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planner/core: fix a panic when select for update on join partition table with normal table #26373

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merged 2 commits into from
Jul 20, 2021

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tiancaiamao
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What problem does this PR solve?

Issue Number: close #26250

Problem Summary:

What is changed and how it works?

What's Changed:

Add extra partition column do not consider the case when the DataSource is not a partition table.

How it Works:

Do not add extra partition column when the table is not a partitioned table.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No code

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

  • Fix a panic when select for update on a normal table join a partition table

@ti-chi-bot ti-chi-bot added the size/S Denotes a PR that changes 10-29 lines, ignoring generated files. label Jul 20, 2021
@tiancaiamao tiancaiamao requested a review from qw4990 July 20, 2021 07:38
@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Jul 20, 2021
@qw4990 qw4990 added sig/execution SIG execution sig/planner SIG: Planner labels Jul 20, 2021
@qw4990 qw4990 requested a review from lysu July 20, 2021 07:42
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • qw4990
  • zhuo-zhi

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After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Jul 20, 2021
@ichn-hu ichn-hu mentioned this pull request Jul 20, 2021
@tiancaiamao
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/merge

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This pull request has been accepted and is ready to merge.

Commit hash: 0c7ff7f

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Jul 20, 2021
@tiancaiamao
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/run-cherry-pick

ti-srebot pushed a commit to ti-srebot/tidb that referenced this pull request Jul 26, 2021
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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cherry pick to release-5.1 in PR #26563

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Cherry pick to 5.1 branch in #26631

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Successfully merging this pull request may close these issues.

Join partition table with normal table will cause error: invalid memory address or nil pointer dereference
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