On Tue, Apr 5, 2011 at 1:25 PM, Maria L. Wilson <Maria.L.Wilson-1@xxxxxxxx> wrote: This bit: > left outer join INVENTORY IV on GV.GRANULE_ID = IV.GRANULE_ID, INVSENSOR > INVS has both an explicit and an implicit join. This can constrain join re-ordering in the planner. Can you change it to explicit joins only and see if that helps? -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance