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planner: set cost model to ver1 for clusters upgrading from pre-6.1 version #39537

Merged
merged 7 commits into from
Dec 1, 2022
Merged

planner: set cost model to ver1 for clusters upgrading from pre-6.1 version #39537

merged 7 commits into from
Dec 1, 2022

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qw4990
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@qw4990 qw4990 commented Dec 1, 2022

What problem does this PR solve?

Issue Number: close #39524

Problem Summary: planner: set cost model to ver1 for clusters upgrading from pre-6.1 version

What is changed and how it works?

planner: set cost model to ver1 for clusters upgrading from pre-6.1 version

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

Please refer to Release Notes Language Style Guide to write a quality release note.

None

@qw4990 qw4990 requested a review from a team as a code owner December 1, 2022 07:09
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ti-chi-bot commented Dec 1, 2022 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • Reminiscent
  • XuHuaiyu

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
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 release-note-none Denotes a PR that doesn't merit a release note. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Dec 1, 2022
@qw4990 qw4990 added sig/planner SIG: Planner epic/cost-model the optimizer cost model and removed size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Dec 1, 2022
@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Dec 1, 2022
@ti-chi-bot ti-chi-bot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Dec 1, 2022
@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 Dec 1, 2022
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qw4990 commented Dec 1, 2022

/merge

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

Commit hash: 5db5c31

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Dec 1, 2022
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qw4990 commented Dec 1, 2022

/merge

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qw4990 commented Dec 1, 2022

/run-check_dev_2

@qw4990 qw4990 merged commit c3565a1 into pingcap:master Dec 1, 2022
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@XuHuaiyu XuHuaiyu XuHuaiyu approved these changes

@Reminiscent Reminiscent Reminiscent approved these changes

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epic/cost-model the optimizer cost model release-note-none Denotes a PR that doesn't merit a release note. sig/planner SIG: Planner size/L Denotes a PR that changes 100-499 lines, ignoring generated files. status/can-merge Indicates a PR has been approved by a committer. status/LGT2 Indicates that a PR has LGTM 2.
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Successfully merging this pull request may close these issues.

upgrade tidb cluster, the default of tidb_cost_model_version is unreasonable
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@qw4990 @ti-chi-bot @XuHuaiyu @Reminiscent