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74055f7f0e
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statistics, executor: fix new collation for analyze version 2 (#25311)
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2021-06-17 01:32:37 +08:00 |
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11716e7f4a
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*: use full sampling as default analyze (#25132)
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2021-06-06 00:34:27 +08:00 |
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32cf14bd7d
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statistics: relax the check of the OutOfRange (#24958)
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2021-06-02 22:16:25 +08:00 |
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f3557bb591
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planner, executor: supports select statement with AS OF (#24613)
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2021-05-27 21:11:35 +08:00 |
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9b5d92ef24
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statistics: fix the unexpected estimation error on full sampling (#24623)
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2021-05-26 18:47:34 +08:00 |
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80a281350d
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statistics: fix err check (#23001)
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2021-04-23 12:39:54 +08:00 |
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e059055d0e
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statistics: check step overflow when converting a range to points for estimation (#23890)
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2021-04-14 21:57:51 +08:00 |
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aee5819a20
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*: change @@tidb_enable_clustered_index to ON/OFF/INT_ONLY (#23529)
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2021-03-26 15:59:24 +08:00 |
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411dba25b1
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*: deprecate alter-primary-key configuration (#23270)
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2021-03-18 15:17:36 +08:00 |
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27db39b480
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*: use CLUSTERED and NONCLUSTERED to control primary key type (#22409)
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2021-02-05 20:41:41 +08:00 |
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05d995d73d
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statistics: add more tests about ver2-stats (#22457)
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2021-01-26 20:59:18 +08:00 |
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8d2ab4ef7a
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statistics: fix inaccurate row count estimation caused by cross validation using invalid column stats (#22479)
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2021-01-22 17:42:37 +08:00 |
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27a9b3e8f6
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statistics: fix stack overflow when use DNF expr immediately after add column (#22169)
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2021-01-06 12:08:10 +08:00 |
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27071f14d7
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session/bootstrap: disable clustered index by default (#21777)
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2020-12-25 15:44:07 +08:00 |
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5acff8de7a
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*: Revert "#19008" and "#18788" (#21599)
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2020-12-14 15:06:35 +08:00 |
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f41880a4d0
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statistics: improve row count estimation of multi-column equal conditions by cross validation (#20264)
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2020-10-27 20:10:27 +08:00 |
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cd16de894b
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*: introduce LRUCache with limited memory for statistics (#18788)
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2020-10-15 17:36:21 +08:00 |
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6f0aa2a96f
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util/ranger: fix infinite recursion when using _tidb_rowid in DNF cond (#19993)
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2020-09-17 10:57:38 +08:00 |
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438945d294
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*: enable clustered index by default (#19582)
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2020-08-31 16:54:51 +08:00 |
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b78f4896fe
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statistics, util/ranger: improve selectivity calculation for DNF filters (#18741)
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2020-08-27 15:40:12 +08:00 |
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aeee1524e4
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planner: fix the inappropriate heuristic rule to estimate the EQ selectivity when out of range (#18543)
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2020-08-05 14:11:06 +08:00 |
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ceec9d9c63
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*: fix the estimation error on normal column when collation enabled (#18104)
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2020-07-01 17:11:51 +08:00 |
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ac30f5322e
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mockstore: introducing embedded unistore (#17156)
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2020-05-18 17:28:44 +08:00 |
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cc24101d97
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statistics: fix repetitive selectivity accounting and stabilify the result (#15536)
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2020-04-03 15:50:09 +08:00 |
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2c6f4468a0
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statistics: fix row count estimation of unique composite index (#14076)
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2019-12-16 19:05:13 +08:00 |
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7b09a11f17
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planner,stats: don't re-calculate the index's ranges (#12856)
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2019-12-04 17:19:48 +08:00 |
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e979cff6bb
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planner: add column mapping in explain result (#13640)
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2019-11-27 16:39:19 +08:00 |
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5069939d74
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stats: specially handle unqiue key when estimate (#13354)
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2019-11-11 17:52:30 +08:00 |
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f9be8ebf85
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*: make log_level working for gotest (#13258)
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2019-11-08 14:44:39 +08:00 |
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36f0f37b40
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expression, planner: remove some fields from `expression.Colum… (#12573)
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2019-10-29 15:48:26 +08:00 |
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7ffa4500e6
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planner: support a hint to read from tiflash in planner (#12479)
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2019-10-11 16:36:35 +08:00 |
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e2b1f7eff8
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expression: change the String() method of expression.Column (#12089)
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2019-09-16 14:30:22 +08:00 |
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fe038642e5
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*: refactor cost model formulas and constants (#10581)
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2019-08-07 17:44:09 +08:00 |
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abbca5375e
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*: add trace support for subquery (#11182)
Test pass, auto merge by Bot
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2019-07-24 19:03:47 +08:00 |
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0d563f1e2d
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stats: fix unstable test (#10953)
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2019-06-27 13:51:16 +08:00 |
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3f4f3d0bd9
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stats: improve code coverage (#10606)
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2019-06-12 13:34:41 +08:00 |
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e5f734e54c
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*: move the Handle of stats to single package. (#10149)
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2019-04-17 13:42:34 +08:00 |
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2e14068ee1
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*: improve NULL count estimation for single column index (#9474)
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2019-03-30 19:22:30 +08:00 |
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560e8cfe57
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*: sleep 0 when retry whole transaction (#9454)
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2019-03-02 13:16:28 +08:00 |
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bc0e70dc5c
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planner/core: implement skyline pruning (#9337)
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2019-02-19 11:19:30 +08:00 |
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82d2726300
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planner, statistics: build new histogram using range information (#7921)
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2019-01-14 20:33:36 +08:00 |
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98c72c6a8e
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stats: optimize unit test execution time (#8597)
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2018-12-06 17:30:20 +08:00 |
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e195df2e5d
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stats: fix selectivity estimation for primary key (#8134)
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2018-11-01 20:38:08 +08:00 |
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89dda9d9a8
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*: move parser to a separate repository (#8036)
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2018-10-25 11:12:10 +08:00 |
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d65ce8655c
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stats: fix estimation for out of range point queries (#8015)
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2018-10-24 16:20:22 +08:00 |
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dcf3816c09
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stats: fix panic caused by empty histogram (#7912)
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2018-10-16 18:58:37 +08:00 |
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d5d8ba09a3
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stats: fix combined index low-bound check (#7814)
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2018-10-08 14:30:43 +08:00 |
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e79bd946ed
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*: change package name from plan to planner (#7760)
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2018-09-25 11:16:39 +08:00 |
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87c54b2610
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plan, statistics: maintain HistColl in DataSource's StatsInfo (#7385)
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2018-08-31 01:14:43 +08:00 |
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00839ceeec
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stats: support loading partition stats (#7305)
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2018-08-09 20:00:03 +08:00 |
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