    1534           8 :                 throw(SQL,"sql.drop_schema",SQLSTATE(42000) "DROP SCHEMA: access denied for '%s'", sname);
    1535         170 :         if (sql_schema_has_user(sql, s))
    1536           8 :                 throw(SQL,"sql.drop_schema",SQLSTATE(2BM37) "DROP SCHEMA: unable to drop schema '%s' (there are database users using it as session's default schema)", sname);
    1537         243 :         if (!action /* RESTRICT */ && (
    1538         159 :                 os_size(s->tables, tr) || os_size(s->types, tr) || os_size(s->funcs, tr) || os_size(s->seqs, tr)))
    1539           3 :                 throw(SQL,"sql.drop_schema",SQLSTATE(2BM37) "DROP SCHEMA: unable to drop schema '%s' (there are database objects which depend on it)", sname);
    1540             : 
    1541         159 :         switch (mvc_drop_schema(sql, s, action)) {
    1542           0 :                 case -1:
    1543           0 :                         throw(SQL,"sql.drop_schema",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1544           0 :                 case -2:
    1545             :                 case -3:
    1546           0 :                         throw(SQL,"sql.drop_schema",SQLSTATE(42000) "DROP SCHEMA: transaction conflict detected");
    1547             :                 default:
    1548             :                         break;
    1549             :         }
    1550             :         return MAL_SUCCEED;
    1551             : }
    1552             : 
    1553             : str
    1554       10110 : SQLcreate_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1555       10110 : {       mvc *sql = NULL;
    1556       10110 :         str msg;
    1557       10110 :         str sname = *getArgReference_str(stk, pci, 1);
    1558             :         //str tname = *getArgReference_str(stk, pci, 2);
    1559       10110 :         sql_table *t = *(sql_table **) getArgReference(stk, pci, 3);
    1560       10110 :         int temp = *getArgReference_int(stk, pci, 4), remote = (pci->argc == 7);
    1561       10110 :         int pw_encrypted = temp;
    1562             : 
    1563       10110 :         initcontext();
    1564       10102 :         if (remote)
    1565         101 :                 temp = 0;
    1566       10102 :         msg = create_table_or_view(sql, sname, t->base.name, t, temp, 0);
    1567       10102 :         if (!msg && remote) {
    1568         101 :                 str username = *getArgReference_str(stk, pci, 5);
    1569         101 :                 str password = *getArgReference_str(stk, pci, 6);
    1570             : 
    1571         101 :                 sql_schema *s = mvc_bind_schema(sql, sname);
    1572         101 :                 t = s?mvc_bind_table(sql, s, t->base.name):NULL;
    1573         101 :                 if (t)
    1574         101 :                         return remote_create(sql, t->base.id, username, password, pw_encrypted);
    1575           0 :                 throw(SQL, "sql.create_table", SQLSTATE(3F000) "Internal error");
    1576             :         }
    1577             :         return msg;
    1578             : }
    1579             : 
    1580             : str
    1581       22358 : SQLcreate_view(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1582       22358 : {       mvc *sql = NULL;
    1583       22358 :         str msg;
    1584       22358 :         str sname = *getArgReference_str(stk, pci, 1);
    1585             :         //str vname = *getArgReference_str(stk, pci, 2);
    1586       22358 :         sql_table *t = *(sql_table **) getArgReference(stk, pci, 3);
    1587       22358 :         int temp = *getArgReference_int(stk, pci, 4);
    1588       22358 :         int replace = *getArgReference_int(stk, pci, 5);
    1589             : 
    1590       22358 :         initcontext();
    1591       22357 :         msg = create_table_or_view(sql, sname, t->base.name, t, temp, replace);
    1592       22357 :         return msg;
    1593             : }
    1594             : 
    1595             : str
    1596        3679 : SQLdrop_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1597        3679 : {       mvc *sql = NULL;
    1598        3679 :         str msg;
    1599        3679 :         str sname = *getArgReference_str(stk, pci, 1);
    1600        3679 :         str name = *getArgReference_str(stk, pci, 2);
    1601        3679 :         int if_exists = *getArgReference_int(stk, pci, 3);
    1602        3679 :         int action = *getArgReference_int(stk, pci, 4);
    1603             : 
    1604        3679 :         initcontext();
    1605        3679 :         msg = drop_table(sql, sname, name, action, if_exists);
    1606        3679 :         return msg;
    1607             : }
    1608             : 
    1609             : str
    1610         314 : SQLdrop_view(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1611         314 : {       mvc *sql = NULL;
    1612         314 :         str msg;
    1613         314 :         str sname = *getArgReference_str(stk, pci, 1);
    1614         314 :         str name = *getArgReference_str(stk, pci, 2);
    1615         314 :         int if_exists = *getArgReference_int(stk, pci, 3);
    1616         314 :         int action = *getArgReference_int(stk, pci, 4);
    1617             : 
    1618         314 :         initcontext();
    1619         314 :         msg = drop_view(sql, sname, name, action, if_exists);
    1620         314 :         return msg;
    1621             : }
    1622             : 
    1623             : str
    1624         150 : SQLdrop_constraint(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1625         150 : {       mvc *sql = NULL;
    1626         150 :         str msg;
    1627         150 :         str sname = *getArgReference_str(stk, pci, 1);
    1628         150 :         str tname = *getArgReference_str(stk, pci, 2);
    1629         150 :         str kname = *getArgReference_str(stk, pci, 3);
    1630         150 :         int action = *getArgReference_int(stk, pci, 5);
    1631         150 :         (void) *getArgReference_int(stk, pci, 4); //the if_exists parameter is also passed but not used
    1632             : 
    1633         150 :         initcontext();
    1634         150 :         msg = drop_key(sql, sname, tname, kname, action);
    1635         150 :         return msg;
    1636             : }
