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Commits on May 13, 2021

• ranger: fix the case which could have duplicate ranges (pingcap#24590)

  winoros

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Commits on May 2, 2021

• stats, executor: use a correct sampling to collect stats (pingcap#23997)

  winoros

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  18d519f

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Commits on Apr 22, 2021

• statistics: introduce the weighted reservoir sampling (pingcap#24089)

  winoros

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  ae7346f

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Commits on Apr 2, 2021

• statistics: feedback not panic when no ndv collected (pingcap#23808)

  winoros

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Commits on Mar 22, 2021

• planner: incorrect results returned when executing a prepared point-get update meets nondeterministic function. (pingcap#22067) (pingcap#23455)

  winoros

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Commits on Mar 16, 2021

• statistics: hide the tidb_analyze_version before it's GA (pingcap#23327)

  winoros

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  23227ea

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Commits on Mar 4, 2021

• statistics: make exponential backoff estimation more safe (pingcap#23086)

  winoros

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  263155a

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Commits on Mar 3, 2021

• statistics: fix the correlation estimation for version 2 (pingcap#23057)

  winoros

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Commits on Feb 24, 2021

• statistics: introduce new estimation logic when index histogram fails to estimate (pingcap#22682)

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  winoros

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  ti-chi-bot

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  270d497

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Commits on Feb 4, 2021

• planner, executor, statistics: add tests for version 2 and fix bugs (pingcap#22461)

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  winoros

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  ti-srebot

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  343c412

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Commits on Feb 1, 2021

• statistics: fix bug when bootstrap version 2 stats (pingcap#22608)

  winoros

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  109ad45

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Commits on Jan 13, 2021

• statistics: add bucket ndv for index histogram (pingcap#20580)

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  3 peopleauthored
  3dd842f

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Commits on Jan 6, 2021

• executor, planner: ON DUPLICATE UPDATE can refer to un-project col (pingcap#14412)

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Commits on Dec 31, 2020

• planner: join reorder should not change the order of output columns (pingcap#16852)

  winoros

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  857e3da

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Commits on Dec 23, 2020

• config: disable statistics feedback by default (pingcap#21923)

  winoros

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  d6ebb37

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Commits on Dec 10, 2020

• *: extract topn out of histogram correctly (pingcap#21007)

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  winoros

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  qw4990

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  b4eee28

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Commits on Dec 8, 2020

• sessionctx: add variable tidb_analyze_version (pingcap#21515)

  winoros

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  b269ef8

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Commits on Dec 1, 2020

• executor: add SHOW STATS_TOPN (pingcap#21403)

  winoros

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  90c7987

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Commits on Nov 25, 2020

• statistics: fix the panic when analyze with collation enabled (pingcap#21262)

  winoros

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  0cddd8b

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Commits on Nov 24, 2020

• executor: set the inner join keys' field length to unspecified (pingcap#21233)

  winoros

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Commits on Nov 23, 2020

• planner: DELETE cannot delete data in some cases when the database name is capitalized (pingcap#21202)

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  winoros

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  ti-srebot

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  1cdc15b

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Commits on Nov 12, 2020

• executor: stablize TestDropStatsFromKV (pingcap#21004)

  winoros

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  15abd8b

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Commits on Nov 6, 2020

• statistics: store the topn by slice instead of map (pingcap#20818)

  winoros

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  583cbd2

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Commits on Aug 27, 2020

• server: listen port 0 when testing (pingcap#19478)

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  3 peopleauthored
  9ed4159

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Commits on Jul 21, 2020

• planner: don't put the handle column twice into the index column (pingcap#18565)

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  winoros

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  ti-srebot

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  847a3b7

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Commits on Jul 1, 2020

• *: fix the estimation error on normal column when collation enabled (pingcap#18104)

  winoros

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  ceec9d9

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Commits on May 18, 2020

• planner: return error when SPLIT PARTITION TABLE on non-partitioned table (pingcap#17218)

  winoros

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  f06fc35

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Commits on Apr 23, 2020

• ranger: check the collation when checking like func (pingcap#16380)

  winoros

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  99bd763

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Commits on Apr 22, 2020

• expression: constant propagation for outer join don't prop con… (pingcap#15855)

  winoros

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  0f2dbcd

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Commits on Apr 1, 2020

• exprssion, planner: fix the uncorrect behavior when finding access conditions (pingcap#15888)

  winoros

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  82529c8

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Commits on Mar 26, 2020

• expression: fix the behavior when in func meet collation (pingcap#15609)

  winoros

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  db789d7

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• statistics: fix panic when getStatsReader fail (pingcap#15651)

  winoros

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  2846f5c

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Commits on Mar 13, 2020

• ranger: fix the range calculation when we meet collation (pingcap#15179)

  winoros

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  14d290f

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Commits on Feb 20, 2020

• *: Collation should be set accordingly when setting string datum (pingcap#14757)

  winoros

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Commits on Dec 31, 2019

• *: only add union scan when dirty table is not empty (pingcap#14265)

  

  winoros

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  zz-jason

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