dimitr
c7853fa9e1
Fixed CORE-1295: Bad optimization of queries with DB_KEY.
2010-02-19 20:25:56 +00:00
asfernandes
af249fe61a
Misc
2010-02-19 01:40:05 +00:00
asfernandes
4ea773eb33
Rework in the visitor classes to remove ugly reinterpret_cast of PMFs. Hope that solve the warning reported by Claudio too.
2010-02-17 02:04:15 +00:00
dimitr
3aaa3d1e87
Fixed CORE-1089: Wrong ordering with views, distinct, left join and order by
...
and CORE-2871: Outer ORDER BY clause has no effect.
2010-02-16 14:45:23 +00:00
robocop
835750a54c
Misc.
2010-02-16 08:53:31 +00:00
asfernandes
c737d6a807
Create ExprNode class hierarchy.
...
Convert CONCATENATE and aggregate functions to it.
Fix some bugs:
- select sum(n) over (order by n2), sum(n) over (), n, n2 from x1;
- select (select 1 from x1 b where list(1, a.n) = 1) from x1 a;
2010-02-13 20:29:29 +00:00
dimitr
ce33f56150
Fixed the logic I have broken recently.
2010-02-03 08:34:34 +00:00
dimitr
71e4f9a2ff
Fixed the first part of CORE-2832: Optimizer fails applying stream-local predicates before merging.
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This part is related to the merge/hash join algorithms.
2010-02-03 05:42:59 +00:00
robocop
1d87d749f0
Misc.
2010-01-26 08:20:27 +00:00
dimitr
ea4077c888
1) Extended hash joins to handle more than two streams at once.
...
2) Allowed the hash table size to be configurable at runtime.
2010-01-22 07:17:35 +00:00
dimitr
d35f6e316b
1) Simplify the explicit plan handling between the parser and the engine. It makes no sense to pass the join type as it's ignored internally.
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2) Support hash joins in the plan output and in the parser. For the latter, it's just the syntax sugar, same as loop vs merge join (see above).
2010-01-19 09:25:29 +00:00
dimitr
e2aab75891
Fixed the optimizer in regard to the partitioned window functions.
2010-01-19 07:52:38 +00:00
asfernandes
7fbee2c76b
Feature OVER (PARTITION BY ...) clause for window functions
2010-01-18 21:37:47 +00:00
asfernandes
d26457bc6d
Remove a var. shadow
2010-01-18 13:38:36 +00:00
dimitr
e9a3f9e213
Misc.
2010-01-18 13:18:20 +00:00
dimitr
df53be29bf
Misc.
2010-01-18 11:39:34 +00:00
dimitr
4862999990
Cleanup. Hopefully valid this time ;-)
2010-01-15 11:36:42 +00:00
asfernandes
fc948e44a6
I believe the expression may produce wrong results depending on compiler optimizations
2010-01-14 16:45:13 +00:00
dimitr
2f28556820
Fixed CORE-1274 (Wrong results when PLAN MERGE is chosen and datatypes of the equality predicate arguments are different) and CORE-1752 (Results of a join with different collations depend on the execution plan).
2010-01-14 12:25:13 +00:00
dimitr
dfa7f00cf7
Trivial support for hash joins in the optimizer.
...
Currently they completely replace the merge joins (for debugging purposes).
2010-01-14 11:41:36 +00:00
dimitr
ef05207a8d
Misc.
2010-01-14 07:13:38 +00:00
dimitr
27ff3bf1df
Misc.
2010-01-13 11:46:54 +00:00
dimitr
7d7aef4228
Cleanup and refactoring in the optimizer (mostly related to rivers and sort/merge).
2010-01-13 11:46:16 +00:00
asfernandes
5277b99bcf
Misc
2010-01-12 14:21:30 +00:00
dimitr
6256cebc83
Misc.
2010-01-12 09:53:08 +00:00
dimitr
5f39df8d27
Allowed merge joins for IS NOT DISTINCT equalities.
2010-01-11 17:37:49 +00:00
dimitr
59ee638622
Fixed the sorting.
2010-01-06 14:16:21 +00:00
robocop
eb571b41eb
Warning.
2009-12-16 09:31:36 +00:00
asfernandes
b137cdfd80
Misc
2009-12-14 23:55:56 +00:00
dimitr
793bfb91dd
Simplification.
2009-12-14 16:01:06 +00:00
robocop
00c5d74904
Cleanup.
2009-12-13 13:49:43 +00:00
dimitr
bda5c179d1
Cleanup the unneeded routines.
2009-12-13 11:50:27 +00:00
robocop
546bf76a24
Unused functions, unused parameters, unused vars.
2009-12-13 11:07:05 +00:00
robocop
dae574f7f1
Misc, style and unused vars.
2009-12-13 10:41:53 +00:00
asfernandes
7c38226dfc
Misc
2009-12-12 21:02:01 +00:00
asfernandes
7b8ea84561
Sort maps refactor
2009-12-12 20:36:56 +00:00
asfernandes
008e1bdb59
Remove usage of plain array with count in [0] in the new classes
2009-12-12 19:00:43 +00:00
dimitr
8cbaa89e7e
Fixed the merge join algorithm. Thanks to Adriano.
2009-12-10 15:26:46 +00:00
dimitr
d09fba5ebd
Fixed (hopefully) CORE-2798: Incomplete plan output (lack of view names) when selecting from views containing procedures inside.
2009-12-10 14:47:52 +00:00
dimitr
4052e12065
Corrected the logic. Thanks to Adriano.
2009-12-10 10:13:22 +00:00
asfernandes
925bcc9cf6
Misc / warnings
2009-12-10 00:02:01 +00:00
dimitr
11495a55fb
Refactored the whole RSB stuff into classes. They're inside the /recsrc sub-directory now.
...
Fixed the layering for WITH LOCK and (partially) ANY/ALL predicates.
Cleaned up the outdated code that never worked (mapping DISTINCT to an index, some VMS remainings).
Wiped out a lot of the pre-ODS11 optimizer logic. Some minor adjustments there.
Re-implemented the full outer join from scratch. This resolves CORE-2678 (full outer join cannot use available indices).
Resolved CORE-2796: DB_KEY is always zero for external tables.
Implemented the core part of the scrollable PSQL cursors. Implementation is still incomplete, but ready for testing.
Some other changes I don't recall at the moment ;-)
WARNING! The engine may be unstable. Please email me about any issues found.
2009-12-09 18:45:44 +00:00
asfernandes
7e04ec0ab5
Clean it per Claudio request
2009-11-27 14:39:48 +00:00
asfernandes
a3dd1d0482
Misc
2009-11-26 00:20:59 +00:00
robocop
579a456329
Style.
2009-11-25 08:38:52 +00:00
robocop
d6ceb87638
Cleanup.
2009-11-25 04:52:54 +00:00
robocop
75df0fc37d
Comments.
2009-11-25 03:58:43 +00:00
robocop
804ad6048a
Restrict us to ODS11 and ODS12 until the dust settles down.
2009-11-24 11:42:56 +00:00
robocop
1386adcf90
Style.
2009-11-16 08:06:31 +00:00
asfernandes
7e0f76e708
Misc
2009-11-02 14:42:27 +00:00
