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141 commits

Author SHA1 Message Date
Bruce Momjian
07842084fe pgindent run over code. 1999-05-25 16:15:34 +00:00
Tom Lane
1332c1e144 Change GEQO optimizer to release memory after each gene 
is evaluated.  This bounds memory usage to something reasonable even
when many tables are being joined.
 1999-05-17 00:25:34 +00:00
Tom Lane
fecb2b0024 Minor code cleanup in optimizer. 1999-05-16 19:45:37 +00:00
Tom Lane
507a0a2ab0 Rip out QueryTreeList structure, root and branch. Querytree 
lists are now plain old garden-variety Lists, allocated with palloc,
rather than specialized expansible-array data allocated with malloc.
This substantially simplifies their handling and eliminates several
sources of memory leakage.
Several basic types of erroneous queries (syntax error, attempt to
insert a duplicate key into a unique index) now demonstrably leak
zero bytes per query.
 1999-05-13 07:29:22 +00:00
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
 1999-05-12 15:02:39 +00:00
Tom Lane
da5f1dd722 Revise union_planner and associated routines to clean up breakage 
from EXCEPT/HAVING patch.  Cases involving nontrivial GROUP BY expressions
now work again.  Also, the code is at least somewhat better documented...
 1999-05-03 00:38:44 +00:00
Tom Lane
605d84941d Clean up cost_sort some more: most callers were double-counting 
the cost of reading the source data.
 1999-05-01 19:47:42 +00:00
Tom Lane
4438b70b94 Repair some problems in planner's handling of HAVING clauses. 
This fixes a few of the problems Hiroshi Inoue complained of, but
I have not touched the rewrite-related issues.
 1999-04-19 01:43:12 +00:00
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
a564d2bf0f geqo now at 11 tables 1999-03-07 12:00:40 +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
Bruce Momjian
1ed5cbbfd8 Final optimizer cleanups. 1999-02-22 05:26:58 +00:00
Bruce Momjian
23c30246d7 pathkeys.c cleanup. 1999-02-21 01:55:03 +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
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
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
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
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
6de25f09b1 Optimizer cleanup. 1999-02-11 17:00:49 +00:00
Bruce Momjian
d244df95db More optimizer speedups. 1999-02-11 14:59:09 +00:00
Bruce Momjian
dbd80c97f4 Optimizer fix for samekeys() and cost fixes for longer optimizer keys. 1999-02-11 04:08:44 +00:00
Bruce Momjian
9dbb0efb0b Optmizer cleanup 1999-02-10 21:02:50 +00:00
Bruce Momjian
f859c81c18 Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things. 1999-02-10 03:52:54 +00:00
Bruce Momjian
318e593f03 Rename Temp to Noname for noname tables. 1999-02-09 17:03:14 +00:00
Bruce Momjian
a553760845 Optimizer cleanup. 1999-02-06 17:29:30 +00:00
Bruce Momjian
ce3afccf7f More optimizer cleanups. 1999-02-04 03:19:11 +00:00
Bruce Momjian
8d9237d485 Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README. 1999-02-03 20:15:53 +00:00
Bruce Momjian
8e958b8a38 Fix create_rule is->as. 1999-02-02 17:46:17 +00:00
Bruce Momjian
4390b0bfbe Add TEMP tables/indexes. Add COPY pfree(). Other cleanups. 1999-02-02 03:45:56 +00:00
Bruce Momjian
1401f63dd1 Agg/Aggreg cleanup and datetime.sql patch. 1999-01-25 18:02:28 +00:00
Thomas G. Lockhart
bedd04a551 Implement CASE expression. 1998-12-04 15:34:49 +00:00
Bruce Momjian
173c555948 Make functions static or ifdef NOT_USED. Prevent pg_version creation. 1998-10-08 18:30:52 +00:00
Bruce Momjian
fcecc5ca1e [Part #1: Type: text/plain, Encoding: 7bit, Size: 59] 
I will be cleaning this up more before the Oct 1 deadline.

