[MonetDB-users] batcalc.ifThenElse:requires bats of identical size
Hi! I am running into this error: batcalc.ifThenElse:requires bats of identical size My server (running on Windows XP 64): # MonetDB server v5.6.0, based on kernel v1.24.0 # Serving database 'demo' # Compiled for i686-pc-win32/64bit with 32bit OIDs dynamically linked The following recreates the problem: CREATE TABLE test1 (col1 INTEGER); INSERT INTO test1 VALUES (null); INSERT INTO test1 VALUES (null); SELECT CASE WHEN col1=1 THEN 'ONE' END AS "pc1" FROM test1 GROUP BY "pc1"; Any ideas? Obviously the above isn't too interesting, but it a simplified test case from a more complex query on a much larger dataset. Seems to be related to GROUP BY on a CASE... Thanks! Rick +----------------------------------------------------------------------- ------+ | mal | +======================================================================= ======+ | function user.s0_3():void; | | _1:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",0); | | _6:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",1); | | _8{rows=2:lng} := algebra.kunion(_1,_6); | | _1:bat[:oid,:int]{rows=1:lng} := nil; | | _6:bat[:oid,:int]{rows=1:lng} := nil; | | _9:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",2); | | _11{rows=2:lng} := algebra.kdifference(_8,_9); | | _8{rows=2:lng} := nil; | | _12{rows=3:lng} := algebra.kunion(_11,_9); | | _11{rows=2:lng} := nil; | | _9:bat[:oid,:int]{rows=1:lng} := nil; | | _13:bat[:oid,:oid]{rows=1:lng} := sql.bind_dbat("voc","test2",1); | | _14{rows=1:lng} := bat.reverse(_13); | | _13:bat[:oid,:oid]{rows=1:lng} := nil; | | _15{rows=3:lng} := algebra.kdifference(_12,_14); | | _14{rows=1:lng} := nil; | | _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := algebra.markT(_15,0@0); | | _15{rows=3:lng} := nil; | | _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := bat.reverse(_17); | | _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := nil; | | _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.join(_18,_12); | | _12{rows=3:lng} := nil; | | _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := | : batcalc.==(_19,1); | | _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); | | _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := | : batcalc.ifthenelse(_20,"ONE",_23); | | _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | (ext36,grp34):= group.new(_24); | | _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | _27 := bat.mirror(ext36); | | ext36 := nil; | | _28 := algebra.join(_27,_19); | | _27 := nil; | | _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | _29:bat[:oid,:bit] := batcalc.==(_28,1); | | _28 := nil; | | _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); | | _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | _31:bat[:oid,:str] := batcalc.ifthenelse(_29,"ONE",_30); | | _29:bat[:oid,:bit] := nil; | | _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; | | _32 := sql.resultSet(1,1,_31); | | sql.rsColumn(_32,"voc.","pc1","char",0,0,_31); | | _31:bat[:oid,:str] := nil; | | _37 := io.stdout(); | | sql.exportResult(_37,_32,""); | | end s0_3; | +----------------------------------------------------------------------- ------+ Rick Spickelmier | CTO | Success Metrics, Inc. | w (415) 738-2078 | ricks@successmetricsinc.com
Rick Spickelmier wrote:
Hi!
Dear Rick, thank you very much for submission of this bug report. It is indeed an error, also in the current head. We will look into the problem a.s.a.p. regards, Martin
I am running into this error:
batcalc.ifThenElse:requires bats of identical size
My server (running on Windows XP 64):
# MonetDB server v5.6.0, based on kernel v1.24.0
# Serving database 'demo'
# Compiled for i686-pc-win32/64bit with 32bit OIDs dynamically linked
The following recreates the problem:
CREATE TABLE test1 (col1 INTEGER);
INSERT INTO test1 VALUES (null);
INSERT INTO test1 VALUES (null);
SELECT
CASE WHEN col1=1 THEN 'ONE' END AS "pc1"
FROM
test1
GROUP BY "pc1";
Any ideas? Obviously the above isn't too interesting, but it a simplified test case from a more complex query on a much larger dataset. Seems to be related to GROUP BY on a CASE...
Thanks!
