postgresql/src/backend/optimizer/path
Tom Lane 6254465d06 Extend code that deduces implied equality clauses to detect whether a
clause being added to a particular restriction-clause list is redundant
with those already in the list.  This avoids useless work at runtime,
and (perhaps more importantly) keeps the selectivity estimation routines
from generating too-small estimates of numbers of output rows.
Also some minor improvements in OPTIMIZER_DEBUG displays.
2001-10-18 16:11:42 +00:00
..
_deadcode Remove dashes in comments that don't need them, rewrap with pgindent. 2001-03-22 06:16:21 +00:00
Makefile Fix relative path references so that make knowns which dependencies refer 2000-08-31 16:12:35 +00:00
allpaths.c Extend code that deduces implied equality clauses to detect whether a 2001-10-18 16:11:42 +00:00
clausesel.c Optimizer can now estimate selectivity of IS NULL, IS NOT NULL, 2001-06-25 21:11:45 +00:00
costsize.c Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in 2001-08-21 16:36:06 +00:00
indxpath.c Restructure pg_opclass, pg_amop, and pg_amproc per previous discussions in 2001-08-21 16:36:06 +00:00
joinpath.c Further work on making use of new statistics in planner. Adjust APIs 2001-06-05 05:26:05 +00:00
joinrels.c Extend code that deduces implied equality clauses to detect whether a 2001-10-18 16:11:42 +00:00
orindxpath.c Improve planning of OR indexscan plans: for quals like 2001-06-05 17:13:52 +00:00
pathkeys.c Extend code that deduces implied equality clauses to detect whether a 2001-10-18 16:11:42 +00:00
tidpath.c Further work on making use of new statistics in planner. Adjust APIs 2001-06-05 05:26:05 +00:00