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author	Tom Lane <tgl@sss.pgh.pa.us>
	Sat, 20 Jun 2009 18:45:28 +0000 (18:45 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Sat, 20 Jun 2009 18:45:28 +0000 (18:45 +0000)
commit	7f83b61cc26eeac0c5a09add49f6cf899f87fc0b
tree	49140f9f252ec7533b17ff97613026dd0a751ee4	tree
parent	6dfbb12afa4743f9bec927dd020b80588a4b4e53	commit \| diff

Fix things so that array_agg_finalfn does not modify or free its input
ArrayBuildState, per trouble report from Merlin Moncure. By adopting
this fix, we are essentially deciding that aggregate final-functions
should not modify their inputs ever. Adjust documentation and comments
to match that conclusion.

Simon's dev repository

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doc/src/sgml/xaggr.sgml		diff \| blob \| blame \| history
src/backend/executor/nodeWindowAgg.c		diff \| blob \| blame \| history
src/backend/utils/adt/array_userfuncs.c		diff \| blob \| blame \| history
src/backend/utils/adt/arrayfuncs.c		diff \| blob \| blame \| history