49ed4dd779
Further work on planning of indexscans. Cleaned up interfaces
...
to index_selectivity so that it can be handed an indexqual clause list
rather than a bunch of assorted derivative data.
1999-07-25 23:07:26 +00:00
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.)
1999-07-24 23:21:14 +00:00
3406901a29
Move some system includes into c.h, and remove duplicates.
1999-07-17 20:18:55 +00:00
773088809d
More cleanup
1999-07-16 17:07:40 +00:00
a9591ce66a
Change #include's to use <> and "" as appropriate.
1999-07-15 23:04:24 +00:00
40a89e08b2
Cleanups.
1999-07-15 20:32:30 +00:00
4b2c2850bf
Clean up #include in /include directory. Add scripts for checking includes.
1999-07-15 15:21:54 +00:00
0cf1b79528
Cleanup of /include #include's, for 6.6 only.
1999-07-14 01:20:30 +00:00
9f7ac20e57
Cleanup of min tuple size.
1999-07-07 09:27:28 +00:00
fd8e580bb7
Clean up problems with sublinks + grouping in planner. Not
...
sure if they are all fixed, because rewriter is now the stumbling block,
but at least some cases work that did not work before.
1999-06-21 01:20:57 +00:00
86f36719db
Create a generic expression-tree-walker subroutine, which
...
will gradually replace all of the boilerplate tree-walk-recursion code that
currently exists in O(N) slightly different forms in N subroutines.
I've had it with adding missing cases to these subroutines...
1999-06-19 03:41:45 +00:00
b4210ae0f0
Fix problems with grouping/aggregation in queries that use
...
inheritance ... basically it was completely busted :-(
1999-06-06 17:38:11 +00:00
278bbf4572
Make functions static or NOT_USED as appropriate.
1999-05-26 12:57:23 +00:00
fcff1cdf4e
Another pgindent run. Sorry folks.
1999-05-25 22:43:53 +00:00
07842084fe
pgindent run over code.
1999-05-25 16:15:34 +00:00
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
fecb2b0024
Minor code cleanup in optimizer.
1999-05-16 19:45:37 +00:00
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
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
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
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
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
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
a564d2bf0f
geqo now at 11 tables
1999-03-07 12:00:40 +00:00
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
1ed5cbbfd8
Final optimizer cleanups.
1999-02-22 05:26:58 +00:00
23c30246d7
pathkeys.c cleanup.
1999-02-21 01:55:03 +00:00
612b8434e4
optimizer cleanup
1999-02-19 05:18:06 +00:00
8ab72a38df
optimizer cleanup
1999-02-19 02:05:20 +00:00
65ccd1039a
Enable bushy plans by default.
1999-02-18 05:26:34 +00:00
e78662d879
optimizer cleanup
1999-02-18 04:55:54 +00:00
d977ff7b52
more optimizer cleanups
1999-02-18 04:45:36 +00:00
31cce21fb0
Fix bushy plans. Cleanup.
1999-02-18 00:49:48 +00:00
c82ca4c158
Re-enable bushy plans. Vadim want them.
1999-02-16 00:41:03 +00:00
e6bf7b4d93
rename
1999-02-15 05:56:07 +00:00
56bb23a8fe
optimizer rename
1999-02-15 05:50:02 +00:00
50034a852d
optimizer rename
1999-02-15 05:28:10 +00:00
82682ff31f
optimizer rename
1999-02-15 03:59:28 +00:00
ba2883b264
Remove duplicate geqo functions, and more optimizer cleanup
1999-02-15 03:22:37 +00:00
61aa825876
Optimizer rename.
1999-02-14 04:57:02 +00:00
6724a50787
Change my-function-name-- to my_function_name, and optimizer renames.
1999-02-13 23:22:53 +00:00
ad4b27ac3f
Optimizer cleanup.
1999-02-12 17:25:05 +00:00
c0d17c7aee
JoinPath -> NestPath for nested loop.
1999-02-12 06:43:53 +00:00
3fdb9bb9c7
Fix optimizer and make faster.
1999-02-12 05:57:08 +00:00
6de25f09b1
Optimizer cleanup.
1999-02-11 17:00:49 +00:00
d244df95db
More optimizer speedups.
1999-02-11 14:59:09 +00:00
dbd80c97f4
Optimizer fix for samekeys() and cost fixes for longer optimizer keys.
1999-02-11 04:08:44 +00:00
9dbb0efb0b
Optmizer cleanup
1999-02-10 21:02:50 +00:00
f859c81c18
Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things.
1999-02-10 03:52:54 +00:00
318e593f03
Rename Temp to Noname for noname tables.
1999-02-09 17:03:14 +00:00
a553760845
Optimizer cleanup.
1999-02-06 17:29:30 +00:00
ce3afccf7f
More optimizer cleanups.
1999-02-04 03:19:11 +00:00
8d9237d485
Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README.
1999-02-03 20:15:53 +00:00
8e958b8a38
Fix create_rule is->as.
