maropu commented on issue #27235: [SPARK-30527][SQL] Add IsNotNull filter when use In, InSet and InSubQuery URL: https://github.com/apache/spark/pull/27235#issuecomment-575083216 Are they NULL intolerant? ``` postgres=# \pset null 'NULL' Null display is "NULL". postgres=# select * from t; k | v ------+------ NULL | NULL (1 row) postgres=# select * from t where v in (1, 2); k | v ---+--- (0 rows) ```
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