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Avoid a double-free in an out-of-memory situation with a USING

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clause or NATURAL JOIN.  Ticket #2789. (CVS 4551)

FossilOrigin-Name: 596694752c5935ae50ad38d3b41bbda39ca999d8
This commit is contained in:
drh
2007-11-23 13:42:51 +00:00
parent 2e6037cd23
commit f4ce8ed048
4 changed files with 22 additions and 16 deletions
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15
test/mallocE.test
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@ -9,9 +9,9 @@
#
#***********************************************************************
#
# This test script checks that ticket #2784 has been fixed.
# This test script checks that tickets #2784 and #2789 have been fixed.
#
# $Id: mallocE.test,v 1.1 2007/11/21 15:24:01 drh Exp $
# $Id: mallocE.test,v 1.2 2007/11/23 13:42:53 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@ -25,15 +25,24 @@ ifcapable !memdebug {
}
source $testdir/malloc_common.tcl
# ticket #2784
#
set PREP {
PRAGMA page_size = 1024;
CREATE TABLE t1(a, b, c);
CREATE TABLE t2(x, y, z);
}
do_malloc_test mallocE-1 -sqlprep $PREP -sqlbody {
SELECT p, q FROM (SELECT a+b AS p, b+c AS q FROM t1, t2 WHERE c>5)
LEFT JOIN t2 ON p=x;
}
# Ticket #2789
#
do_malloc_test mallocE-2 -sqlprep $PREP -sqlbody {
SELECT x, y2 FROM (SELECT a+b AS x, b+c AS y2 FROM t1, t2 WHERE c>5)
LEFT JOIN t2 USING(x) WHERE y2>11;
}
finish_test