On Wednesday 14 April 2004 18:53, Rajesh Kumar Mallah wrote: > Hi > I have .5 million rows in a table. My problem is select count(*) takes > ages. VACUUM FULL does not help. can anyone please tell me > how to i enhance the performance of the setup.
> SELECT count(*) from eyp_rfi; If this is the actual query you're running, and you need a guaranteed accurate result, then you only have one option: write a trigger function to update a table_count table with every insert/delete to eyp_rfi. There is loads of info on this (and why it isn't as simple as you might think) in the archives. First though: 1. Is this the actual query, or just a representation? 2. Do you need an accurate figure or just something "near enough"? -- Richard Huxton Archonet Ltd ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