Rick
+-----------------------------------------------------------------------------+
| mal |
+=============================================================================+
| function user.s0_3():void; |
| _1:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",0); |
| _6:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",1); |
| _8{rows=2:lng} := algebra.kunion(_1,_6); |
| _1:bat[:oid,:int]{rows=1:lng} := nil; |
| _6:bat[:oid,:int]{rows=1:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",2); |
| _11{rows=2:lng} := algebra.kdifference(_8,_9); |
| _8{rows=2:lng} := nil; |
| _12{rows=3:lng} := algebra.kunion(_11,_9); |
| _11{rows=2:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := nil; |
| _13:bat[:oid,:oid]{rows=1:lng} := sql.bind_dbat("voc","test2",1); |
| _14{rows=1:lng} := bat.reverse(_13); |
| _13:bat[:oid,:oid]{rows=1:lng} := nil; |
| _15{rows=3:lng} := algebra.kdifference(_12,_14); |
| _14{rows=1:lng} := nil; |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := algebra.markT(_15,0@0); |
| _15{rows=3:lng} := nil; |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := bat.reverse(_17); |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.join(_18,_12); |
| _12{rows=3:lng} := nil; |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.==(_19,1); |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.ifthenelse(_20,"ONE",_23); |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| (ext36,grp34):= group.new(_24); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _27 := bat.mirror(ext36); |
| ext36 := nil; |
| _28 := algebra.join(_27,_19); |
| _27 := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _29:bat[:oid,:bit] := batcalc.==(_28,1); |
| _28 := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _31:bat[:oid,:str] := batcalc.ifthenelse(_29,"ONE",_30); |
| _29:bat[:oid,:bit] := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _32 := sql.resultSet(1,1,_31); |
| sql.rsColumn(_32,"voc.","pc1","char",0,0,_31); |
| _31:bat[:oid,:str] := nil; |
| _37 := io.stdout(); |
| sql.exportResult(_37,_32,""); |
| end s0_3; |
+-----------------------------------------------------------------------------+
Rick Spickelmier | CTO | Success Metrics, Inc. | w (415) 738-2078 | ricks@successmetricsinc.com mailto:ricks@successmetricsinc.com
------------------------------------------------------------------------
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_______________________________________________ MonetDB-users mailing list MonetDB-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-users
Martin/Niels,
The following error may be avoided by converting the query into an
in-line view as follows:
SELECT pc1
FROM (
SELECT CASE WHEN col1=1 THEN 'ONE' END AS "pc1"
FROM test1 ) sq
GROUP BY pc1;
I have done many such syntax changes for our use. I think it's the
CASE/NULL combination that's causing this issue. There are few more
such issues and I will let you know if I come across more.
-Venks
On Thu, Aug 28, 2008 at 2:06 AM, Martin Kersten
Rick Spickelmier wrote:
Hi!
Dear Rick,
thank you very much for submission of this bug report. It is indeed an error, also in the current head. We will look into the problem a.s.a.p.
regards, Martin
I am running into this error:
batcalc.ifThenElse:requires bats of identical size
My server (running on Windows XP 64):
# MonetDB server v5.6.0, based on kernel v1.24.0
# Serving database 'demo'
# Compiled for i686-pc-win32/64bit with 32bit OIDs dynamically linked
The following recreates the problem:
CREATE TABLE test1 (col1 INTEGER);
INSERT INTO test1 VALUES (null);
INSERT INTO test1 VALUES (null);
SELECT
CASE WHEN col1=1 THEN 'ONE' END AS "pc1"
FROM
test1
GROUP BY "pc1";
Any ideas? Obviously the above isn't too interesting, but it a simplified test case from a more complex query on a much larger dataset. Seems to be related to GROUP BY on a CASE...
Thanks!
