Details
-
New Feature
-
Status: Stalled (View Workflow)
-
Critical
-
Resolution: Unresolved
-
None
Description
According to igor, the entire function handler::records_in_range() should be replaced with something that returns the position of a key, as a floating-point number between 0 (start of index) and 1 (end of index). Perhaps we could take a collection of keys as a parameter, so that we can minimize the amount of operations on index or page latches?
Attachments
Issue Links
- relates to
-
MDEV-19873 Different EXPLAIN SELECT DISTINCT on just created table and after deleted records
- Open
-
MDEV-21136 InnoDB's records_in_range estimates can be way off
- Closed
-
MDEV-19424 InnoDB's records_in_range estimates are capped at about 50%
- Open