> -----Original Message-----
> [mailto:[EMAIL PROTECTED] On Behalf Of Tom Lane
> Sent: 27 June 2006 05:12
> To: Alvaro Herrera
> Cc: Hackers
> Subject: Re: [HACKERS] [COMMITTERS] pgsql: Clamp 
> last_anl_tuples to n_live_tuples, in case we vacuum a table 
> Alvaro Herrera <[EMAIL PROTECTED]> writes:
> > On a loosely related matter, how about changing pg_class.relpages to
> > pg_class.reldensity?
> IIRC, I considered this earlier, and rejected it because it 
> doesn't cope
> well with the corner case relpages == 0.  Also, it'll break existing
> clients that expect to find relpages and reltuples, if there are any

There are.


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