Tom Lane c473d92351 Fix cost_mergejoin's failure to adjust for rescanning of non-unique merge join ... keys when considering a semi or anti join. This requires estimating the selectivity of the merge qual as though it were a regular inner join condition. To allow caching both that and the real outer-join-aware selectivity, split RestrictInfo.this_selec into two fields. This fixes one of the problems reported by Kevin Grittner.		2009-02-06 23:43:24 +00:00
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Makefile	Refactor backend makefiles to remove lots of duplicate code	2008-02-19 10:30:09 +00:00
prepjointree.c	Update copyright for 2009.	2009-01-01 17:24:05 +00:00
prepqual.c	Update copyright for 2009.	2009-01-01 17:24:05 +00:00
preptlist.c	Update copyright for 2009.	2009-01-01 17:24:05 +00:00
prepunion.c	Fix cost_mergejoin's failure to adjust for rescanning of non-unique merge join	2009-02-06 23:43:24 +00:00