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Do all WHERE clauses tests, even if an index is used for lookup so that

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we know the test cannot be FALSE.  The test might end up being NULL in which
case it would need to be treated as false.  Ticket #461. (CVS 1103)

FossilOrigin-Name: 5aea81488b2d3bcdc009ccf0f0ffcda046e38d79
This commit is contained in:
drh
2003-09-27 00:41:27 +00:00
parent f911221a1e
commit 562528c480
5 changed files with 82 additions and 24 deletions
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10
test/index.test
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@ -11,7 +11,7 @@
# This file implements regression tests for SQLite library. The
# focus of this file is testing the CREATE INDEX statement.
#
# $Id: index.test,v 1.23 2003/06/15 23:42:25 drh Exp $
# $Id: index.test,v 1.24 2003/09/27 00:41:28 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -473,22 +473,22 @@ do_test index-14.8 {
execsql {
SELECT c FROM t6 WHERE a<'abc';
}
} {3 5 2 1}
} {5 2 1}
do_test index-14.9 {
execsql {
SELECT c FROM t6 WHERE a<='abc';
}
} {3 5 2 1 4}
} {5 2 1 4}
do_test index-14.10 {
execsql {
SELECT c FROM t6 WHERE a<='';
}
} {3 5 2 1}
} {5 2 1}
do_test index-14.11 {
execsql {
SELECT c FROM t6 WHERE a<'';
}
} {3 5}
} {5}
integrity_check index-14.12
do_test index-15.1 {

58
test/null.test
View File

@ -173,6 +173,64 @@ do_test null-7.2 {
}
} {1 2 3}
# Ticket #461 - Make sure nulls are handled correctly when doing a
# lookup using an index.
#
do_test null-8.1 {
execsql {
CREATE TABLE t4(x,y);
INSERT INTO t4 VALUES(1,11);
INSERT INTO t4 VALUES(2,NULL);
SELECT x FROM t4 WHERE y=NULL;
}
} {}
do_test null-8.2 {
execsql {
SELECT x FROM t4 WHERE y IN (33,NULL);
}
} {}
do_test null-8.3 {
execsql {
SELECT x FROM t4 WHERE y<33 ORDER BY x;
}
} {1}
do_test null-8.4 {
execsql {
SELECT x FROM t4 WHERE y>6 ORDER BY x;
}
} {1}
do_test null-8.5 {
execsql {
SELECT x FROM t4 WHERE y!=33 ORDER BY x;
}
} {1}
do_test null-8.11 {
execsql {
CREATE INDEX t4i1 ON t4(y);
SELECT x FROM t4 WHERE y=NULL;
}
} {}
do_test null-8.12 {
execsql {
SELECT x FROM t4 WHERE y IN (33,NULL);
}
} {}
do_test null-8.13 {
execsql {
SELECT x FROM t4 WHERE y<33 ORDER BY x;
}
} {1}
do_test null-8.14 {
execsql {
SELECT x FROM t4 WHERE y>6 ORDER BY x;
}
} {1}
do_test null-8.15 {
execsql {
SELECT x FROM t4 WHERE y!=33 ORDER BY x;
}
} {1}
finish_test