On January 6, 2004 07:20 am, Shridhar Daithankar wrote: > On Tuesday 06 January 2004 17:48, D'Arcy J.M. Cain wrote: > > On January 6, 2004 01:42 am, Shridhar Daithankar wrote: > > cert=# select relpages,reltuples::bigint from pg_class where relname= > > 'certificate'; > > relpages | reltuples > > ----------+----------- > > 399070 | 24858736 > > (1 row) > > > > But: > > > > cert=# select count(*) from certificate; > > [*Crunch* *Crunch* *Crunch*] > > count > > ---------- > > 19684668 > > (1 row) > > > > Am I missing something? Max certificate_id is 20569544 btw. > > Do 'vacuum analyze certificate' and try..:-)
Kind of invalidates the part about being accurate then, don't it? Besides, I vacuum that table every day (*) and we have reorganized the schema so that we never update it except in exceptional cases. I would be less surprised if the result was less than the real count since we only insert into that table. In any case, if I have to vacuum a 20,000,000 row table to get an accurate count then I may as well run count(*) on it. (*): Actually I only analyze but I understand that that should be sufficient. -- D'Arcy J.M. Cain <[EMAIL PROTECTED]|vex}.net> | Democracy is three wolves http://www.druid.net/darcy/ | and a sheep voting on +1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner. ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
