firebird/firebird-mirror
firebird/firebird-mirror
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97 Commits

Author SHA1 Message Date
Dmitry Yemanov
0493422c9f
Better processing and optimization if IN <list> predicates (#7707) 
* WIP

* Original (circa 2022) implementation of the IN LIST optimization, with some post-fixes and minor adjustments

* Make it possible to optimize IN <list> for middle segments in compund indices

* Avoid modifying the retrieval structure at runtime, it may be shared among concurrent requests

* Simplify the code a little. Better cost calculation. Support both root-based and sibling-based list scans inside the same plan node.

* Removed the unneeded const casts and other changed as suggested by Adriano
 2023-09-04 09:13:10 +03:00
Adriano dos Santos Fernandes
670d3513ca Improvement #7688 - Profiler should not miss query's top-level access paths nodes.
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2023-07-29 23:51:15 -03:00
Adriano dos Santos Fernandes
29b1d829b4 Rename methods related to cursor/recsrc ids, removing "profile" from them. 2023-07-26 08:02:11 -03:00
Adriano dos Santos Fernandes
e05d8f7d15 Fix #7553 - Firebird 5 profiler error with subselects.
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2023-04-26 20:03:14 -03:00
Dmitry Yemanov
1c2470c4cc Adjustments as per Adriano's comments 2023-01-04 12:08:11 +03:00
Dmitry Yemanov
36d011f731 Prettier plan output: distinguish between main queries and sub-queries, show cursor names/options, report line numbers 2023-01-02 13:40:29 +03:00
Adriano dos Santos Fernandes
5cc8a8f7fd
SKIP LOCKED clause for SELECT WITH LOCK, UPDATE and DELETE (#7350) 
* SKIP LOCKED clause for SELECT WITH LOCK, UPDATE and DELETE.

* Misc.

* Change as Dmitry suggested and fix Windows build.

* Change order of LOCK to between SKIP and FIRST.

* Avoid refetch with READ COMMITTED transaction as suggested by Dmitry.

* Revert changes to TRA_wait and use tra_probe in vio/prepare_update
when skipping locked.

