Details
-
Improvement
-
Resolution: Duplicate
-
Major - P3
-
None
-
None
-
None
Description
Cardinality Histogram for indexes, similar to what a lot of relational databases have.
This will allow for the query planner to more intelligently decide when it is optimal to use certain indexes over others on a per query basis (Not simply based off a cached value that might be a one off). This will allow for more effective use of index intersection, indexes, and tablescans (where appropriate)
Attachments
Issue Links
- duplicates
-
SERVER-20619 Statistics-based query optimization
-
- Backlog
-