1999-02-02 17:46:17 +00:00
4390b0bfbe
Add TEMP tables/indexes. Add COPY pfree(). Other cleanups.
1999-02-02 03:45:56 +00:00
1401f63dd1
Agg/Aggreg cleanup and datetime.sql patch.
1999-01-25 18:02:28 +00:00
bedd04a551
Implement CASE expression.
1998-12-04 15:34:49 +00:00
173c555948
Make functions static or ifdef NOT_USED. Prevent pg_version creation.
1998-10-08 18:30:52 +00:00
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
fa1a8d6a97
OK, folks, here is the pgindent output.
1998-09-01 04:40:42 +00:00
af74855a60
Renaming cleanup, no pgindent yet.
1998-09-01 03:29:17 +00:00
2d32d909b5
Cleanup optimizer function names and clarify code.
1998-08-10 02:26:40 +00:00
a08dc16c47
New pgindent.
1998-08-09 04:59:10 +00:00
d9be0ff432
MergeSort was sometimes called mergejoin and was confusing. Now
...
it is now only mergejoin.
1998-08-04 16:44:31 +00:00
7702d7aa4b
target list fixes.
1998-07-20 21:18:35 +00:00
1d00134be4
makeTargetEntry cleanup.
1998-07-20 20:48:54 +00:00
3dd2eabc53
Cleanup makeTargetEntry and remove internal.c.
1998-07-20 19:53:53 +00:00
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
584f9438ca
Rename Rel to RelOptInfo.
1998-07-18 04:22:52 +00:00
5529b783a8
Move HAVING function to proper file.
1998-04-15 15:29:57 +00:00
a32450a585
pgindent run before 6.3 release, with Thomas' requested changes.
1998-02-26 04:46:47 +00:00
5d7923dd1c
Subselects...
1998-02-13 03:46:56 +00:00
7229513943
Fix prototypes so they don't look like function definitions.
1998-01-24 22:50:57 +00:00
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
a01b085c78
Cleanup of UNION ALL fix. Manual page updates.
1997-12-29 01:13:37 +00:00
6231e161c9
Implementation of UNIONs.
1997-12-24 06:06:58 +00:00
78a055a659
Remove some recursion in optimizer and clean up some code there.
1997-12-21 05:18:48 +00:00
7fd4782504
Fix aggregates on inherited tables.
1997-12-20 07:59:44 +00:00
6a45941f2f
Remove Existential, and ifdef out generate_fjoin. Neither did anything.
1997-12-18 12:54:45 +00:00
d3f0e87d17
Cost cleanup.
1997-12-18 12:21:02 +00:00
598e86f3b3
Cleanup up include files.
1997-11-26 01:14:33 +00:00
4a5b781d71
Break parser functions into smaller files, group together.
1997-11-25 22:07:18 +00:00
3fa2bb316c
Remove archive stuff.
1997-11-21 18:12:58 +00:00
e9e1ff226f
Remove all time travel stuff. Small parser cleanup.
1997-11-20 23:24:03 +00:00
cf5a8723dd
Increase default geqo parameter to 8.
1997-09-12 21:25:10 +00:00
59f6a57e59
Used modified version of indent that understands over 100 typedefs.
1997-09-08 21:56:23 +00:00
075cede748
Add typdefs to pgindent run.
1997-09-08 20:59:27 +00:00
319dbfa736
Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting.
1997-09-08 02:41:22 +00:00
1ccd423235
Massive commit to run PGINDENT on all *.c and *.h files.
1997-09-07 05:04:48 +00:00
1d8bbfd2e7
Make functions static where possible, enclose unused functions in #ifdef NOT_USED.
1997-08-19 21:40:56 +00:00
9c0d64c21c
#define GEQO_RELS 6 (not 7)
1997-06-03 03:15:50 +00:00
465047d604
#define GEQO_RELS 7
...
moved from geqo.h to internal.h.
1997-06-02 11:19:33 +00:00
8bc7439ccf
Enable GEQO for more than six tables, from Martin.
1997-06-01 02:56:00 +00:00
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
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
162c2a6e4c
Remove _PAGE_SIZE_ as recommended by Darren King.
1997-03-02 01:34:50 +00:00
29138eeb3c
Merge in GEQO Optimizer
...
From: "Martin S. Utesch" <utesch@aut.tu-freiberg.de>
1997-02-19 12:59:07 +00:00
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
be9197320a
One by one, file by file
1996-11-06 09:27:29 +00:00
3f07f6bab2
Another
1996-11-06 09:24:57 +00:00
92ec7b5812
And another
1996-11-06 09:19:16 +00:00
8b6b4d063a
another one bites the dust
1996-11-06 09:17:31 +00:00
87b07a3974
Further include file cleanups
1996-11-06 07:44:18 +00:00
99412aef23
remove:
...
#include "postgres.h"
#include "c.h"
1996-10-31 09:51:30 +00:00
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
Tom Lane
Bruce Momjian
Jan Wieck
Thomas G. Lockhart
Vadim B. Mikheev
Marc G. Fournier