    1637             : 
    1638             : str
    1639        1369 : SQLalter_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1640        1369 : {       mvc *sql = NULL;
    1641        1369 :         str msg;
    1642        1369 :         str sname = *getArgReference_str(stk, pci, 1);
    1643        1369 :         str tname = *getArgReference_str(stk, pci, 2);
    1644        1369 :         sql_table *t = *(sql_table **) getArgReference(stk, pci, 3);
    1645             : 
    1646        1369 :         (void)tname;
    1647        1369 :         initcontext();
    1648        1369 :         msg = alter_table(cntxt, sql, sname, t);
    1649        1369 :         return msg;
    1650             : }
    1651             : 
    1652             : str
    1653         906 : SQLcreate_type(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1654         906 : {       mvc *sql = NULL;
    1655         906 :         str msg;
    1656         906 :         str sname = *getArgReference_str(stk, pci, 1);
    1657         906 :         char *name = *getArgReference_str(stk, pci, 2);
    1658         906 :         char *impl = *getArgReference_str(stk, pci, 3);
    1659         906 :         sql_schema *s = NULL;
    1660             : 
    1661         906 :         initcontext();
    1662             : 
    1663         906 :         if (!(s = mvc_bind_schema(sql, sname)))
    1664           0 :                 throw(SQL,"sql.create_type",SQLSTATE(3F000) "CREATE TYPE: no such schema '%s'", sname);
    1665         906 :         if (!mvc_schema_privs(sql, s))
    1666           0 :                 throw(SQL,"sql.create_type", SQLSTATE(42000) "CREATE TYPE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
    1667         906 :         if (schema_bind_type(sql, s, name))
    1668           0 :                 throw(SQL,"sql.create_type", SQLSTATE(42S02) "CREATE TYPE: type '%s' already exists", name);
    1669         906 :         switch (mvc_create_type(sql, s, name, 0, 0, 0, impl)) {
    1670           0 :                 case -1:
    1671           0 :                         throw(SQL,"sql.create_type", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1672           1 :                 case -2:
    1673             :                 case -3:
    1674           1 :                         throw(SQL,"sql.create_type", SQLSTATE(42000) "CREATE TYPE: transaction conflict detected");
    1675           0 :                 case -4:
    1676           0 :                         throw(SQL,"sql.create_type", SQLSTATE(0D000) "CREATE TYPE: unknown external type '%s'", impl);
    1677             :                 default:
    1678             :                         break;
    1679             :         }
    1680             :         return msg;
    1681             : }
    1682             : 
    1683             : str
    1684           4 : SQLdrop_type(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1685           4 : {       mvc *sql = NULL;
    1686           4 :         str msg;
    1687           4 :         str sname = *getArgReference_str(stk, pci, 1);
    1688           4 :         char *name = *getArgReference_str(stk, pci, 2);
    1689           4 :         int drop_action = *getArgReference_int(stk, pci, 3);
    1690           4 :         sql_schema *s = NULL;
    1691           4 :         sql_type *t;
    1692             : 
    1693           4 :         initcontext();
    1694             : 
    1695           4 :         if (!(s = mvc_bind_schema(sql, sname)))
    1696           0 :                 throw(SQL,"sql.drop_type",SQLSTATE(3F000) "DROP TYPE: no such schema '%s'", sname);
    1697           4 :         if (!mvc_schema_privs(sql, s))
    1698           0 :                 throw(SQL,"sql.drop_type", SQLSTATE(42000) "DROP TYPE:  access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), s->base.name);
    1699           4 :         if (!(t = schema_bind_type(sql, s, name)))
    1700           0 :                 throw(SQL,"sql.drop_type", SQLSTATE(3F000) "DROP TYPE: type '%s' does not exist", name);
    1701           4 :         if (!drop_action && mvc_check_dependency(sql, t->base.id, TYPE_DEPENDENCY, NULL))
    1702           1 :                 throw(SQL,"sql.drop_type", SQLSTATE(42000) "DROP TYPE: unable to drop type %s (there are database objects which depend on it)\n", name);
    1703           3 :         switch (mvc_drop_type(sql, s, t, drop_action)) {
    1704           0 :                 case -1:
    1705           0 :                         throw(SQL,"sql.drop_type",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1706           0 :                 case -2:
    1707             :                 case -3:
    1708           0 :                         throw(SQL,"sql.drop_type",SQLSTATE(42000) "DROP TYPE: transaction conflict detected");
    1709             :                 default:
    1710             :                         break;
    1711             :         }
    1712             :         return msg;
    1713             : }
    1714             : 
    1715             : str
    1716          40 : SQLgrant_roles(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1717          40 : {       mvc *sql = NULL;
    1718          40 :         str msg;
    1719          40 :         str sname = *getArgReference_str(stk, pci, 1);
    1720          40 :         char *auth = SaveArgReference(stk, pci, 2);
    1721          40 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 3);
    1722          40 :         int admin = *getArgReference_int(stk, pci, 4);
    1723             : 
    1724          40 :         initcontext();
    1725          40 :         msg = sql_grant_role(sql, sname /*grantee */ , auth, grantor, admin);
    1726          40 :         return msg;
    1727             : }
    1728             : 
    1729             : str
    1730          10 : SQLrevoke_roles(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1731          10 : {       mvc *sql = NULL;
    1732          10 :         str msg;
    1733          10 :         str sname = *getArgReference_str(stk, pci, 1);
    1734          10 :         char *auth = SaveArgReference(stk, pci, 2);
    1735          10 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 3);
    1736          10 :         int admin = *getArgReference_int(stk, pci, 4);
    1737             : 
    1738          10 :         initcontext();
