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Attempt INSTANT DDL first by morgo · Pull Request #1201 · github/gh-ost · GitHub
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@morgo morgo commented Nov 14, 2022

Fixes #1198

Description

This adds support for attempting INSTANT DDL from MySQL 8.0 before applying gh-ost's original algorithm. It is disabled by default for now (per suggestion), although in future it makes sense to enable by default and hide behind version detection.

In case this PR introduced Go code changes:

  • contributed code is using same conventions as original code
  • script/cibuild returns with no formatting errors, build errors or unit test errors.

@morgo morgo force-pushed the attempt-instant-ddl branch from bbcd1e8 to 75a346b Compare November 14, 2022 18:47
@morgo morgo force-pushed the attempt-instant-ddl branch from cd83cbd to b06c1cd Compare November 14, 2022 19:35
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@timvaillancourt timvaillancourt left a comment

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Thanks @morgo! I like the flag approach 👍

Added a few comments inline

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I've added some thoughts around docs/output - the actual code looks good to me though 👍

morgo and others added 3 commits November 15, 2022 12:05
Co-authored-by: dm-2 <45519614+dm-2@users.noreply.github.com>
…t-instant-ddl

* origin/attempt-instant-ddl:
  Update go/logic/migrator.go
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LGTM 👍. Thanks again @morgo!

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Thanks @morgo, this looks great! 🚀

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Use mysql 8.0 INSTANT DDL if supported

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