David Hartwig.  AND/OR fix.
 1998-09-03 02:34:35 +00:00
Bruce Momjian
fa1a8d6a97 OK, folks, here is the pgindent output. 1998-09-01 04:40:42 +00:00
Bruce Momjian
af74855a60 Renaming cleanup, no pgindent yet. 1998-09-01 03:29:17 +00:00
Bruce Momjian
2d32d909b5 Cleanup optimizer function names and clarify code. 1998-08-10 02:26:40 +00:00
Bruce Momjian
a08dc16c47 New pgindent. 1998-08-09 04:59:10 +00:00
Bruce Momjian
d9be0ff432 MergeSort was sometimes called mergejoin and was confusing. Now 
it is now only mergejoin.
 1998-08-04 16:44:31 +00:00
Bruce Momjian
7702d7aa4b target list fixes. 1998-07-20 21:18:35 +00:00
Bruce Momjian
1d00134be4 makeTargetEntry cleanup. 1998-07-20 20:48:54 +00:00
Bruce Momjian
3dd2eabc53 Cleanup makeTargetEntry and remove internal.c. 1998-07-20 19:53:53 +00:00
Bruce Momjian
460b20a43f 1) Queries using the having clause on base tables should work well 
now. Here some tested features, (examples included in the patch):

1.1) Subselects in the having clause 1.2) Double nested subselects
1.3) Subselects used in the where clause and in the having clause
     simultaneously 1.4) Union Selects using having 1.5) Indexes
on the base relations are used correctly 1.6) Unallowed Queries
are prevented (e.g. qualifications in the
     having clause that belong to the where clause) 1.7) Insert
into as select

2) Queries using the having clause on view relations also work
   but there are some restrictions:

2.1) Create View as Select ... Having ...; using base tables in
the select 2.1.1) The Query rewrite system:

2.1.2) Why are only simple queries allowed against a view from 2.1)
? 2.2) Select ... from testview1, testview2, ... having...; 3) Bug
in ExecMergeJoin ??


Regards Stefan
 1998-07-19 05:49:26 +00:00
Bruce Momjian
584f9438ca Rename Rel to RelOptInfo. 1998-07-18 04:22:52 +00:00
Bruce Momjian
5529b783a8 Move HAVING function to proper file. 1998-04-15 15:29:57 +00:00
Bruce Momjian
a32450a585 pgindent run before 6.3 release, with Thomas' requested changes. 1998-02-26 04:46:47 +00:00
Vadim B. Mikheev
5d7923dd1c Subselects... 1998-02-13 03:46:56 +00:00
Bruce Momjian
7229513943 Fix prototypes so they don't look like function definitions. 1998-01-24 22:50:57 +00:00
Bruce Momjian
763ff8aef8 Remove Query->qry_aggs and qry_numaggs and replace with Query->hasAggs. 
Pass List* of Aggregs into executor, and create needed array there.
No longer need to double-processs Aggregs with second copy in Query.

Fix crash when doing:

