Details
Description
This comes from Monty who got a complaint from a user
After MDEV-28846, rowid filtering optimization is applied in the cases where it should not be.
Also, reading the optimizer code, one can see obvious cost computation errors.
Attachments
Issue Links
- includes
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MDEV-30142 rowid_filter: negative access cost factor values
- Closed
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MDEV-30167 Huge slow down in query performance. ENGINE=SPHINX
- Open