Rick
+-----------------------------------------------------------------------------+
| mal |
+=============================================================================+
| function user.s0_3():void; |
| _1:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",0); |
| _6:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",1); |
| _8{rows=2:lng} := algebra.kunion(_1,_6); |
| _1:bat[:oid,:int]{rows=1:lng} := nil; |
| _6:bat[:oid,:int]{rows=1:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",2); |
| _11{rows=2:lng} := algebra.kdifference(_8,_9); |
| _8{rows=2:lng} := nil; |
| _12{rows=3:lng} := algebra.kunion(_11,_9); |
| _11{rows=2:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := nil; |
| _13:bat[:oid,:oid]{rows=1:lng} := sql.bind_dbat("voc","test2",1); |
| _14{rows=1:lng} := bat.reverse(_13); |
| _13:bat[:oid,:oid]{rows=1:lng} := nil; |
| _15{rows=3:lng} := algebra.kdifference(_12,_14); |
| _14{rows=1:lng} := nil; |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := algebra.markT(_15,0@0); |
| _15{rows=3:lng} := nil; |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := bat.reverse(_17); |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.join(_18,_12); |
| _12{rows=3:lng} := nil; |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.==(_19,1); |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.ifthenelse(_20,"ONE",_23); |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| (ext36,grp34):= group.new(_24); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _27 := bat.mirror(ext36); |
| ext36 := nil; |
| _28 := algebra.join(_27,_19); |
| _27 := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _29:bat[:oid,:bit] := batcalc.==(_28,1); |
| _28 := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _31:bat[:oid,:str] := batcalc.ifthenelse(_29,"ONE",_30); |
| _29:bat[:oid,:bit] := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _32 := sql.resultSet(1,1,_31); |
| sql.rsColumn(_32,"voc.","pc1","char",0,0,_31); |
| _31:bat[:oid,:str] := nil; |
| _37 := io.stdout(); |
| sql.exportResult(_37,_32,""); |
| end s0_3; |
+-----------------------------------------------------------------------------+
Rick Spickelmier | CTO | Success Metrics, Inc. | w (415) 738-2078 | ricks@successmetricsinc.com mailto:ricks@successmetricsinc.com
------------------------------------------------------------------------
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ------------------------------------------------------------------------
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------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ MonetDB-users mailing list MonetDB-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-users
Hi!
Thanks for the suggestion. My original query is more complex so the
reformulation was more interesting:
select case when col1=1 then 'one' end as "pc1", sum(col2) from
test3 group by "pc1";
transforming:
select pc1, sum(col2) from
(select case when col1=1 then 'one' end as "pc1", col2 from test3)
ta group by "pc1";
Thus I need to create the view with all of my columns, but remove any
aggregation from the view and put it in the final projection list since
that is where the grouping is occurring. I have to think about how to
do this since I machine generate these queries and it is not clear how
to restructure the code to produce the difference results...
If you are interested in the kinds of changes I had to make in moving my
code from SQL Server to MonetDB (not done yet... still a prototype):
+ CREATE INDEX is treated as a 'hint' in MonetDB; as a result I did not
create any indexes
+ No UPDATE ... FROM - transformed to old style update using multiple
tables
+ No TOP - still not sure about this one
+ Bulk load has no format file (COPY INTO), thus must populate all
columns in the input file, need explicit 'null' string
+ Bulk load only supports ASCII
+ No RANK, no CHECKSUM - can be handled as updates after the load
+ Different type names for datetime, text, varchar(max)
+ NUMERIC(P,S) must be P+S <=18, our standard is (19,6)
+ $ not supported in column names (no special characters allowed)
+ Column aliases are double quoted in projection lists: SELECT A AS
"Year" ...
+ Column aliases must be valid identifiers - SELECT A AS "# Threads" ...
does not work
+ SUM(1) doesn't seem to work, need to replace with COUNT(1)
+ had to change SQL server date functions - DATEDIFF, GETDATE, DATEPART
- to more standard SQL date functions
+ ORDER BY and GROUP BY on an expression fails, must be a projected
column
Note that performance based upon early tests seems to be significantly
better than SQL Server, except for the case of one type of query where
we use non-equijoins to join to tables (i.e. table1.col < table2.col).
Rick
-----Original Message-----
From: monetdb-users-bounces@lists.sourceforge.net
[mailto:monetdb-users-bounces@lists.sourceforge.net] On Behalf Of Venks
Sent: Thursday, August 28, 2008 5:34 AM
To: Communication channel for MonetDB users
Subject: Re: [MonetDB-users] batcalc.ifThenElse:requires bats of
identicalsize
Martin/Niels,
The following error may be avoided by converting the query into an
in-line view as follows:
SELECT pc1
FROM (
SELECT CASE WHEN col1=1 THEN 'ONE' END AS "pc1"
FROM test1 ) sq
GROUP BY pc1;
I have done many such syntax changes for our use. I think it's the
CASE/NULL combination that's causing this issue. There are few more
such issues and I will let you know if I come across more.
