granicus.if.org Git - postgresql/commit

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

author	Tom Lane <tgl@sss.pgh.pa.us>
	Sun, 4 Jan 2004 03:51:52 +0000 (03:51 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Sun, 4 Jan 2004 03:51:52 +0000 (03:51 +0000)
commit	82b4dd394f50f75a34d3ddc1c7d54b8d8fcace33
tree	1fb959074c117f48b987a77e7632ec6bbcc583da	tree \| snapshot
parent	21a12022818b6ac418d7a1544e92f8b13d61cc91	commit \| diff

Merge restrictlist_selectivity into clauselist_selectivity by
teaching the latter to accept either RestrictInfo nodes or bare
clause expressions; and cache the selectivity result in the RestrictInfo
node when possible. This extends the caching behavior of approx_selectivity
to many more contexts, and should reduce duplicate selectivity
calculations.

12 files changed:

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

RSS Atom

src/backend/nodes/copyfuncs.c		diff \| blob \| history
src/backend/nodes/outfuncs.c		diff \| blob \| history
src/backend/optimizer/path/clausesel.c		diff \| blob \| history
src/backend/optimizer/path/costsize.c		diff \| blob \| history
src/backend/optimizer/path/indxpath.c		diff \| blob \| history
src/backend/optimizer/plan/initsplan.c		diff \| blob \| history
src/backend/optimizer/prep/prepunion.c		diff \| blob \| history
src/backend/optimizer/util/clauses.c		diff \| blob \| history
src/backend/optimizer/util/restrictinfo.c		diff \| blob \| history
src/include/nodes/relation.h		diff \| blob \| history
src/include/optimizer/clauses.h		diff \| blob \| history
src/include/optimizer/cost.h		diff \| blob \| history