Tom Lane 1a95f12702 Eliminate a lot of list-management overhead within join_search_one_level ... by adding a requirement that build_join_rel add new join RelOptInfos to the appropriate list immediately at creation. Per report from Robert Haas, the list_concat_unique_ptr() calls that this change eliminates were taking the lion's share of the runtime in larger join problems. This doesn't do anything to fix the fundamental combinatorial explosion in large join problems, but it should push out the threshold of pain a bit further. Note: because this changes the order in which joinrel lists are built, it might result in changes in selected plans in cases where different alternatives have exactly the same costs. There is one example in the regression tests.		2009-11-28 00:46:19 +00:00
..
examples	8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list	2009-06-11 14:49:15 +00:00
locale	8.4 pgindent run, with new combined Linux/FreeBSD/MinGW typedef list	2009-06-11 14:49:15 +00:00
mb	Use diff's -w switch only on Windows, to avoid problems with inconsistent	2009-11-23 16:02:24 +00:00
performance	Add CVS tag lines to files that were lacking them.	2006-03-11 04:38:42 +00:00
regress	Eliminate a lot of list-management overhead within join_search_one_level	2009-11-28 00:46:19 +00:00
thread	Update copyright for 2009.	2009-01-01 17:24:05 +00:00
Makefile	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00