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db: use delete-only compaction hints to do excises #3926

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db: use delete-only compaction hints to do excises #3926

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Commits on Oct 3, 2024

  1. db: use delete-only compaction hints to do excises 

    Previously, we'd only act on delete-only compaction hints if
the entirety of a file was covered by a delete-only compaction
hint. This change leverages the fact that we can now partially
excise files using virtual sstables, to also use delete-only
compactions to do excises of partial sstables and reduce the
w-amp impact of writing rangedels and rangekeydels.

Fixes cockroachdb#3820.
    @itsbilal
    itsbilal committed Oct 3, 2024
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