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(parent: 75e90bb) | patch
Tweak nodeBitmapAnd to stop evaluating sub-plan scans if it finds it's
authorTom Lane <tgl@sss.pgh.pa.us>
Sun, 28 Aug 2005 22:47:20 +0000 (22:47 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Sun, 28 Aug 2005 22:47:20 +0000 (22:47 +0000)
commit46a0eee3006b11a15b73426c8146ed5ab32e1d62
tree84e646e836446437c7fd310fd0aaf167b561e4dctree
parent75e90bbf69efb3cee8d3af9c07d345dd9540a7cccommit | diff
Tweak nodeBitmapAnd to stop evaluating sub-plan scans if it finds it's
got an empty bitmap after any step; the remaining subplans can no longer
affect the result.  Per a suggestion from Ilia Kantor.
src/backend/executor/nodeBitmapAnd.c diff | blob | blame | history
src/backend/nodes/tidbitmap.c diff | blob | blame | history
src/backend/optimizer/path/indxpath.c diff | blob | blame | history
src/include/nodes/tidbitmap.h diff | blob | blame | history
Heikki's random PostgreSQL patches