3cb091ba18
statistics: change the upper bound of the out-of-range estimation to modify count | tidb-test=pr/2012 ( #39011 )
...
close pingcap/tidb#39008
2023-01-10 15:26:23 +08:00
6af4e4b160
statistics: fix merge global stats panic if the partition hasn't been analyzed before ( #39123 )
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close pingcap/tidb#39121
2022-11-15 18:27:55 +08:00
22b85b9b3e
statistics, planner: make the content in HistColl.ColID2IdxIDs stable ( #38458 )
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close pingcap/tidb#38457
2022-10-18 17:57:55 +08:00
7d0318cbd3
planner, statistics: refine stats loaded status and when to use pseudo stats ( #37444 )
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close pingcap/tidb#37485
2022-09-01 20:56:24 +08:00
6e582640d7
*: upgrade glangci-linter ( #37413 )
2022-09-01 12:14:24 +08:00
d435267600
statistics: track used stats status during query ( #37101 )
...
ref pingcap/tidb#36481
2022-08-25 12:14:21 +08:00
96165aae7e
statistics: stablize (*Table).GetColRowCount() ( #37081 )
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close pingcap/tidb#37080
2022-08-13 00:58:48 +08:00
c63a8d83a6
statistics: support extend show histograms ( #36509 )
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close pingcap/tidb#36481
2022-08-10 11:58:48 +08:00
212d62ee41
statistics: support tracking histogram ( #36170 )
...
ref pingcap/tidb#34052
2022-07-28 11:11:11 +08:00
34628f0f1a
*: Spelling, change ture to true ( #36520 )
...
closes pingcap/tidb#36519
2022-07-27 14:35:11 +08:00
f0717dfe07
statistics, sessionctx: introduce topn assisted cardinality estimation for string matching functions ( #36210 )
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close pingcap/tidb#36209
2022-07-20 21:55:09 +08:00
da1b82aae7
statistics: support tracking topn in statsCache ( #35510 )
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ref pingcap/tidb#34052
2022-07-13 11:57:06 +08:00
55aea2787d
*: use pdqsort to improve sort performance ( #34404 )
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close pingcap/tidb#34250
2022-07-06 13:41:02 +08:00
aec4349cac
statistics: let index support LoadNeededHistograms ( #35775 )
...
ref pingcap/tidb#35764
2022-07-04 14:03:00 +08:00
96526518b4
statistics: support tracking column cmsketch ( #35135 )
...
ref pingcap/tidb#34052
2022-06-17 17:20:35 +08:00
b24ef9a9a7
*: fix panic when mergeGlobalStats for newly-added index or column ( #35066 )
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close pingcap/tidb#35056
2022-05-31 16:10:27 +08:00
e0c0c737a2
*: add metrics for stats healthy ( #34636 )
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close pingcap/tidb#34691
2022-05-16 21:18:38 +08:00
0f0a2ca774
statistics: add lru cache implement for statsCacheInner ( #34323 )
...
ref pingcap/tidb#34052
2022-05-06 16:22:56 +08:00
f88dab92f9
util: use generics to implement max/min ( #34197 )
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close pingcap/tidb#34247
2022-05-06 10:08:57 +08:00
1bf64c60f4
*: Refactor FieldType structure ( #33569 )
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close pingcap/tidb#32116
2022-04-26 19:28:51 +08:00
ebdc78463a
statistics: introduce cache interface for statsCache ( #34061 )
...
* fix
Signed-off-by: yisaer <disxiaofei@163.com >
* fix
Signed-off-by: yisaer <disxiaofei@163.com >
* fix
Signed-off-by: yisaer <disxiaofei@163.com >
* fix test
Signed-off-by: yisaer <disxiaofei@163.com >
* fix test
Signed-off-by: yisaer <disxiaofei@163.com >
* fix test
Signed-off-by: yisaer <disxiaofei@163.com >
* support forward dumpfile request
Signed-off-by: yisaer <disxiaofei@163.com >
add log
Signed-off-by: yisaer <disxiaofei@163.com >
add log
Signed-off-by: yisaer <disxiaofei@163.com >
add log
Signed-off-by: yisaer <disxiaofei@163.com >
add log
Signed-off-by: yisaer <disxiaofei@163.com >
fix get topo
Signed-off-by: yisaer <disxiaofei@163.com >
revise log
Signed-off-by: yisaer <disxiaofei@163.com >
fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
revise handle error
Signed-off-by: yisaer <disxiaofei@163.com >
revise handle error
Signed-off-by: yisaer <disxiaofei@163.com >
* fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
* fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
* fix lint
Signed-off-by: yisaer <disxiaofei@163.com >
* remove limit
Signed-off-by: yisaer <disxiaofei@163.com >
* introduce interface
Signed-off-by: yisaer <disxiaofei@163.com >
* introduce tableMemUsage
Signed-off-by: yisaer <disxiaofei@163.com >
* add comments
Signed-off-by: yisaer <disxiaofei@163.com >
* add comments
Signed-off-by: yisaer <disxiaofei@163.com >
* address the comment
Signed-off-by: yisaer <disxiaofei@163.com >
* address the comment
Signed-off-by: yisaer <disxiaofei@163.com >
* address the comment
Signed-off-by: yisaer <disxiaofei@163.com >
Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io >
2022-04-20 15:06:59 +08:00
c671ebc88b
statistics: fix wrong point range in crossValidationSelectivity ( #33357 )
...