	select sum(x+1) from test where 1 > 0;
 1998-01-15 19:00:16 +00:00
Bruce Momjian
a01b085c78 Cleanup of UNION ALL fix. Manual page updates. 1997-12-29 01:13:37 +00:00
Bruce Momjian
6231e161c9 Implementation of UNIONs. 1997-12-24 06:06:58 +00:00
Bruce Momjian
78a055a659 Remove some recursion in optimizer and clean up some code there. 1997-12-21 05:18:48 +00:00
Bruce Momjian
7fd4782504 Fix aggregates on inherited tables. 1997-12-20 07:59:44 +00:00
Bruce Momjian
6a45941f2f Remove Existential, and ifdef out generate_fjoin. Neither did anything. 1997-12-18 12:54:45 +00:00
Bruce Momjian
d3f0e87d17 Cost cleanup. 1997-12-18 12:21:02 +00:00
Bruce Momjian
598e86f3b3 Cleanup up include files. 1997-11-26 01:14:33 +00:00
Bruce Momjian
4a5b781d71 Break parser functions into smaller files, group together. 1997-11-25 22:07:18 +00:00
Bruce Momjian
3fa2bb316c Remove archive stuff. 1997-11-21 18:12:58 +00:00
Bruce Momjian
e9e1ff226f Remove all time travel stuff. Small parser cleanup. 1997-11-20 23:24:03 +00:00
Bruce Momjian
cf5a8723dd Increase default geqo parameter to 8. 1997-09-12 21:25:10 +00:00
Bruce Momjian
59f6a57e59 Used modified version of indent that understands over 100 typedefs. 1997-09-08 21:56:23 +00:00
Bruce Momjian
075cede748 Add typdefs to pgindent run. 1997-09-08 20:59:27 +00:00
Bruce Momjian
319dbfa736 Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting. 1997-09-08 02:41:22 +00:00
Bruce Momjian
1ccd423235 Massive commit to run PGINDENT on all *.c and *.h files. 1997-09-07 05:04:48 +00:00
Bruce Momjian
1d8bbfd2e7 Make functions static where possible, enclose unused functions in #ifdef NOT_USED. 1997-08-19 21:40:56 +00:00
Vadim B. Mikheev
9c0d64c21c #define GEQO_RELS 6 (not 7) 1997-06-03 03:15:50 +00:00
Vadim B. Mikheev
465047d604 #define GEQO_RELS 7 
moved from geqo.h to internal.h.
 1997-06-02 11:19:33 +00:00
Bruce Momjian
8bc7439ccf Enable GEQO for more than six tables, from Martin. 1997-06-01 02:56:00 +00:00
Vadim B. Mikheev
0a08f2b22d #define _CPU_PAGE_WEIGHT_: 0.065 --> 0.033 
#define _CPU_INDEX_PAGE_WEIGHT_: 0.033 --> 0.017
 1997-04-24 15:38:34 +00:00
Vadim B. Mikheev
75e2370cc8 Now we have #define _CPU_INDEX_PAGE_WEIGHT_ 0.033 (/* CPU-index-to-page cost 
weighting factor */) in addition to
#define _CPU_PAGE_WEIGHT_  0.065 (/* CPU-heap-to-page cost weighting factor
*/).
 1997-04-09 02:24:19 +00:00
Bruce Momjian
162c2a6e4c Remove _PAGE_SIZE_ as recommended by Darren King. 1997-03-02 01:34:50 +00:00
Marc G. Fournier
29138eeb3c Merge in GEQO Optimizer 
From: "Martin S. Utesch" <utesch@aut.tu-freiberg.de>
 1997-02-19 12:59:07 +00:00
Marc G. Fournier
1d0dd471fa Okay...this pretty much cleans out the include files. 
I'm able to get through a 'make' of the backend with no errors except
the occasional 'might not be initialized error', which is nothing major,
just annoying.

Have a few patches from D'Arcy to incorporate, but am waiting until I can
get a clean compile first, which I'm hoping to have before bed, or sometime
tomorrow.
 1996-11-06 10:31:02 +00:00
Marc G. Fournier
be9197320a One by one, file by file 1996-11-06 09:27:29 +00:00
Marc G. Fournier
3f07f6bab2 Another 1996-11-06 09:24:57 +00:00
Marc G. Fournier
92ec7b5812 And another 1996-11-06 09:19:16 +00:00
Marc G. Fournier
8b6b4d063a another one bites the dust 1996-11-06 09:17:31 +00:00
Marc G. Fournier
87b07a3974 Further include file cleanups 1996-11-06 07:44:18 +00:00
Marc G. Fournier
99412aef23 remove: 
#include "postgres.h"
	#include "c.h"
 1996-10-31 09:51:30 +00:00
Marc G. Fournier
870be9fa8e Clean up th ecompile process by centralizing the include files 
- code compile tested, but due to a yet unresolved problem with
          parse.h's creation, compile not completed...
 1996-08-28 07:27:54 +00:00