    1739          10 :         msg = sql_revoke_role(sql, sname /*grantee */ , auth, grantor, admin);
    1740          10 :         return msg;
    1741             : }
    1742             : 
    1743             : str
    1744       18454 : SQLgrant(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1745       18454 : {       mvc *sql = NULL;
    1746       18454 :         str msg;
    1747       18454 :         str sname = *getArgReference_str(stk, pci, 1);
    1748       18454 :         char *tname = *getArgReference_str(stk, pci, 2);
    1749       18454 :         char *grantee = *getArgReference_str(stk, pci, 3);
    1750       18454 :         int privs = *getArgReference_int(stk, pci, 4);
    1751       18454 :         char *cname = SaveArgReference(stk, pci, 5);
    1752       18454 :         int grant = *getArgReference_int(stk, pci, 6);
    1753       18454 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 7);
    1754             : 
    1755       18454 :         initcontext();
    1756       18454 :         if (strNil(tname))
    1757          10 :                 msg = sql_grant_global_privs(sql, grantee, privs, grant, grantor);
    1758             :         else
    1759       18444 :                 msg = sql_grant_table_privs(sql, grantee, privs, sname, tname, cname, grant, grantor);
    1760             :         return msg;
    1761             : }
    1762             : 
    1763          15 : str SQLrevoke(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1764          15 : {       mvc *sql = NULL;
    1765          15 :         str msg;
    1766          15 :         str sname = *getArgReference_str(stk, pci, 1);
    1767          15 :         char *tname = *getArgReference_str(stk, pci, 2);
    1768          15 :         char *grantee = *getArgReference_str(stk, pci, 3);
    1769          15 :         int privs = *getArgReference_int(stk, pci, 4);
    1770          15 :         char *cname = SaveArgReference(stk, pci, 5);
    1771          15 :         int grant = *getArgReference_int(stk, pci, 6);
    1772          15 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 7);
    1773             : 
    1774          15 :         initcontext();
    1775          15 :         if (strNil(tname))
    1776           2 :                 msg = sql_revoke_global_privs(sql, grantee, privs, grant, grantor);
    1777             :         else
    1778          13 :                 msg = sql_revoke_table_privs(sql, grantee, privs, sname, tname, cname, grant, grantor);
    1779             :         return msg;
    1780             : }
    1781             : 
    1782             : str
    1783       99018 : SQLgrant_function(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1784       99018 : {       mvc *sql = NULL;
    1785       99018 :         str msg;
    1786       99018 :         str sname = *getArgReference_str(stk, pci, 1);
    1787       99018 :         sqlid func_id = (sqlid) *getArgReference_int(stk, pci, 2);
    1788       99018 :         char *grantee = *getArgReference_str(stk, pci, 3);
    1789       99018 :         int privs = *getArgReference_int(stk, pci, 4);
    1790       99018 :         int grant = *getArgReference_int(stk, pci, 5);
    1791       99018 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 6);
    1792             : 
    1793       99018 :         initcontext();
    1794       99018 :         msg = sql_grant_func_privs(sql, grantee, privs, sname, func_id, grant, grantor);
    1795       99018 :         return msg;
    1796             : }
    1797             : 
    1798             : str
    1799           1 : SQLrevoke_function(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1800           1 : {       mvc *sql = NULL;
    1801           1 :         str msg;
    1802           1 :         str sname = *getArgReference_str(stk, pci, 1);
    1803           1 :         sqlid func_id = (sqlid) *getArgReference_int(stk, pci, 2);
    1804           1 :         char *grantee = *getArgReference_str(stk, pci, 3);
    1805           1 :         int privs = *getArgReference_int(stk, pci, 4);
    1806           1 :         int grant = *getArgReference_int(stk, pci, 5);
    1807           1 :         sqlid grantor = (sqlid) *getArgReference_int(stk, pci, 6);
    1808             : 
    1809           1 :         initcontext();
    1810           1 :         msg = sql_revoke_func_privs(sql, grantee, privs, sname, func_id, grant, grantor);
    1811           1 :         return msg;
    1812             : }
    1813             : 
    1814             : str
    1815         358 : SQLcreate_user(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1816         358 : {       mvc *sql = NULL;
    1817         358 :         str msg;
    1818         358 :         str sname = *getArgReference_str(stk, pci, 1);
    1819         358 :         char *passwd = *getArgReference_str(stk, pci, 2);
    1820         358 :         int enc = *getArgReference_int(stk, pci, 3);
    1821         358 :         char *schema = SaveArgReference(stk, pci, 4);
    1822         358 :         char *schema_path = SaveArgReference(stk, pci, 5);
    1823         358 :         char *fullname = SaveArgReference(stk, pci, 6);
    1824         358 :         lng max_memory = *getArgReference_lng(stk, pci, 7);
    1825         358 :         int max_workers = *getArgReference_int(stk, pci, 8);
    1826         358 :         char *optimizer = SaveArgReference(stk, pci, 9);
    1827         358 :         char *default_role = SaveArgReference(stk, pci, 10);
    1828             : 
    1829         358 :         initcontext();
    1830         358 :         msg = sql_create_user(sql, sname, passwd, enc, fullname, schema, schema_path, max_memory, max_workers, optimizer, default_role);
    1831         358 :         return msg;
    1832             : }
    1833             : 
    1834             : str
    1835         107 : SQLdrop_user(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1836         107 : {       mvc *sql = NULL;
    1837         107 :         str msg;
    1838         107 :         str sname = *getArgReference_str(stk, pci, 1);
    1839             : 
    1840         107 :         initcontext();
    1841         107 :          msg = sql_drop_user(sql, sname);
    1842         107 :         return msg;
    1843             : }
    1844             : 
    1845             : str