* Add to CHANGELOG.
 2022-10-28 07:09:01 -03:00
Adriano dos Santos Fernandes
98f678d4ee Rename class jrd_req to Request. 2022-02-13 10:51:30 -03:00
Dmitry Yemanov
19f2bfdd01 Refactored the optimizer. Better debug logging. 2022-02-09 10:20:16 +03:00
Dmitry Yemanov
ed0eb94ae9 Restore simpler signature for node methods 2021-10-12 20:17:17 +03:00
Adriano dos Santos Fernandes
24581bb7fe Fix #6875 - Significant performance regression of SIMILAR TO and SUBSTRING(SIMILAR) 
when pattern is taken from variable (rather than directly specified).
 2021-07-02 11:22:59 -03:00
Adriano dos Santos Fernandes
8781146319 Fix #6854 - Crash occurs when use SIMILAR TO and compare string with pattern 
that contains non-ascii character with suppressed exception handling
(or "Invalid SIMILAR TO pattern" raises otherwise).
 2021-06-14 15:08:34 -03:00
Dmitry Yemanov
9f86d1ad4e Ensure the cursor is closed after error 2020-11-04 09:35:21 +03:00
Dmitry Yemanov
d50aa0918d Refactored PSQL savepoint envelopes. Made the savepoint undo logic consistent across the codebase. Added assertions to prevent releasing the savepoint that must be undone. 2020-09-25 11:15:31 +03:00
Dmitry Yemanov
82b2b2188e Refactored the code backing DBKEY concatenation for views. Re-attempted to fix CORE-4985: Non-privileged user can implicitly count records in a restricted table. 2020-06-15 19:25:35 +03:00
Adriano dos Santos Fernandes
1951362a73 Improve allocation of request impure space, specially statements, to not waste alignment space (CORE-6330). 2020-06-11 14:28:11 -03:00
Adriano dos Santos Fernandes
734bca7a4f Improve statement memory consumption removing the type from the nodes, adding as virtual method to the vtable. 2020-06-07 21:58:31 -03:00
Adriano dos Santos Fernandes
7806ad34df Use std::initializer_list in RegisterNode to avoid multiple variable registration for each node. 2020-06-05 13:57:46 -03:00
Adriano dos Santos Fernandes
28e18749ff WIP: Reimplementation of SIMILAR TO and SUBSTRING...SIMILAR using Google's re2 library. 
This should fix:
CORE-4874
CORE-5664
CORE-3858
CORE-6088
CORE-3773
CORE-5931
CORE-6088
CORE-4893
 2019-08-10 22:39:19 -03:00
Adriano dos Santos Fernandes
45d5e3aa7a
Refactor public include files (#205) 
Refactor include files.
 2019-06-03 11:45:00 -03:00
Dmitry Yemanov
4534a64791 Frontported and refactored PR #202 (CORE-5074) 2019-05-23 18:55:06 +03:00
Adriano dos Santos Fernandes
e438bdeb60 Fixed CORE-6033 - SUBSTRING(CURRENT_TIMESTAMP) does not work. 2019-03-22 12:45:06 -03:00
Dmitry Yemanov
8bb1ea9522 This workaround should fix MSVC12 build issues (ambiguous call to overloaded function for std::function and SomeNode* overloads) 2018-11-28 13:52:18 +03:00
Adriano dos Santos Fernandes
4ce50c0503 Fix CORE-5395 - Invalid data type for negation (minus operator). 2018-11-25 10:45:52 -02:00
Adriano dos Santos Fernandes
c5f8e6ca46 Avoid calls to JRD_get_thread_data. 2017-11-26 18:58:25 -02:00
Adriano dos Santos Fernandes
63a03dfc8f Remove pool reference and children lists in each node. 
Children lists will be created and destroyed on demand.
 2017-11-26 18:58:25 -02:00
Adriano dos Santos Fernandes
d8fea3ec91 Avoid method calls in NULL objects. 
It's undefined behavior even with non-virtual methods not accessing *this.
 2017-06-09 17:10:46 +00:00
AlexPeshkoff
028248b194 Merged changes from master branch 2017-02-16 17:56:23 +03:00
Dmitry Yemanov
4f7843d5b5 Bugfix CORE-5414: Error restoring on FB 3.0 from FB 2.5: bugcheck 221 (cannot remap) 2017-01-05 21:32:44 +03:00
AlexPeshkoff
5aede150e3 Decimal floating point numbers - first draft 2016-11-11 17:59:55 +03:00
Adriano dos Santos Fernandes
8a4b7e3b79 Fixed CORE-5367 - Regression: (boolean) parameters as search condition no longer allowed. 2016-10-04 11:50:43 -03:00
Dmitry Yemanov
118a78e6e6 Bugfix CORE-5236: IN/ANY/ALL predicates may cause sub-optimal (late 
filtering) execution of joins.
 2016-07-09 01:14:50 +03:00
Adriano dos Santos Fernandes
d7eb6fe4d0 Fixed CORE-5167 - Allow implicit conversion between boolean and string. 2016-04-04 14:49:44 -03:00
asfernandes
152b6bdc01 Fixed CORE-5130 - Compiler issues message about "invalid request BLR" when attempt to compile wrong DDL of view with both subquery and "WITH CHECK OPTION" in its DDL. 2016-03-09 18:45:38 +00:00
hvlad
2dc879afca This should fix known issues with MERGE and stable cursor (see CORE-3362). 
Thanks to Dmitry for idea
 2016-02-25 09:20:01 +00:00
alexpeshkoff
139331c7e3 Enhanced memory leaks search - changed FB_NEW to FB_NEW_POOL, 
plain new to FB_NEW, making allocated with it blocks tagged with file/line.
Make related code slightly better readable.
 2015-10-12 14:26:00 +00:00
dimitr
7857160480 Misc. 2015-10-08 13:24:21 +00:00
asfernandes
ce80938834 Fixed possible similar problems to CORE-4497. 2015-09-01 15:55:10 +00:00
dimitr
fe24642bc2 Fixed invariants handling in independent subqueries (seems to be related to CORE-4497). 2015-08-31 15:11:06 +00:00
asfernandes
f9bc6e1736 Add code to print the parser/executable tree to XML for debugging purposes. 2015-06-05 18:26:36 +00:00
asfernandes
ba03a8c71e 1) Improvement CORE-4791 - Make INSERTING/UPDATING/DELETING reserved words to fix ambiguity with boolean expresions. 
2) Fixed CORE-4735 -  Expression 'where bool_field IS true | false' should also use index as 'where bool_field = true | false' (if such index exists).
 2015-05-15 16:10:39 +00:00
skidder
7c743fc291 Fix build warnings 2014-07-17 18:48:46 +00:00
robocop
cadd8accc4 Implemented STEP for generators/sequences and took the opportunity to make the blrOp param const. Please rebuild the databases. 2014-04-09 02:28:38 +00:00
asfernandes
30b0b5227b Misc. 2014-03-31 02:04:26 +00:00
hvlad
6ca0cbb78a Additional patch for CORE-3362 : Cursors should ignore changes made by the same statement: 
- fixed error when "NOT IN" expression is turned into (better optimized) equivalent expression: 
  new RseBoolNode's lost parentForNode member (required later to [not]set stable cursor savepoint)
- replaced pointer to outer ForNode (parentForNode) by boolean flag (ownSavepoint) - it simplifies cloning of nodes
 2014-03-19 22:31:50 +00:00
robocop
ae8f6d6b8f Misc. 2014-03-03 04:37:29 +00:00
robocop
10a253d613 Make comparisons return plain int (PVS-Studio). 2014-02-25 06:20:09 +00:00
asfernandes
3a87224281 Warnings and make Linux debug build compile. 2014-02-18 01:49:07 +00:00
dimitr
15113ae2dd Resolved CORE-1482: Make optimizer to consider ORDER BY optimization when making decision about join order. 
Also, improved (hopefully) cost calculation for navigational retrievals.
 2014-01-05 19:40:07 +00:00
dimitr
d11d3be507 Sync'ed with v2.5 and fixed wrong stream comparison checks. 2013-07-07 16:11:28 +00:00