On Sat, Dec 17, 2005 at 09:10:40PM -0800, James Klo wrote: > I'd like some suggestions on how to get the deletes to happen faster, as > while deleting individually appears to extremely fast, when I go to > delete lots of rows the operation takes an extremely long time to > complete (5000 rows takes about 3 minutes, 1000000 rows takes almost > close to 4 hours or more depending upon server load; wall time btw). Those times do seem excessive -- do any other tables have foreign key references to the table you're deleting from? If so, do those tables have indexes on the referring columns? Does this table or any referring table have triggers? Also, are you regularly vacuuming and analyzing your tables? Have you examined pg_locks to see if an unacquired lock might be slowing things down? -- Michael Fuhr
