WL#2267: Make HA_NULL_IN_KEY part of index_flags (instead of table_flags)
Affects: Server-5.0 — Status: Un-Assigned — Priority: Medium
HA_NULL_IN_KEY is currently a table flag forcing a handler to support NULL searches on all indexes or none. In ndbcluster pure UNQIUE INDEXES (USING HASH) do not support NULL search. Allowing to declare this in the index_flags instead would signal to the optimizer not to do NULL searches for these kind of indexes.
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