> Yeah. The ORDER BY creates a partial optimization fence, preventing > any such plan from being considered. >> I can see in the general case it semanticly means different things If you allow the WHERE to pass through ORDER BY. A special case can be allowed for WHERE to pass the ORDER BY if the column is part of DISTINCT ON. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general