-
Type: Task
-
Resolution: Fixed
-
Priority: Major - P3
-
Affects Version/s: None
-
Component/s: Index Maintenance, Querying
-
Labels:None
-
Fully Compatible
-
Query 2019-11-18, Query 2019-12-02, Query 2019-12-16
Should verify that:
- Compound hashed indexes cannot be built while in FCV 4.2.
- Can be built and queried in FCV 4.4
- Compound hashed Indexes created under FCV 4.4 can be used when FCV is downgraded to 4.2, but no further indexes can be built.
- Downgrading to binary 4.2 while a compound hashed index exists will cause an fassert, but the mongod can be started successfully if the index is dropped before downgrade.
- depends on
-
SERVER-43912 Query planner support for compound hashed indexes
- Closed