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Attempt INSTANT DDL first #1201

Merged
merged 10 commits into from
Nov 16, 2022
Merged

Attempt INSTANT DDL first #1201

merged 10 commits into from
Nov 16, 2022

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morgo
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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.

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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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@dm-2 dm-2 left a comment

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

doc/command-line-flags.md Show resolved Hide resolved
go/logic/migrator.go Outdated Show resolved Hide resolved
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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