Re: Re: Heaps of read() syscalls by the postmaster - Mailing list pgsql-hackers

Matthias Urlichs wrote:
> 
> Hi,
> 
> Hiroshi Inoue:
> >
> > This seems to scan a system table(pg_index ?).
> 
> You're right. It's the database's test/pg_attribute file,
> which is a whopping 41 MBytes.

Do we shrink system tables on vacuum  ?

It's possible that running some benchmark that creates/drops tables
repetedly will blow up the size of system tables incl. pg_attribute.

----------------
Hannu