v.21.8Improvement

Fix intersecting parts issue after DROP PART or empty part deletion

Official CH changelog text
Fix an issue which can lead to intersecting parts after DROP PART or background deletion of an empty part. #25884 (alesapin).
Fixes an issue in ClickHouse that could cause intersecting parts after executing DROP PART or during the background deletion of empty parts.

Why it matters

This fix addresses a data consistency problem where parts in the MergeTree tables could overlap following the deletion of parts, ensuring the integrity of the dataset and preventing potential query errors or data corruption.

How to use it

Users should upgrade to the ClickHouse version that includes this fix. No additional configuration or settings changes are required to benefit from this correction.

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