| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Jehan-Guillaume (ioguix) de Rorthais" <ioguix(at)free(dot)fr> |
| Cc: | Tumasgiu Rossini <rossini(dot)t(at)gmail(dot)com>, Mariel Cherkassky <mariel(dot)cherkassky(at)gmail(dot)com>, pgsql-admin(at)lists(dot)postgresql(dot)org, pgsql-performance(at)lists(dot)postgresql(dot)org |
| Subject: | Re: pgstattupple vs pg_total_relation_size |
| Date: | 2019-01-30 14:46:49 |
| Message-ID: | 7399.1548859609@sss.pgh.pa.us |
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| Lists: | pgsql-admin pgsql-performance |
"Jehan-Guillaume (ioguix) de Rorthais" <ioguix(at)free(dot)fr> writes:
> On Wed, 30 Jan 2019 14:19:52 +0100
> Tumasgiu Rossini <rossini(dot)t(at)gmail(dot)com> wrote:
>> According to the doc [1],
>> pg_total_relation_size add toasted data *and* indexes to the mix.
> *and* FSM *and* VM.
Yeah. In this particular case, the other page presumably belongs to the
toast table's index, which will have a metapage even if the table is
empty.
regards, tom lane
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