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*: Reorg part update table #40714

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mjonss
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@mjonss mjonss commented Jan 18, 2023

What problem does this PR solve?

PR on top of #40543 so looks bigger than it is.

Implementing Reorganize Partition specifics of Update Table (+ updated test)

Issue Number: close #38535

Problem Summary:

What is changed and how it works?

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

chrysan and others added 30 commits December 20, 2022 20:50
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ti-chi-bot commented Jan 18, 2023

[REVIEW NOTIFICATION]

This pull request has been approved by:

  • bb7133
  • tiancaiamao

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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 Jan 18, 2023
@mjonss mjonss changed the title *: Reorg part update table *: Reorg part update table | tidb-test=pr/2069 Jan 18, 2023
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mjonss commented Jan 18, 2023

/retest

@ti-chi-bot ti-chi-bot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Jan 19, 2023
@ti-chi-bot ti-chi-bot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Jan 19, 2023
ddl/backfilling.go Show resolved Hide resolved
@@ -61,6 +61,21 @@ func (h *Handle) HandleDDLEvent(t *util.Event) error {
return err
}
}
case model.ActionReorganizePartition:
for _, def := range t.PartInfo.Definitions {
// TODO: Should we trigger analyze instead of adding 0s?
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What does 'adding 0s' mean?

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So this will just write stats as all zeros / empty table/indexes. Preferably I think it should trigger stats on the new partitions, including their indexes as well as update the global stats. And also wait for all this during the DeleteReorganization phase, so stats are up-to-date when going to StatePublic where the stats will be needed.

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LGTM

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Jan 19, 2023
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bb7133 commented Jan 19, 2023

PTAL @wjhuang2016 @tangenta

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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 Jan 20, 2023
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mjonss commented Jan 20, 2023

/merge

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

Commit hash: 0cb356f

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Jan 20, 2023
@mjonss mjonss changed the title *: Reorg part update table | tidb-test=pr/2069 *: Reorg part update table Jan 20, 2023
@ti-chi-bot ti-chi-bot merged commit 07a7465 into pingcap:feature/reorganize-partition Jan 20, 2023
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