Kenneth Marshall wrote:
EXISTS matches NULLs too and since they are not indexed a sequential scan is needed to check for them. Try using IN instead.
This is nonsense in more than one way. regards Yeb Havinga -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
