database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-07-29 08:01:23 +03:00
Code Activity

Correctly handle NULLs in IN operators. Ticket #2273.

Browse Source 
The changes in where.c and in the WhereLevel.aInLoop structure are
not strictly necessary to fix this problem - they just make the code
easier to read.  Only the change in OP_Next/OP_Prev operator of vdbe.c
is required. (CVS 3735)

FossilOrigin-Name: 26348556d824c032851e409ac510cddb55c200bf
This commit is contained in:
drh
2007-03-28 14:30:06 +00:00
parent 930cc5864e
commit 72e8fa42f9
6 changed files with 123 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
test/where4.test
View File

@ -15,7 +15,7 @@
# that IS NULL phrases are correctly optimized. But you can never
# have too many tests, so some other tests are thrown in as well.
#
# $Id: where4.test,v 1.2 2007/01/25 16:56:08 drh Exp $
# $Id: where4.test,v 1.3 2007/03/28 14:30:09 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -173,7 +173,60 @@ do_test where4-4.4 {
WHERE t1.col1 IS NULL;
}
} {}
# Ticket #2273. Problems with IN operators and NULLs.
#
do_test where4-5.1 {
execsql {
CREATE TABLE t4(x,y,z,PRIMARY KEY(x,y));
}
execsql {
SELECT *
FROM t2 LEFT JOIN t4 b1
LEFT JOIN t4 b2 ON b2.x=b1.x AND b2.y IN (b1.y);
}
} {1 {} {} {} {} {} {} 2 {} {} {} {} {} {} 3 {} {} {} {} {} {}}
do_test where4-5.2 {
execsql {
INSERT INTO t4 VALUES(1,1,11);
INSERT INTO t4 VALUES(1,2,12);
INSERT INTO t4 VALUES(1,3,13);
INSERT INTO t4 VALUES(2,2,22);
SELECT rowid FROM t4 WHERE x IN (1,9,2,5) AND y IN (1,3,NULL,2) AND z!=13;
}
} {1 2 4}
do_test where4-5.3 {
execsql {
SELECT rowid FROM t4 WHERE x IN (1,9,NULL,2) AND y IN (1,3,2) AND z!=13;
}
} {1 2 4}
do_test where4-6.1 {
execsql {
CREATE TABLE t5(a,b,c,d,e,f,UNIQUE(a,b,c,d,e,f));
INSERT INTO t5 VALUES(1,1,1,1,1,11111);
INSERT INTO t5 VALUES(2,2,2,2,2,22222);
INSERT INTO t5 VALUES(1,2,3,4,5,12345);
INSERT INTO t5 VALUES(2,3,4,5,6,23456);
}
execsql {
SELECT rowid FROM t5
WHERE a IN (1,9,2) AND b=2 AND c IN (1,2,3,4) AND d>0
}
} {3 2}
do_test where4-6.2 {
execsql {
SELECT rowid FROM t5
WHERE a IN (1,NULL,2) AND b=2 AND c IN (1,2,3,4) AND d>0
}
} {3 2}
do_test where4-7.1 {
execsql {
CREATE TABLE t6(y,z,PRIMARY KEY(y,z));
}
execsql {
SELECT * FROM t6 WHERE y=NULL AND z IN ('hello');
}
} {}
integrity_check {where4-99.0}