    1846          83 : SQLalter_user(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1847          83 : {       mvc *sql = NULL;
    1848          83 :         str msg;
    1849          83 :         str sname = *getArgReference_str(stk, pci, 1);
    1850          83 :         char *passwd = SaveArgReference(stk, pci, 2);
    1851          83 :         int enc = *getArgReference_int(stk, pci, 3);
    1852          83 :         char *schema = SaveArgReference(stk, pci, 4);
    1853          83 :         char *schema_path = SaveArgReference(stk, pci, 5);
    1854          83 :         char *oldpasswd = SaveArgReference(stk, pci, 6);
    1855          83 :         char *role = SaveArgReference(stk, pci, 7);
    1856          83 :         lng max_memory = *getArgReference_lng(stk, pci, 8);
    1857          83 :         int max_workers = *getArgReference_int(stk, pci, 9);
    1858             : 
    1859          83 :         initcontext();
    1860          83 :         msg = sql_alter_user(sql, sname, passwd, enc, schema, schema_path, oldpasswd, role, max_memory, max_workers);
    1861             : 
    1862          83 :         return msg;
    1863             : }
    1864             : 
    1865             : str
    1866           5 : SQLrename_user(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1867           5 : {       mvc *sql = NULL;
    1868           5 :         str msg;
    1869           5 :         str sname = *getArgReference_str(stk, pci, 1);
    1870           5 :         char *newuser = *getArgReference_str(stk, pci, 2);
    1871             : 
    1872           5 :         initcontext();
    1873           5 :         msg = sql_rename_user(sql, sname, newuser);
    1874           5 :         return msg;
    1875             : }
    1876             : 
    1877             : str
    1878          26 : SQLcreate_role(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1879          26 : {       mvc *sql = NULL;
    1880          26 :         str msg;
    1881          26 :         str sname = *getArgReference_str(stk, pci, 1);
    1882          26 :         char *role = sname;
    1883          26 :         sqlid grantor = (sqlid)*getArgReference_int(stk, pci, 3);
    1884             : 
    1885          26 :         initcontext();
    1886          26 :         msg = sql_create_role(sql, role, grantor);
    1887          26 :         return msg;
    1888             : }
    1889             : 
    1890             : str
    1891          19 : SQLdrop_role(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1892          19 : {       mvc *sql = NULL;
    1893          19 :         str msg;
    1894          19 :         str sname = *getArgReference_str(stk, pci, 1);
    1895          19 :         char *role = sname;
    1896             : 
    1897          19 :         initcontext();
    1898          19 :         msg = sql_drop_role(sql, role);
    1899          19 :         return msg;
    1900             : }
    1901             : 
    1902             : str
    1903         160 : SQLdrop_index(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1904         160 : {       mvc *sql = NULL;
    1905         160 :         str msg;
    1906         160 :         str sname = *getArgReference_str(stk, pci, 1);
    1907         160 :         char *iname = *getArgReference_str(stk, pci, 2);
    1908             : 
    1909         160 :         initcontext();
    1910         160 :         msg = drop_index(sql, sname, iname);
    1911         160 :         return msg;
    1912             : }
    1913             : 
    1914             : str
    1915         669 : SQLdrop_function(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1916         669 : {       mvc *sql = NULL;
    1917         669 :         str msg;
    1918         669 :         str sname = *getArgReference_str(stk, pci, 1);
    1919         669 :         char *fname = *getArgReference_str(stk, pci, 2);
    1920         669 :         sqlid fid = (sqlid)*getArgReference_int(stk, pci, 3);
    1921         669 :         sql_ftype type = (sql_ftype) *getArgReference_int(stk, pci, 4);
    1922         669 :         int action = *getArgReference_int(stk, pci, 5);
    1923             : 
    1924         669 :         initcontext();
    1925         669 :         msg = drop_func(sql, sname, fname, fid, type, action);
    1926         669 :         return msg;
    1927             : }
    1928             : 
    1929             : str
    1930      120296 : SQLcreate_function(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1931      120296 : {       mvc *sql = NULL;
    1932      120296 :         str msg;
    1933      120296 :         str sname = *getArgReference_str(stk, pci, 1);
    1934      120296 :         str fname = *getArgReference_str(stk, pci, 2);
    1935      120296 :         sql_func *f = *(sql_func **) getArgReference(stk, pci, 3);
    1936      120296 :         int replace = *getArgReference_int(stk, pci, 4);
    1937             : 
    1938      120296 :         initcontext();
    1939      120296 :         msg = create_func(sql, sname, fname, f, replace);
    1940      120296 :         return msg;
    1941             : }
    1942             : 
    1943             : str
    1944         345 : SQLcreate_trigger(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1945         345 : {       mvc *sql = NULL;
    1946         345 :         str msg;
    1947         345 :         str sname = *getArgReference_str(stk, pci, 1);
    1948         345 :         char *tname = *getArgReference_str(stk, pci, 2);
    1949         345 :         char *triggername = *getArgReference_str(stk, pci, 3);
    1950         345 :         int time = *getArgReference_int(stk, pci, 4);
    1951         345 :         int orientation = *getArgReference_int(stk, pci, 5);
    1952         345 :         int event = *getArgReference_int(stk, pci, 6);
    1953         345 :         char *old_name = *getArgReference_str(stk, pci, 7);
    1954         345 :         char *new_name = *getArgReference_str(stk, pci, 8);
    1955         345 :         char *condition = *getArgReference_str(stk, pci, 9);
    1956         345 :         char *query = *getArgReference_str(stk, pci, 10);
    1957         345 :         int replace = *getArgReference_int(stk, pci, 11);
    1958             : 
    1959         345 :         initcontext();
    1960         374 :         old_name=(strNil(old_name))?NULL:old_name;