-Venks
On Thu, Aug 28, 2008 at 2:06 AM, Martin Kersten
Rick Spickelmier wrote:
Hi!
Dear Rick,
thank you very much for submission of this bug report. It is indeed an error, also in the current head. We will look into the problem a.s.a.p.
regards, Martin
I am running into this error:
batcalc.ifThenElse:requires bats of identical size
My server (running on Windows XP 64):
# MonetDB server v5.6.0, based on kernel v1.24.0
# Serving database 'demo'
# Compiled for i686-pc-win32/64bit with 32bit OIDs dynamically linked
The following recreates the problem:
CREATE TABLE test1 (col1 INTEGER);
INSERT INTO test1 VALUES (null);
INSERT INTO test1 VALUES (null);
SELECT
CASE WHEN col1=1 THEN 'ONE' END AS "pc1"
FROM
test1
GROUP BY "pc1";
Any ideas? Obviously the above isn't too interesting, but it a simplified test case from a more complex query on a much larger dataset. Seems to be related to GROUP BY on a CASE...
Thanks!
Rick
+----------------------------------------------------------------------- ------+
| mal |
+======================================================================= ======+
| function user.s0_3():void; |
| _1:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",0); |
| _6:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",1); |
| _8{rows=2:lng} := algebra.kunion(_1,_6); |
| _1:bat[:oid,:int]{rows=1:lng} := nil; |
| _6:bat[:oid,:int]{rows=1:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := sql.bind("voc","test2","col1",2); |
| _11{rows=2:lng} := algebra.kdifference(_8,_9); |
| _8{rows=2:lng} := nil; |
| _12{rows=3:lng} := algebra.kunion(_11,_9); |
| _11{rows=2:lng} := nil; |
| _9:bat[:oid,:int]{rows=1:lng} := nil; |
| _13:bat[:oid,:oid]{rows=1:lng} := sql.bind_dbat("voc","test2",1); |
| _14{rows=1:lng} := bat.reverse(_13); |
| _13:bat[:oid,:oid]{rows=1:lng} := nil; |
| _15{rows=3:lng} := algebra.kdifference(_12,_14); |
| _14{rows=1:lng} := nil; |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := algebra.markT(_15,0@0); |
| _15{rows=3:lng} := nil; |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := bat.reverse(_17); |
| _17{rows=3:lng,tlb>=0@0:oid,tub<1@0:oid} := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.join(_18,_12); |
| _12{rows=3:lng} := nil; |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.==(_19,1); |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := |
: batcalc.ifthenelse(_20,"ONE",_23); |
| _20:bat[:oid,:bit]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _23{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| (ext36,grp34):= group.new(_24); |
| _24:bat[:oid,:str]{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _27 := bat.mirror(ext36); |
| ext36 := nil; |
| _28 := algebra.join(_27,_19); |
| _27 := nil; |
| _19{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _29:bat[:oid,:bit] := batcalc.==(_28,1); |
| _28 := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := algebra.project(_18,nil:str); |
| _18{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _31:bat[:oid,:str] := batcalc.ifthenelse(_29,"ONE",_30); |
| _29:bat[:oid,:bit] := nil; |
| _30{rows=3:lng,hlb>=0@0:oid,hub<1@0:oid} := nil; |
| _32 := sql.resultSet(1,1,_31); |
| sql.rsColumn(_32,"voc.","pc1","char",0,0,_31);
|
| _31:bat[:oid,:str] := nil; |
| _37 := io.stdout(); |
| sql.exportResult(_37,_32,"");
|
| end s0_3;
|
+----------------------------------------------------------------------- ------+
Rick Spickelmier | CTO | Success Metrics, Inc. | w (415) 738-2078 | ricks@successmetricsinc.com mailto:ricks@successmetricsinc.com
-
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________ MonetDB-users mailing list MonetDB-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-users
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great
------------------------------------------------------------------------ - prizes
Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ MonetDB-users mailing list MonetDB-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-users
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participants (3)
-
Martin Kersten -
Rick Spickelmier -
Venks