granicus.if.org Git - postgresql/commit

]> granicus.if.org Git - postgresql/commit

author	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 7 Oct 2008 19:27:04 +0000 (19:27 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 7 Oct 2008 19:27:04 +0000 (19:27 +0000)
commit	0d115dde82bf368ae0f9755113bd8fd53ac0b64b
tree	a6a1b7b4cfcf1b8ecd49ec280898fc678efdd67d	tree \| snapshot
parent	059349be0c7fb2bfc1076d70c8307f5e31d8ff59	commit \| diff

Extend CTE patch to support recursive UNION (ie, without ALL). The
implementation uses an in-memory hash table, so it will poop out for very
large recursive results ... but the performance characteristics of a
sort-based implementation would be pretty unpleasant too.

13 files changed:

Unnamed repository; edit this file 'description' to name the repository.

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doc/src/sgml/queries.sgml		diff \| blob \| history
doc/src/sgml/ref/select.sgml		diff \| blob \| history
src/backend/executor/nodeRecursiveunion.c		diff \| blob \| history
src/backend/nodes/copyfuncs.c		diff \| blob \| history
src/backend/nodes/outfuncs.c		diff \| blob \| history
src/backend/optimizer/plan/createplan.c		diff \| blob \| history
src/backend/optimizer/prep/prepunion.c		diff \| blob \| history
src/backend/parser/parse_cte.c		diff \| blob \| history
src/include/nodes/execnodes.h		diff \| blob \| history
src/include/nodes/plannodes.h		diff \| blob \| history
src/include/optimizer/planmain.h		diff \| blob \| history
src/test/regress/expected/with.out		diff \| blob \| history
src/test/regress/sql/with.sql		diff \| blob \| history