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refactor: refine column statistic map serialization #16728

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merged 1 commit into from
Oct 30, 2024

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@dantengsky dantengsky commented Oct 30, 2024

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

Summary

This PR modifies the serialization process for the ColumnStatistics map to exclude columns of unsupported types.

When merging snapshots or block metadata, column statistics may include legacy types that are no longer supported. If these columns are not excluded, serialization will fail.

The changes introduced in #16719 allow legacy type scalars to be de-serialized. If these legacy columns are present in the column statistics during de-serialization, they will be excluded to prevent runtime errors.

Tests

  • Unit Test
  • Logic Test
  • Benchmark Test
  • No Test - refactor

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):

This change is Reviewable

@github-actions github-actions bot added the pr-refactor this PR changes the code base without new features or bugfix label Oct 30, 2024
@dantengsky dantengsky force-pushed the refactor-col-stats-ser branch from 8e009a1 to 765aba7 Compare October 30, 2024 05:52
While serializing ColumnStatistics map, excludes columns which is of unsupported type
@dantengsky dantengsky force-pushed the refactor-col-stats-ser branch from 765aba7 to b448823 Compare October 30, 2024 07:24
@dantengsky dantengsky marked this pull request as ready for review October 30, 2024 10:11
@dantengsky dantengsky added this pull request to the merge queue Oct 30, 2024
@BohuTANG BohuTANG removed this pull request from the merge queue due to a manual request Oct 30, 2024
@BohuTANG BohuTANG merged commit 959e416 into databendlabs:main Oct 30, 2024
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dantengsky added a commit that referenced this pull request Oct 30, 2024
While serializing ColumnStatistics map, excludes columns which is of unsupported type
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3 participants