    1961         385 :         new_name=(strNil(new_name))?NULL:new_name;
    1962         345 :         condition=(strNil(condition))?NULL:condition;
    1963         345 :         msg = create_trigger(sql, sname, tname, triggername, time, orientation, event, old_name, new_name, condition, query, replace);
    1964         345 :         return msg;
    1965             : }
    1966             : 
    1967             : str
    1968          84 : SQLdrop_trigger(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1969          84 : {       mvc *sql = NULL;
    1970          84 :         str msg;
    1971          84 :         str sname = *getArgReference_str(stk, pci, 1);
    1972          84 :         char *triggername = *getArgReference_str(stk, pci, 2);
    1973          84 :         int if_exists = *getArgReference_int(stk, pci, 3);
    1974             : 
    1975          84 :         initcontext();
    1976          84 :         msg = drop_trigger(sql, sname, triggername, if_exists);
    1977          84 :         return msg;
    1978             : }
    1979             : 
    1980             : str
    1981         312 : SQLalter_add_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1982         312 : {       mvc *sql = NULL;
    1983         312 :         str msg;
    1984         312 :         str sname = *getArgReference_str(stk, pci, 1);
    1985         312 :         char *mtname = SaveArgReference(stk, pci, 2);
    1986         312 :         char *psname = SaveArgReference(stk, pci, 3);
    1987         312 :         char *ptname = SaveArgReference(stk, pci, 4);
    1988             : 
    1989         312 :         initcontext();
    1990         312 :         msg = alter_table_add_table(sql, sname, mtname, psname, ptname);
    1991         312 :         return msg;
    1992             : }
    1993             : 
    1994             : str
    1995         224 : SQLalter_add_range_partition(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    1996         224 : {       mvc *sql = NULL;
    1997         224 :         str msg;
    1998         224 :         str sname = *getArgReference_str(stk, pci, 1);
    1999         224 :         char *mtname = SaveArgReference(stk, pci, 2);
    2000         224 :         char *psname = SaveArgReference(stk, pci, 3);
    2001         224 :         char *ptname = SaveArgReference(stk, pci, 4);
    2002         224 :         ValRecord *min = &(stk)->stk[(pci)->argv[5]];
    2003         224 :         ValRecord *max = &(stk)->stk[(pci)->argv[6]];
    2004         224 :         bit with_nills = *getArgReference_bit(stk, pci, 7);
    2005         224 :         int update = *getArgReference_int(stk, pci, 8);
    2006         224 :         lng cnt = 0;
    2007             : 
    2008         224 :         if (getArgType(mb, pci, 9) == TYPE_lng) {
    2009         222 :                 cnt = *getArgReference_lng(stk, pci, 9);
    2010             :         } else {
    2011           2 :                 BAT *c = BATdescriptor(*getArgReference_bat(stk, pci, 9));
    2012           2 :                 if (c && BATcount(c) == 1)
    2013           2 :                         cnt = *(lng*)Tloc(c, 0);
    2014           2 :                 if (c)
    2015           2 :                         BBPunfix(c->batCacheid);
    2016             :         }
    2017             : 
    2018         224 :         initcontext();
    2019         224 :         msg = alter_table_add_range_partition(sql, sname, mtname, psname, ptname, VALget(min), VALget(max), with_nills, update, cnt);
    2020         224 :         return msg;
    2021             : }
    2022             : 
    2023             : str
    2024          59 : SQLalter_add_value_partition(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2025          59 : {       mvc *sql = NULL;
    2026          59 :         str msg;
    2027          59 :         str sname = *getArgReference_str(stk, pci, 1);
    2028          59 :         char *mtname = SaveArgReference(stk, pci, 2);
    2029          59 :         char *psname = SaveArgReference(stk, pci, 3);
    2030          59 :         char *ptname = SaveArgReference(stk, pci, 4);
    2031          59 :         bit with_nills = *getArgReference_bit(stk, pci, 5);
    2032          59 :         int update = *getArgReference_int(stk, pci, 6);
    2033          59 :         lng cnt = 0;
    2034             : 
    2035          59 :         if (getArgType(mb, pci, 7) == TYPE_lng) {
    2036          59 :                 cnt = *getArgReference_lng(stk, pci, 7);
    2037             :         } else {
    2038           0 :                 BAT *c = BATdescriptor(*getArgReference_bat(stk, pci, 7));
    2039           0 :                 if (c && BATcount(c) == 1)
    2040           0 :                         cnt = *(lng*)Tloc(c, 0);
    2041           0 :                 if (c)
    2042           0 :                         BBPunfix(c->batCacheid);
    2043             :         }
    2044             : 
    2045          59 :         initcontext();
    2046          59 :         msg = alter_table_add_value_partition(sql, stk, pci, sname, mtname, psname, ptname, with_nills, update, cnt);
    2047          59 :         return msg;
    2048             : }
    2049             : 
    2050             : str
    2051         180 : SQLalter_del_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2052         180 : {       mvc *sql = NULL;
    2053         180 :         str msg;
    2054         180 :         str sname = *getArgReference_str(stk, pci, 1);
    2055         180 :         char *mtname = SaveArgReference(stk, pci, 2);
    2056         180 :         char *psname = SaveArgReference(stk, pci, 3);
    2057         180 :         char *ptname = SaveArgReference(stk, pci, 4);
    2058         180 :         int drop_action = *getArgReference_int(stk, pci, 5);
    2059             : 
    2060         180 :         initcontext();
    2061         180 :         msg= alter_table_del_table(sql, sname, mtname, psname, ptname, drop_action);
    2062         180 :         return msg;
    2063             : }
    2064             : 
    2065             : str
    2066        2310 : SQLalter_set_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2067        2310 : {       mvc *sql = NULL;
    2068        2310 :         str msg;
    2069        2310 :         str sname = *getArgReference_str(stk, pci, 1);
