From: | tgl(at)postgresql(dot)org (Tom Lane) |
---|---|
To: | pgsql-committers(at)postgresql(dot)org |
Subject: | pgsql: Repair bug #2839: the various ExecReScan functions need to reset |
Date: | 2006-12-26 19:27:04 |
Message-ID: | 20061226192704.2BD929FA2D4@postgresql.org |
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Lists: | pgsql-committers |
Log Message:
-----------
Repair bug #2839: the various ExecReScan functions need to reset
ps_TupFromTlist in plan nodes that make use of it. This was being done
correctly in join nodes and Result nodes but not in any relation-scan nodes.
Bug would lead to bogus results if a set-returning function appeared in the
targetlist of a subquery that could be rescanned after partial execution,
for example a subquery within EXISTS(). Bug has been around forever :-(
... surprising it wasn't reported before.
Tags:
----
REL8_1_STABLE
Modified Files:
--------------
pgsql/src/backend/executor:
nodeBitmapHeapscan.c (r1.4.2.1 -> r1.4.2.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeBitmapHeapscan.c.diff?r1=1.4.2.1&r2=1.4.2.2)
nodeFunctionscan.c (r1.35 -> r1.35.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeFunctionscan.c.diff?r1=1.35&r2=1.35.2.1)
nodeIndexscan.c (r1.104.2.1 -> r1.104.2.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeIndexscan.c.diff?r1=1.104.2.1&r2=1.104.2.2)
nodeResult.c (r1.32 -> r1.32.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeResult.c.diff?r1=1.32&r2=1.32.2.1)
nodeSeqscan.c (r1.54 -> r1.54.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeSeqscan.c.diff?r1=1.54&r2=1.54.2.1)
nodeSubqueryscan.c (r1.27 -> r1.27.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeSubqueryscan.c.diff?r1=1.27&r2=1.27.2.1)
nodeTidscan.c (r1.43 -> r1.43.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeTidscan.c.diff?r1=1.43&r2=1.43.2.1)
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