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feat: snapshots generated in multi txn has same prev_snapshot_id #16044

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merged 4 commits into from
Jul 15, 2024

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SkyFan2002
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@SkyFan2002 SkyFan2002 commented Jul 14, 2024

I hereby agree to the terms of the CLA available at: https://docs.databend.com/dev/policies/cla/

Summary

This PR maintains a property: For any snapshot s, if s.prev != null, then s.prev must have been successfully committed, which will be the basis of the new vacuum protocol

Tests

  • Unit Test
  • Logic Test
  • Benchmark Test
  • No Test - Explain why

Type of change

  • Bug Fix (non-breaking change which fixes an issue)
  • New Feature (non-breaking change which adds functionality)
  • Breaking Change (fix or feature that could cause existing functionality not to work as expected)
  • Documentation Update
  • Refactoring
  • Performance Improvement
  • Other (please describe):

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@github-actions github-actions bot added the pr-feature this PR introduces a new feature to the codebase label Jul 14, 2024
@SkyFan2002 SkyFan2002 marked this pull request as ready for review July 14, 2024 05:07
@SkyFan2002 SkyFan2002 requested review from dantengsky and zhyass July 14, 2024 05:07
@dantengsky
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some tweaks

SkyFan2002#11

please take a look.

chore: tweak logic test & code comment
@dantengsky dantengsky added this pull request to the merge queue Jul 15, 2024
Merged via the queue into databendlabs:main with commit cc5aa8e Jul 15, 2024
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