    2070        2310 :         char *tname = SaveArgReference(stk, pci, 2);
    2071        2310 :         int access = *getArgReference_int(stk, pci, 3);
    2072             : 
    2073        2310 :         initcontext();
    2074        2310 :         msg = alter_table_set_access(sql, sname, tname, access);
    2075             : 
    2076        2310 :         return msg;
    2077             : }
    2078             : 
    2079             : str
    2080         354 : SQLcomment_on(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2081             : {
    2082         354 :         mvc *sql = NULL;
    2083         354 :         str msg;
    2084         354 :         sqlid objid = (sqlid) *getArgReference_int(stk, pci, 1);
    2085         354 :         char *remark = *getArgReference_str(stk, pci, 2);
    2086         354 :         sql_trans *tx;
    2087         354 :         sql_schema *sys;
    2088         354 :         sql_table *comments;
    2089         354 :         sql_column *id_col, *remark_col;
    2090         354 :         oid rid;
    2091         354 :         int ok = LOG_OK;
    2092             : 
    2093         354 :         initcontext();
    2094             : 
    2095             :         // Manually insert the rows to circumvent permission checks.
    2096         354 :         tx = sql->session->tr;
    2097         354 :         sys = mvc_bind_schema(sql, "sys");
    2098         354 :         if (!sys)
    2099           0 :                 throw(SQL, "sql.comment_on", SQLSTATE(3F000) "Internal error");
    2100         354 :         comments = mvc_bind_table(sql, sys, "comments");
    2101         354 :         if (!comments)
    2102           0 :                 throw(SQL, "sql.comment_on", SQLSTATE(3F000) "no table sys.comments");
    2103         354 :         id_col = mvc_bind_column(sql, comments, "id");
    2104         354 :         remark_col = find_sql_column(comments, "remark");
    2105         354 :         if (!id_col || !remark_col)
    2106           0 :                 throw(SQL, "sql.comment_on", SQLSTATE(3F000) "no table sys.comments");
    2107         354 :         sqlstore *store = tx->store;
    2108         354 :         rid = store->table_api.column_find_row(tx, id_col, &objid, NULL);
    2109         708 :         if (!strNil(remark) && *remark) {
    2110         345 :                 if (!is_oid_nil(rid)) {
    2111             :                         // have new remark and found old one, so update field
    2112             :                         /* UPDATE sys.comments SET remark = %s WHERE id = %d */
    2113           4 :                         ok = store->table_api.column_update_value(tx, remark_col, rid, remark);
    2114             :                 } else {
    2115             :                         // have new remark but found none so insert row
    2116             :                         /* INSERT INTO sys.comments (id, remark) VALUES (%d, %s) */
    2117         341 :                         ok = store->table_api.table_insert(tx, comments, &objid, &remark);
    2118             :                 }
    2119         345 :                 if (ok != LOG_OK)
    2120           1 :                         throw(SQL, "sql.comment_on", SQLSTATE(42000) "Comment on failed%s", ok == LOG_CONFLICT ? " due to conflict with another transaction" : "");
    2121         344 :                 if ((ok = sql_trans_add_dependency(tx, objid, ddl)) != LOG_OK) /* At the moment this adds dependencies for old objects :( */
    2122           0 :                         throw(SQL, "sql.comment_on", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2123             :         } else {
    2124           9 :                 if (!is_oid_nil(rid)) {
    2125             :                         // have no remark but found one, so delete row
    2126             :                         /* DELETE FROM sys.comments WHERE id = %d */
    2127           7 :                         if ((ok = store->table_api.table_delete(tx, comments, rid)) != LOG_OK)
    2128           0 :                                 throw(SQL, "sql.comment_on", SQLSTATE(42000) "Comment on failed%s", ok == LOG_CONFLICT ? " due to conflict with another transaction" : "");
    2129             :                 }
    2130             :         }
    2131             :         return MAL_SUCCEED;
    2132             : }
    2133             : 
    2134             : str
    2135           8 : SQLrename_schema(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2136             : {
    2137           8 :         mvc *sql = NULL;
    2138           8 :         str msg = MAL_SUCCEED;
    2139           8 :         str old_name = *getArgReference_str(stk, pci, 1);
    2140           8 :         str new_name = *getArgReference_str(stk, pci, 2);
    2141           8 :         sql_schema *s;
    2142             : 
    2143           8 :         initcontext();
    2144           8 :         sql_schema *cur = cur_schema(sql);
    2145             : 
    2146           8 :         if (!(s = mvc_bind_schema(sql, old_name)))
    2147           0 :                 throw(SQL, "sql.rename_schema", SQLSTATE(42S02)
    2148             :                           "ALTER SCHEMA: no such schema '%s'", old_name);
    2149             : 
    2150           8 :         if (!mvc_schema_privs(sql, s))
    2151           0 :                 throw(SQL, "sql.rename_schema", SQLSTATE(42000)
    2152             :                           "ALTER SCHEMA: access denied for %s to schema '%s'",
    2153             :                           get_string_global_var(sql, "current_user"), old_name);
    2154             : 
    2155           8 :         if (s->system)
    2156           0 :                 throw(SQL, "sql.rename_schema", SQLSTATE(3F000)
    2157             :                           "ALTER SCHEMA: cannot rename a system schema");
    2158             : 
    2159          16 :         if (strNil(new_name) || *new_name == '\0')
    2160           0 :                 throw(SQL, "sql.rename_schema", SQLSTATE(3F000)
    2161             :                           "ALTER SCHEMA: invalid new schema name");
    2162             : 
    2163           8 :         if (mvc_bind_schema(sql, new_name))
    2164           0 :                 throw(SQL, "sql.rename_schema", SQLSTATE(3F000)
    2165             :                           "ALTER SCHEMA: there is a schema named '%s' in the database", new_name);
