Re: pg_freespacemap question

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: pg_freespacemap question
Date: 2006-03-07 14:37:51
Message-ID: 20060307143751.GF4307@surnet.cl
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Peter Eisentraut wrote:
> Am Dienstag, 7. März 2006 15:09 schrieb Tatsuo Ishii:
> > test=# select * from pg_freespacemap where blockfreebytes = 0;
> > blockid | relfilenode | reltablespace | reldatabase | relblocknumber | blockfreebytes
> > ---------+-------------+---------------+-------------+----------------+----------------
> > 25 | 2619 | 1663 | 16403 | 0 | 0
> > 63 | 2619 | 1663 | 16384 | 10 | 0
> > (2 rows)
>
> I've never heard of this thing before but is this column order supposed to make sense?

I have another question -- why is the view showing relfilenode and
reltablespace? I imagine it should be showing the relation Oid instead.
And what is this "blockid" thing?

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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