On Tue, Sep 06, 2005 at 11:32:00AM -0400, Tom Lane wrote: > "Brian Choate" <[EMAIL PROTECTED]> writes: > > We are seeing a very strange behavior from postgres. For one of our very = > > common tasks we have to delete records from a table of around 500,000 = > > rows. The delete is by id which is the primary key. It seems to be = > > consistently taking around 10 minutes to preform. This is totally out of = > > line with the rest of the performance of the database. > > I'll bet this table has foreign-key references from elsewhere, and the > referencing columns are either not indexed, or not of the same datatype > as the master column.
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Wouldn't setting the FK as deferrable and initially deferred help here too as then the FK wouldn't be checked until the transaction ended? Matthew ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