ref pingcap/tidb#28030
2022-03-28 10:52:27 +08:00
daf525a17e
*: replace compareDatum by compare, range part ( #30710 )
2021-12-16 19:48:36 +08:00
2f42f7c0f6
planner: unify the argument of stats functions to use SessionCtx instead of StatementContext ( #30668 )
2021-12-14 19:36:35 +08:00
aa002f28a2
*: show cmd to check if all needed histograms are loaded ( #29672 )
2021-12-10 13:45:57 +08:00
f82ca6a8eb
statistics, util/ranger: add cardinality estimation trace for GetRowCountBy... ( #30321 )
2021-12-07 19:45:56 +08:00
6ed0134902
statistics: pseudo table should not contain the hidden columns ( #29584 )
2021-11-09 16:27:05 +08:00
efa94595c0
*: enable golangci-lint unconvert ( #28929 )
2021-10-23 21:28:47 +08:00
94e30df8e2
parser: fix compiling, add unit tests ( #28700 )
2021-10-11 23:15:25 +08:00
7755d25aba
*: Integrate SkyWalking-eyes to check license headers in CI and fix licenses headers ( #27198 )
2021-08-16 18:52:00 +08:00
cb65b7a2f7
statistics: improve out-of-range estimation strategy ( #26502 )
2021-08-02 17:43:08 +08:00
4eeff54d85
statistics: fix the fomula for checking outdated stats ( #26728 )
2021-07-29 22:34:17 +08:00
50ae2d8266
statistics: trigger auto-analyze based on histogram row count ( #24382 )
2021-07-28 18:02:17 +08:00
32cf14bd7d
statistics: relax the check of the OutOfRange ( #24958 )
2021-06-02 22:16:25 +08:00
734084fa2b
statistics: skip reading mysql.stats_histograms if cached stats is up-to-date ( #24175 )
2021-04-22 17:37:54 +08:00
bd12ea96cc
statistics: use index fm-sketches instead of bucket NDV to calculate global NDV for indexes ( #23962 )
2021-04-15 14:59:55 +08:00
550ca8eaeb
statistics: enables global-level stats to be generated in fast analyze mode ( #22931 )
2021-03-01 16:40:50 +08:00
270d497848
statistics: introduce new estimation logic when index histogram fails to estimate ( #22682 )
...
* statistics: introduce new estimation logic when index histogram fail to estimate
* address comments
* address comments
Co-authored-by: Ti Chi Robot <71242396+ti-chi-bot@users.noreply.github.com >
2021-02-24 16:30:03 +08:00
f3fe4895cb
statistics: support to store FMSketch and add FMSketch to column stats ( #22841 )
...
* add FMSketch to mysql.stats_histograms
* statistics: support store FMSketch and add FMSketch to histogram
* FIX UT
* Create Stats_FM_Sketch Table
* fix UT
* add some tests
* FIX ut
* move fmSketch from histogram to column.stats
* remove unused code and comments
* fix ut
* fix ut
* fix ut
* fix ut
* fix ut
* fix ut
* finish the FMSketch.MemoryUsage function
* add some comments for FMSketch.MemoryUsage function
* fix typo
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
Co-authored-by: Ti Chi Robot <71242396+ti-chi-bot@users.noreply.github.com >
2021-02-23 10:39:09 +08:00
2d717c12b3
statistics: merge the partition-level stats to global-level stats ( #22667 )
2021-02-05 11:42:41 +08:00
343c412531
planner, executor, statistics: add tests for version 2 and fix bugs ( #22461 )
...
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2021-02-04 15:52:30 +08:00
f22ec62dd0
statistics: fix panic occurs when stats cache inconsistency ( #22465 )
2021-01-27 16:41:07 +08:00
8d2ab4ef7a
statistics: fix inaccurate row count estimation caused by cross validation using invalid column stats ( #22479 )
2021-01-22 17:42:37 +08:00
3dd842f50a
statistics: add bucket ndv for index histogram ( #20580 )
...
Co-authored-by: Yuanjia Zhang <zhangyuanjia@pingcap.com >
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2021-01-13 18:24:21 +08:00
76054200b6
statistics: redesign the schema for mysql.stats_extended ( #22033 )
...
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2021-01-04 17:57:24 +08:00
092a01a0a4
statistics, executor: refactor statistics on columns ( #21817 )
2020-12-24 13:56:30 +08:00
5acff8de7a
*: Revert " #19008 " and " #18788 " ( #21599 )
2020-12-14 15:06:35 +08:00
b4eee287af
*: extract topn out of histogram correctly ( #21007 )
...
Co-authored-by: Yuanjia Zhang <zhangyuanjia@pingcap.com >
2020-12-10 17:05:39 +08:00
152b60ebe4
session: increase cm_sketch column max length to 6291456(6MB) ( #20152 )
2020-11-02 15:21:25 +08:00
c2e3b0a6ad
statistics: decouple TopN from CMSKetch ( #20572 )
2020-10-28 15:16:42 +08:00
