On Wed, Jun 29, 2005 at 09:25:24AM -0400, David Gagnon wrote: > > I stop the following statement after 3 minutes.... > > explain analyse select * > From IC > where IC.ICNUM NOT IN (select IRICNUM from IR WHERE IRSTATUT in > (1, 2))
What does EXPLAIN without ANALYZE show? What are the table definitions and what are the results of the following queries? SELECT COUNT(*) FROM IC; SELECT COUNT(*) FROM IR; SELECT COUNT(*) FROM IR WHERE IRSTATUT IN (1, 2); SELECT COUNT(DISTINCT IRICNUM) FROM IR WHERE IRSTATUT IN (1, 2); Have you run VACUUM ANALYZE on the tables? -- Michael Fuhr http://www.fuhr.org/~mfuhr/ ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
