275 Commits

Author	SHA1	Message	Date
Tom Lane	ff38837fe9	Fix nasty bug in optimization of multiway joins: optimizer ... would sometimes generate a plan that omitted a sort step before merge.	1999-04-03 00:18:28 +00:00
Bruce Momjian	bd6f98af31	I suggest the following portability patch, which does not ... change functionality, but makes the code more ANSI C'ish. My AIX xlc compiler barfs on all of these. Can someone please review and apply to current. <<port.patch>> Thanks Andreas	1999-03-19 18:56:43 +00:00
Bruce Momjian	dc02fd709f	cleanups	1999-03-18 19:59:55 +00:00
Bruce Momjian	f7430af934	Fix OR index selectivity problem.	1999-03-08 14:01:57 +00:00
Bruce Momjian	c831d08fac	Fix for Alpha OR selectivity bug.	1999-03-08 13:35:50 +00:00
Tom Lane	e0345e09bf	Partial fix for copied-plan bugs reported by Hiroshi Inoue: ... _copyResult didn't copy subPlan structure completely. _copyAgg is still busted, apparently because of changes from EXCEPT/INTERSECT patch (get_agg_tlist_references is no longer sufficient to find all aggregates). No time to look at that tonight, however.	1999-03-03 00:02:42 +00:00
Tom Lane	b204d10c79	Executor no longer cares about mergejoinop, mergerightorder, mergeleftorder, ... so remove them from MergeJoin node. Hack together a partial solution for commuted mergejoin operators --- yesterday a mergejoin int4 = int8 would crash if the planner decided to commute it, today it works. The planner's representation of mergejoins really needs a rewrite though. Also, further testing of mergejoin ops in opr_sanity regress test.	1999-03-01 00:10:44 +00:00
Bruce Momjian	ceb233ed11	more cleanup	1999-02-22 06:08:48 +00:00
Bruce Momjian	1ed5cbbfd8	Final optimizer cleanups.	1999-02-22 05:26:58 +00:00
Marc G. Fournier	8c3e8a8a0e	From: Tatsuo Ishii <t-ishii@sra.co.jp> ... Ok. I made patches replacing all of "#if FALSE" or "#if 0" to "#ifdef NOT_USED" for current. I have tested these patches in that the postgres binaries are identical.	1999-02-21 03:49:55 +00:00
Bruce Momjian	23c30246d7	pathkeys.c cleanup.	1999-02-21 01:55:03 +00:00
Bruce Momjian	75cccd0ad3	pathkeys fixes	1999-02-20 19:02:43 +00:00
Bruce Momjian	0ff2733355	Update pathkeys comparison function.	1999-02-20 18:01:02 +00:00
Bruce Momjian	148ec3b1d8	update pathkey description.	1999-02-20 16:32:35 +00:00
Bruce Momjian	9188aab758	add pathkeys description.	1999-02-20 16:28:20 +00:00
Bruce Momjian	67fd67f53a	another rename of optimizer	1999-02-20 15:27:42 +00:00
Bruce Momjian	612b8434e4	optimizer cleanup	1999-02-19 05:18:06 +00:00
Bruce Momjian	8ab72a38df	optimizer cleanup	1999-02-19 02:05:20 +00:00
Bruce Momjian	cd38f08598	rename optimizer file name	1999-02-18 19:58:53 +00:00
Bruce Momjian	b4e7510e09	Enable bushy and right-hand queries by default.	1999-02-18 06:01:11 +00:00
Bruce Momjian	65ccd1039a	Enable bushy plans by default.	1999-02-18 05:26:34 +00:00
Bruce Momjian	e78662d879	optimizer cleanup	1999-02-18 04:55:54 +00:00
Bruce Momjian	d977ff7b52	more optimizer cleanups	1999-02-18 04:45:36 +00:00
Bruce Momjian	31cce21fb0	Fix bushy plans. Cleanup.	1999-02-18 00:49:48 +00:00
Bruce Momjian	c82ca4c158	Re-enable bushy plans. Vadim want them.	1999-02-16 00:41:03 +00:00
Bruce Momjian	cd550c7672	Update optimizer readme.	1999-02-15 22:19:01 +00:00
Bruce Momjian	e6bf7b4d93	rename	1999-02-15 05:56:07 +00:00
Bruce Momjian	56bb23a8fe	optimizer rename	1999-02-15 05:50:02 +00:00
Bruce Momjian	50034a852d	optimizer rename	1999-02-15 05:28:10 +00:00
Bruce Momjian	c5449d5354	otherrels is now unjoined_rels	1999-02-15 05:21:12 +00:00
Bruce Momjian	82682ff31f	optimizer rename	1999-02-15 03:59:28 +00:00
Bruce Momjian	ba2883b264	Remove duplicate geqo functions, and more optimizer cleanup	1999-02-15 03:22:37 +00:00
Tom Lane	944d3c395e	Replace non-idiomatic nconc(x, lcons(y, NIL)) with lappend(x, y).	1999-02-15 02:04:58 +00:00
Tom Lane	dec354ca97	Fix a number of places that made faulty assumptions about ... what is_opclause will accept.	1999-02-15 01:06:59 +00:00
Tom Lane	5500039843	Fix optimizer coredump with unary-operator WHERE clauses. ... A test case is: create table linetab (x line); select * from linetab where ?| x; which coredumps in 6.4.2 and current sources.	1999-02-14 22:24:25 +00:00
Bruce Momjian	d8b482be7c	optimizer cleanup.	1999-02-14 05:27:12 +00:00
Bruce Momjian	808a6df065	optimizer rename.	1999-02-14 05:14:15 +00:00
Bruce Momjian	61aa825876	Optimizer rename.	1999-02-14 04:57:02 +00:00
Bruce Momjian	6724a50787	Change my-function-name-- to my_function_name, and optimizer renames.	1999-02-13 23:22:53 +00:00
Bruce Momjian	ad4b27ac3f	Optimizer cleanup.	1999-02-12 17:25:05 +00:00
Bruce Momjian	c0d17c7aee	JoinPath -> NestPath for nested loop.	1999-02-12 06:43:53 +00:00
Bruce Momjian	3fdb9bb9c7	Fix optimizer and make faster.	1999-02-12 05:57:08 +00:00
Bruce Momjian	55d0465009	optimizer update	1999-02-12 02:37:52 +00:00
Bruce Momjian	34ecb9d850	Optimizer cleanups.	1999-02-11 21:05:28 +00:00
Bruce Momjian	c873fcdaf4	Optimizer cleanup.	1999-02-11 17:21:51 +00:00
Bruce Momjian	8dc2209f71	optimizer cleanup	1999-02-11 17:03:17 +00:00
Bruce Momjian	6de25f09b1	Optimizer cleanup.	1999-02-11 17:00:49 +00:00
Bruce Momjian	4ea3f728e9	More optimization.	1999-02-11 16:09:41 +00:00
Bruce Momjian	d244df95db	More optimizer speedups.	1999-02-11 14:59:09 +00:00
Bruce Momjian	129543e22d	optimizer cleanup	1999-02-11 05:29:08 +00:00