Re: [PATCHES] pg_freespacemap question - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [PATCHES] pg_freespacemap question
Date
Msg-id 200604262246.k3QMkIL20496@candle.pha.pa.us
Whole thread Raw
In response to Re: [PATCHES] pg_freespacemap question  (Mark Kirkwood <markir@paradise.net.nz>)
List pgsql-hackers
Patch applied.  Thanks.

---------------------------------------------------------------------------


Mark Kirkwood wrote:
> Mark Kirkwood wrote:
> > Tom Lane wrote:
> >
> >>
> >> I do notice a rather serious shortcoming of pg_freespacemap in its
> >> current incarnation, which is that it *only* shows you the per-page free
> >> space data, and not any of the information that would let you determine
> >> what the FSM is doing to filter the raw data.  The per-relation
> >> avgRequest and lastPageCount fields would be interesting for instance.
> >> Perhaps there should be a second view with one row per relation to
> >> carry the appropriate data.
> >>
> >
> > Ok - I did wonder about 2 views, but was unsure if the per-relation
> > stuff was interesting. Given that it looks like it is interesting, I'll
> > see about getting a second view going.
> >
>
> This patch implements the second view for FSM relations. I have renamed
> the functions and views to be:
>
> pg_freespacemap_relations
> pg_freespacemap_pages
>
> This patch depends on the previous one (which was called simply
> 'pg_freespacemap.patch').
>
> Cheers
>
> Mark

[ application/gzip is not supported, skipping... ]

>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Have you searched our list archives?
>
>                http://archives.postgresql.org

--
  Bruce Momjian   http://candle.pha.pa.us
  EnterpriseDB    http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: Catalog Access (was: [GENERAL] Concurrency problem
Next
From: "Jim C. Nasby"
Date:
Subject: Re: Catalog Access (was: [GENERAL] Concurrency problem