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author	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 26 Dec 2006 19:27:10 +0000 (19:27 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 26 Dec 2006 19:27:10 +0000 (19:27 +0000)
commit	cbca48aa240190f3eacfcddaee09b5f16ebf46bf
tree	892292f217dfcd9336f238eb675bbab5568cf46d	tree
parent	b328083249dbc6269a2bea5edae4ee247a830310	commit \| diff

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.

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src/backend/executor/nodeFunctionscan.c		diff \| blob \| blame \| history
src/backend/executor/nodeIndexscan.c		diff \| blob \| blame \| history
src/backend/executor/nodeResult.c		diff \| blob \| blame \| history
src/backend/executor/nodeSeqscan.c		diff \| blob \| blame \| history
src/backend/executor/nodeSubqueryscan.c		diff \| blob \| blame \| history
src/backend/executor/nodeTidscan.c		diff \| blob \| blame \| history