> -----Original Message----- > From: Jason Tesser [mailto:[EMAIL PROTECTED] > Sent: Thursday, February 12, 2004 10:03 AM > To: [EMAIL PROTECTED] > Subject: [GENERAL] help with query speed > > > I have the below query written. I have removed a lot from the select > Statement for simplicity sake. The query takes way too long. > I am moving from an Access backend to a Postgres back with > Access in the front. The below query is taking like 14-20 seconds. > Is their a better way I can write the joins. I would think that > Postgres should be fast than Access. BTW I am writing these as > Pass through queries so it is not a problem with Access. I > have Even ran the query directly against Postgres. > > SELECT > tblroster.transcriptlink > FROM > tblroster > FULL OUTER JOIN testclass ON (tblroster.classlink = > testclass.classid) > FULL OUTER JOIN tblqualitypoint ON (tblroster.lettergrade = > tblqualitypoint.letter) > ORDER BY > tblroster.transcriptlink
Is there an index on: tblroster.classlink Is there an index on: testclass.classid Is there an index on: tblroster.lettergrade Is there an index on: tblqualitypoint.letter Is there an index on: tblroster.transcriptlink How many rows are in the tables? ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html