Details
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Task
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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None
Description
This tasks relates to analysing performance of the implementation of packed keys in Unique implemented in MDEV-21829.
Performance should be tested with
- EITS
- COUNT(DISTINCT col)
- GROUP_CONCAT(DISTINCT col1,col2....)
- Index merge (no packing here but we should not get regressions here)
Attachments
Issue Links
- relates to
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MDEV-21829 Use packed sort keys in Unique objects
- Stalled