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executor: support new aggregate function APPROX_PERCENTILE (#19799) #20197

Merged
merged 6 commits into from Oct 19, 2020
Merged

executor: support new aggregate function APPROX_PERCENTILE (#19799) #20197

merged 6 commits into from Oct 19, 2020

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cherry-pick #19799 to release-4.0

What problem does this PR solve?

Issue Number: #19405

Problem Summary:

What is changed and how it works?

What's Changed:

  • Add a new aggregate function APPROX_PERCENTILE

How it Works:

  • Fetch a column, and perform k-th smallest element algorithm on it to find specified percentile.

Related changes

  • PR to update pingcap/docs/pingcap/docs-cn: TODO
  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test
  • Integration test

Side effects

Release note

  • Support new aggregate function APPROX_PERCENTILE

@leiysky @ti-srebot
cherry pick pingcap#19799 to release-4.0
840495f 
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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/run-all-tests

@ti-srebot ti-srebot mentioned this pull request Sep 24, 2020
Merged
@ti-srebot ti-srebot added this to the v4.0.7 milestone Sep 24, 2020
lzmhhh123
lzmhhh123 reviewed Sep 24, 2020
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@leiysky Please help resolve conflicts.

@lzmhhh123 lzmhhh123 modified the milestones: v4.0.7, v4.0.8 Sep 24, 2020
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leiysky commented Sep 24, 2020

/run-all-tests

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leiysky commented Sep 25, 2020

/run-all-tests

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leiysky commented Oct 19, 2020

/run-all-tests

lzmhhh123
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LGTM

@ti-srebot ti-srebot added the status/LGT1 Indicates that a PR has LGTM 1. label Oct 19, 2020
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leiysky commented Oct 19, 2020

/merge

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Sorry @leiysky, this branch cannot be merged without an approval of release maintainers

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/cc @SunRunAway

fzhedu
fzhedu approved these changes Oct 19, 2020
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LGTM

@ti-srebot ti-srebot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Oct 19, 2020
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/merge

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Sorry @lzmhhh123, this branch cannot be merged without an approval of release maintainers

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/merge

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Sorry @lzmhhh123, this branch cannot be merged without an approval of release maintainers

@ghost ghost changed the title executor: support new aggregate funtion APPROX_PERCENTILE (#19799) executor: support new aggregate function APPROX_PERCENTILE (#19799) Oct 19, 2020
@ti-srebot ti-srebot added status/LGT3 The PR has already had 3 LGTM. and removed status/LGT2 Indicates that a PR has LGTM 2. labels Oct 19, 2020
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leiysky commented Oct 19, 2020

/merge

@ti-srebot ti-srebot added the status/can-merge Indicates a PR has been approved by a committer. label Oct 19, 2020
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/run-all-tests

@ti-srebot ti-srebot merged commit cae843b into pingcap:release-4.0 Oct 19, 2020
@leiysky leiysky deleted the release-4.0-aceecf073276 branch October 19, 2020 06:26
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Reviewers

@SunRunAway SunRunAway SunRunAway approved these changes

@fzhedu fzhedu fzhedu approved these changes

@lzmhhh123 lzmhhh123 lzmhhh123 approved these changes

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@leiysky leiysky

Labels
challenge-program component/expression sig/execution SIG execution status/can-merge Indicates a PR has been approved by a committer. status/LGT3 The PR has already had 3 LGTM. type/new-feature type/4.0-cherry-pick
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v4.0.8
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