[GENERAL] Autovacuum not vacuuming pg_largeobject

2007-08-30 Thread Denis Gasparin
I'm a bit concerned about the autovacuum daemon. Today I runned a vacuum full during a normal maintainance task and I noticed that the size of pg_largeobject decreased from 14GB to 4GB... Every night we have a procedure that deletes large object no more referenced using the vacuumlo program.

Re: [GENERAL] Autovacuum not vacuuming pg_largeobject

2007-08-30 Thread Tom Lane
Denis Gasparin [EMAIL PROTECTED] writes: I'm a bit concerned about the autovacuum daemon. Today I runned a vacuum full during a normal maintainance task and I noticed that the size of pg_largeobject decreased from 14GB to 4GB... Every night we have a procedure that deletes large object no

Re: [GENERAL] Autovacuum not vacuuming pg_largeobject

2007-08-30 Thread Denis Gasparin
Yeah, you're wrong. The difference is that plain vacuum does not try very hard to reduce the length of a table file --- it just frees up space within the file for reuse. vacuum full will actually move things from the end of the file to free space nearer the head of the file, so that it can

Re: [GENERAL] Autovacuum not vacuuming pg_largeobject

2007-08-30 Thread Ron Mayer
Denis Gasparin wrote: Yeah, you're wrong. The difference is that plain vacuum does not try very hard to reduce the length of a table file --- it just frees up space within the file for reuse. vacuum full will actually move things from the end of the file to free space nearer the head of the