    2166             : 
    2167           8 :         if (mvc_check_dependency(sql, s->base.id, SCHEMA_DEPENDENCY, NULL) == HAS_DEPENDENCY) {
    2168           0 :                 throw(SQL, "sql.rename_schema", "ALTER SCHEMA: unable to"
    2169             :                           " rename schema '%s', there are database objects"
    2170             :                           " which depend on it", old_name);
    2171             :         }
    2172             : 
    2173           8 :         switch (sql_trans_rename_schema(sql->session->tr, s->base.id, new_name)) {
    2174           0 :                 case -1:
    2175           0 :                         throw(SQL,"sql.rename_schema", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2176           0 :                 case -2:
    2177             :                 case -3:
    2178           0 :                         throw(SQL,"sql.rename_schema", SQLSTATE(42000)
    2179             :                                   "ALTER SCHEMA: transaction conflict detected");
    2180             :                 default:
    2181           8 :                         break;
    2182             :         }
    2183             : 
    2184           8 :         if (cur && s->base.id == cur->base.id) {
    2185           1 :                 if (!mvc_set_schema(sql, new_name))
    2186           0 :                         throw(SQL, "sql.rename_schema",SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2187             : 
    2188           1 :                 s = mvc_bind_schema(sql, "sys");
    2189           1 :                 assert(s);
    2190             : 
    2191           1 :                 if (!sqlvar_set_string(find_global_var(sql, s, "current_schema"), new_name))
    2192           0 :                         throw(SQL, "sql.setVariable", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2193             :         }
    2194             : 
    2195             :         return msg;
    2196             : }
    2197             : 
    2198             : str
    2199          45 : SQLrename_table(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2200             : {
    2201          45 :         mvc *sql = NULL;
    2202          45 :         str msg = MAL_SUCCEED;
    2203          45 :         str oschema_name = *getArgReference_str(stk, pci, 1);
    2204          45 :         str nschema_name = *getArgReference_str(stk, pci, 2);
    2205          45 :         str otable_name = *getArgReference_str(stk, pci, 3);
    2206          45 :         str ntable_name = *getArgReference_str(stk, pci, 4);
    2207          45 :         sql_schema *o, *s;
    2208          45 :         sql_table *t;
    2209             : 
    2210          45 :         initcontext();
    2211             : 
    2212          45 :         if (strcmp(oschema_name, nschema_name) == 0) { //renaming the table itself
    2213          19 :                 if (!(s = mvc_bind_schema(sql, oschema_name)))
    2214           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: no such schema '%s'", oschema_name);
    2215          19 :                 if (!mvc_schema_privs(sql, s))
    2216           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), oschema_name);
    2217          19 :                 if (!(t = mvc_bind_table(sql, s, otable_name)))
    2218           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", otable_name, oschema_name);
    2219          19 :                 if (t->system)
    2220           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: cannot rename a system table");
    2221          19 :                 if (isView(t))
    2222           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: cannot rename a view");
    2223          19 :                 if (isDeclaredTable(t))
    2224           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: cannot rename a declared table");
    2225          19 :                 if (mvc_check_dependency(sql, t->base.id, TABLE_DEPENDENCY, NULL))
    2226           0 :                         throw (SQL,"sql.rename_table", SQLSTATE(2BM37) "ALTER TABLE: unable to rename table '%s' (there are database objects which depend on it)", otable_name);
    2227          38 :                 if (strNil(ntable_name) || *ntable_name == '\0')
    2228           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(3F000) "ALTER TABLE: invalid new table name");
    2229          19 :                 if (mvc_bind_table(sql, s, ntable_name))
    2230           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(3F000) "ALTER TABLE: there is a table named '%s' in schema '%s'", ntable_name, oschema_name);
    2231             : 
    2232          19 :                 switch (sql_trans_rename_table(sql->session->tr, s, t->base.id, ntable_name)) {
    2233           0 :                         case -1:
    2234           0 :                                 throw(SQL,"sql.rename_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2235           3 :                         case -2:
    2236             :                         case -3:
    2237           3 :                                 throw(SQL,"sql.rename_table", SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
    2238             :                         default:
    2239             :                                 break;
    2240             :                 }
    2241             :         } else { //changing the schema of the table
    2242          26 :                 assert(strcmp(otable_name, ntable_name) == 0);
    2243             : 
    2244          26 :                 if (!(o = mvc_bind_schema(sql, oschema_name)))
    2245           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: no such schema '%s'", oschema_name);
    2246          26 :                 if (!mvc_schema_privs(sql, o))
    2247           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), oschema_name);
    2248          26 :                 if (!(t = mvc_bind_table(sql, o, otable_name)))
    2249           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", otable_name, oschema_name);
    2250          26 :                 if (t->system)
    2251           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: cannot set schema of a system table");
    2252          26 :                 if (isTempSchema(o))
