On Tue, Nov 20, 2012 at 12:04 PM, Merlin Moncure <mmoncure@xxxxxxxxx> wrote: > The problem here is very clear. Oracle is optimizing through the CTE. > PostgreSQL does not do this by design -- CTE's are used as a forced > materialization step. While I love that design (it lets me solve lots of problems for huge queries), wouldn't pushing constraints into the CTE be a rather safe optimization? -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
