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planner: fix wrong columns pruning for partition union all (#19527) #19546

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merged 3 commits into from
Sep 1, 2020

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cherry-pick #19527 to release-4.0


What problem does this PR solve?

Issue Number: close #19450, close #19161

Problem Summary: It's a bug-fix for release-4.0

What is changed and how it works?

How it Works: when clone datasource, clone its schema.

Related changes

  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test
  • Integration test

Side effects

  • Performance regression
    • Consumes more CPU

Release note

  • fix wrong results when convert apply to hash join on partition table.

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/run-all-tests

@tiancaiamao
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Some unrelated codes are bring in, please update the PR @lzmhhh123

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LGTM

@ti-srebot ti-srebot added the status/LGT1 Indicates that a PR has LGTM 1. label Aug 28, 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 Sep 1, 2020
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zz-jason commented Sep 1, 2020

/merge

@ti-srebot ti-srebot added the status/can-merge Indicates a PR has been approved by a committer. label Sep 1, 2020
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Your auto merge job has been accepted, waiting for:

  • 18801
  • 19445
  • 19518
  • 19452
  • 19439
  • 19465
  • 19628
  • 19611
  • 19577
  • 19559
  • 19614

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/run-all-tests

@ti-srebot ti-srebot merged commit 5ad2cd9 into pingcap:release-4.0 Sep 1, 2020
@tiancaiamao tiancaiamao deleted the release-4.0-07453ff73503 branch September 1, 2020 08:07
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4 participants