Postgres Pro
Downloads
Home   >   mailing lists

Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table
Date
Msg-id 8953.1151381533@sss.pgh.pa.us
Whole thread Raw
In response to Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table  (Alvaro Herrera <alvherre@commandprompt.com>)
Responses Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table  ("Dave Page" <dpage@vale-housing.co.uk>)
List pgsql-hackers
Tree view 
Alvaro Herrera <alvherre@commandprompt.com> 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
--- which is not a very strong argument, certainly, but the argument in
favor of changing seems even weaker.
        regards, tom lane

pgsql-hackers by date:

Previous
From: Alvaro Herrera
Date:
Subject: Re: [COMMITTERS] pgsql: Clamp last_anl_tuples to n_live_tuples, in case we vacuum a table
Next
From: "Luke Lonergan"
Date:
Subject: Re: Table clustering idea