    2253           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: not possible to change a temporary table schema");
    2254          26 :                 if (isView(t))
    2255           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: not possible to change schema of a view");
    2256          26 :                 if (isDeclaredTable(t))
    2257           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: not possible to change schema of a declared table");
    2258          26 :                 if (mvc_check_dependency(sql, t->base.id, TABLE_DEPENDENCY, NULL) || list_length(t->members) || ol_length(t->triggers))
    2259           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(2BM37) "ALTER TABLE: unable to set schema of table '%s' (there are database objects which depend on it)", otable_name);
    2260          26 :                 if (!(s = mvc_bind_schema(sql, nschema_name)))
    2261           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: no such schema '%s'", nschema_name);
    2262          26 :                 if (!mvc_schema_privs(sql, s))
    2263           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42000) "ALTER TABLE: access denied for '%s' to schema '%s'", get_string_global_var(sql, "current_user"), nschema_name);
    2264          26 :                 if (isTempSchema(s))
    2265           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(3F000) "ALTER TABLE: not possible to change table's schema to temporary");
    2266          26 :                 if (mvc_bind_table(sql, s, otable_name))
    2267           0 :                         throw(SQL, "sql.rename_table", SQLSTATE(42S02) "ALTER TABLE: table '%s' on schema '%s' already exists", otable_name, nschema_name);
    2268             : 
    2269          26 :                 switch (sql_trans_set_table_schema(sql->session->tr, t->base.id, o, s)) {
    2270           0 :                         case -1:
    2271           0 :                                 throw(SQL,"sql.rename_table", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2272           1 :                         case -2:
    2273             :                         case -3:
    2274           1 :                                 throw(SQL,"sql.rename_table", SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
    2275             :                         default:
    2276             :                                 break;
    2277             :                 }
    2278             :         }
    2279             : 
    2280             :         return msg;
    2281             : }
    2282             : 
    2283             : str
    2284          13 : SQLrename_column(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
    2285             : {
    2286          13 :         mvc *sql = NULL;
    2287          13 :         str msg = MAL_SUCCEED;
    2288          13 :         str schema_name = *getArgReference_str(stk, pci, 1);
    2289          13 :         str table_name = *getArgReference_str(stk, pci, 2);
    2290          13 :         str old_name = *getArgReference_str(stk, pci, 3);
    2291          13 :         str new_name = *getArgReference_str(stk, pci, 4);
    2292          13 :         sql_schema *s;
    2293          13 :         sql_table *t;
    2294          13 :         sql_column *col;
    2295             : 
    2296          13 :         initcontext();
    2297          13 :         if (!(s = mvc_bind_schema(sql, schema_name)))
    2298           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42S02) "ALTER TABLE: no such schema '%s'", schema_name);
    2299          13 :         if (!mvc_schema_privs(sql, s))
    2300           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42000) "ALTER TABLE: access denied for %s to schema '%s'", get_string_global_var(sql, "current_user"), schema_name);
    2301          13 :         if (!(t = mvc_bind_table(sql, s, table_name)))
    2302           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42S02) "ALTER TABLE: no such table '%s' in schema '%s'", table_name, schema_name);
    2303          13 :         if (t->system)
    2304           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42000) "ALTER TABLE: cannot rename a column in a system table");
    2305          13 :         if (isView(t))
    2306           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42000) "ALTER TABLE: cannot rename column '%s': '%s' is a view", old_name, table_name);
    2307          13 :         if (isDeclaredTable(t))
    2308           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42000) "ALTER TABLE: cannot rename column in a declared table");
    2309          13 :         if (!(col = mvc_bind_column(sql, t, old_name)))
    2310           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(42S22) "ALTER TABLE: no such column '%s' in table '%s'", old_name, table_name);
    2311          13 :         if (mvc_check_dependency(sql, col->base.id, COLUMN_DEPENDENCY, NULL))
    2312           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(2BM37) "ALTER TABLE: cannot rename column '%s' (there are database objects which depend on it)", old_name);
    2313          26 :         if (strNil(new_name) || *new_name == '\0')
    2314           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(3F000) "ALTER TABLE: invalid new column name");
    2315          13 :         if (mvc_bind_column(sql, t, new_name))
    2316           0 :                 throw(SQL, "sql.rename_column", SQLSTATE(3F000) "ALTER TABLE: there is a column named '%s' in table '%s'", new_name, table_name);
    2317             : 
    2318          13 :         switch (sql_trans_rename_column(sql->session->tr, t, col->base.id, old_name, new_name)) {
    2319           0 :                 case -1:
    2320           0 :                         throw(SQL,"sql.rename_column", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    2321           0 :                 case -2:
    2322             :                 case -3:
    2323           0 :                         throw(SQL,"sql.rename_column", SQLSTATE(42000) "ALTER TABLE: transaction conflict detected");
    2324             :                 default:
    2325             :                         break;
    2326             :         }
    2327             :         return msg;
    2328             : }

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