> >IIRC, the win32 installer will enable autovacuum by default. 
> And yes, 
> >autovacuum was my first thought as well after Thomas last 
> mail - that 
> >would be a good explanation to why it happens when the postmaster is 
> >idle.
> >  
> >
> I used  the win32 installer defaults so autovacuum is 
> probably a safe assumption.

Right. Please try turning it off and see if the problem goes away.

//Magnus

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