Re: new GUC var: autovacuum_process_all_tables

Alvaro Herrera escreveu:
> Hi,
> 
> Right now, when autovacuum is turned on we always assume it's supposed
> to process all tables except those that have autovacuum_enabled=false.
> 
> Now, sometimes it might make more sense to keep it enabled but have it
> only check for certain tables, and leave the majority of them disabled.
> For this we'd have a separate GUC parameter, as in $SUBJECT (I'm not
> wedded to the name), and have the user set autovacuum_enabled=true via
> reloptions to enable it.
> 
> Opinions?
> 
What about 'autovacuum_mode'? Values could be 'all' and 'reloption'.

If we don't want to add another GUC, I'll go changing the 'autovacuum' GUC.
Values would be: 'on' means enable autovacuum and process all tables, 'off'
means disable autovacuum and 'reloption' (?) means only process those tables
that have reloption autovacuum_enabled=true. The con is that we couldn't
implement a per-{schema,database} switch for autovacuum. So I prefer the first
one.


--  Euler Taveira de Oliveira http://www.timbira.com/