39 Commits (6f9ff92cc0ff6a07d2fe38abe044286ee98d44a0)

Author	SHA1	Message	Date
Bruce Momjian	6f9ff92cc0	Tid access method feature from Hiroshi Inoue, Inoue@tpf.co.jp	27 years ago
Tom Lane	e6381966c1	Major planner/optimizer revision: get rid of PathOrder node type, ... store all ordering information in pathkeys lists (which are now lists of lists of PathKeyItem nodes, not just lists of lists of vars). This was a big win --- the code is smaller and IMHO more understandable than it was, even though it handles more cases. I believe the node changes will not force an initdb for anyone; planner nodes don't show up in stored rules.	27 years ago
Tom Lane	9e7e29e6c9	First cut at doing LIKE/regex indexing optimization in ... optimizer rather than parser. This has many advantages, such as not getting fooled by chance uses of operator names ~ and ~~ (the operators are identified by OID now), and not creating useless comparison operations in contexts where the comparisons will not actually be used as indexquals. The new code also recognizes exact-match LIKE and regex patterns, and produces an = indexqual instead of >= and <=. This change does NOT fix the problem with non-ASCII locales: the code still doesn't know how to generate an upper bound indexqual for non-ASCII collation order. But it's no worse than before, just the same deficiency in a different place... Also, dike out loc_restrictinfo fields in Plan nodes. These were doing nothing useful in the absence of 'expensive functions' optimization, and they took a considerable amount of processing to fill in.	27 years ago
Tom Lane	8ae29a1d40	Remove 'restrictinfojoinid' field from RestrictInfo nodes. ... The only place it was being used was as temporary storage in indxpath.c, and the logic was wrong: the same restrictinfo node could get chosen to carry the info for two different joins. Right fix is to return a second list of unjoined-relids parallel to the list of clause groups.	27 years ago
Tom Lane	ac4913a0dd	Clean up messy clause-selectivity code in clausesel.c; repair bug ... identified by Hiroshi (incorrect cost attributed to OR clauses after multiple passes through set_rest_selec()). I think the code was trying to allow selectivities of OR subclauses to be passed in from outside, but noplace was actually passing any useful data, and set_rest_selec() was passing wrong data. Restructure representation of "indexqual" in IndexPath nodes so that it is the same as for indxqual in completed IndexScan nodes: namely, a toplevel list with an entry for each pass of the index scan, having sublists that are implicitly-ANDed index qual conditions for that pass. You don't want to know what the old representation was :-( Improve documentation of OR-clause indexscan functions. Remove useless 'notclause' field from RestrictInfo nodes. (This might force an initdb for anyone who has stored rules containing RestrictInfos, but I do not think that RestrictInfo ever appears in completed plans.)	27 years ago
Bruce Momjian	a9591ce66a	Change #include's to use <> and "" as appropriate.	27 years ago
Bruce Momjian	4b2c2850bf	Clean up #include in /include directory. Add scripts for checking includes.	27 years ago
Bruce Momjian	fcff1cdf4e	Another pgindent run. Sorry folks.	27 years ago
Bruce Momjian	07842084fe	pgindent run over code.	27 years ago
Jan Wieck	79c2576f77	Replaced targetlist entry in GroupClause by reference number ... in Resdom and GroupClause so changing of resno's doesn't confuse the grouping any more. Jan	27 years ago
Bruce Momjian	1e70c1fe5d	comments cleanup.	27 years ago
Bruce Momjian	75cccd0ad3	pathkeys fixes	27 years ago
Bruce Momjian	9188aab758	add pathkeys description.	27 years ago
Bruce Momjian	31cce21fb0	Fix bushy plans. Cleanup.	27 years ago
Bruce Momjian	c5449d5354	otherrels is now unjoined_rels	27 years ago
Bruce Momjian	ba2883b264	Remove duplicate geqo functions, and more optimizer cleanup	27 years ago
Bruce Momjian	6724a50787	Change my-function-name-- to my_function_name, and optimizer renames.	27 years ago
Bruce Momjian	ad4b27ac3f	Optimizer cleanup.	27 years ago
Bruce Momjian	c0d17c7aee	JoinPath -> NestPath for nested loop.	27 years ago
Bruce Momjian	3fdb9bb9c7	Fix optimizer and make faster.	27 years ago
Bruce Momjian	d244df95db	More optimizer speedups.	27 years ago
Bruce Momjian	f859c81c18	Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things.	27 years ago
Bruce Momjian	fe35ffe7e0	Major optimizer improvement for joining a large number of tables.	27 years ago
Bruce Momjian	54e5d25666	Optimizer cleanup.	27 years ago
Bruce Momjian	6e2edaf4b8	Optimizer cleanup.	27 years ago
Bruce Momjian	ce3afccf7f	More optimizer cleanups.	27 years ago
Bruce Momjian	18fbe4142f	More optimizer renaming HInfo -> HashInfo.	27 years ago
Bruce Momjian	8d9237d485	Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README.	27 years ago
Bruce Momjian	fa1a8d6a97	OK, folks, here is the pgindent output.	28 years ago
Bruce Momjian	af74855a60	Renaming cleanup, no pgindent yet.	28 years ago
Bruce Momjian	d9be0ff432	MergeSort was sometimes called mergejoin and was confusing. Now ... it is now only mergejoin.	28 years ago
Bruce Momjian	584f9438ca	Rename Rel to RelOptInfo.	28 years ago
Bruce Momjian	59f6a57e59	Used modified version of indent that understands over 100 typedefs.	29 years ago
Bruce Momjian	319dbfa736	Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting.	29 years ago
Bruce Momjian	1ccd423235	Massive commit to run PGINDENT on all *.c and *.h files.	29 years ago
Marc G. Fournier	d146305065	Patches for Vadim's multikey indexing...	29 years ago
Marc G. Fournier	87b07a3974	Further include file cleanups	30 years ago
Marc G. Fournier	99412aef23	remove: ... #include "postgres.h" #include "c.h"	30 years ago
Marc G. Fournier	1054097464	More cleanups of the include files ... - centralizing to simplify the -I's required to compile	30 years ago
Marc G. Fournier	d31084e9d1	Postgres95 1.01 Distribution - Virgin Sources	30 years ago