Module datafusion_optimizer::filter_null_join_keys

The FilterNullJoinKeys rule will identify inner joins with equi-join conditions where the join key is nullable on one side and non-nullable on the other side and then insert an IsNotNull filter on the nullable side since null values can never match.

Structs

FilterNullJoinKeys

The FilterNullJoinKeys rule will identify inner joins with equi-join conditions where the join key is nullable on one side and non-nullable on the other side and then insert an IsNotNull filter on the nullable side since null values can never match.