Re: Vacuum statistics

From: jian he <jian(dot)universality(at)gmail(dot)com>
To: Alena Rybakina <a(dot)rybakina(at)postgrespro(dot)ru>
Cc: Ilia Evdokimov <ilya(dot)evdokimov(at)tantorlabs(dot)com>, Andrei Zubkov <zubkov(at)moonset(dot)ru>, Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, a(dot)lepikhov(at)postgrespro(dot)ru
Subject: Re: Vacuum statistics
Date: 2024-08-22 02:47:00
Message-ID: CACJufxGkvk7bVeidQoEtUt=PsReQTMKFD1NeeM9u3cJ0TStm6Q@mail.gmail.com
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On Wed, Aug 21, 2024 at 6:37 AM Alena Rybakina
<a(dot)rybakina(at)postgrespro(dot)ru> wrote:
>
> We check it there: "tabentry->vacuum_ext.type != type". Or were you talking about something else?
>
> On 19.08.2024 12:32, jian he wrote:
>
> in pg_stats_vacuum
> if (type == PGSTAT_EXTVAC_INDEX || type == PGSTAT_EXTVAC_HEAP)
> {
> Oid relid = PG_GETARG_OID(1);
>
> /* Load table statistics for specified database. */
> if (OidIsValid(relid))
> {
> tabentry = fetch_dbstat_tabentry(dbid, relid);
> if (tabentry == NULL || tabentry->vacuum_ext.type != type)
> /* Table don't exists or isn't an heap relation. */
> PG_RETURN_NULL();
>
> tuplestore_put_for_relation(relid, rsinfo, tabentry);
> }
> else
> {
> }
>
>
> So for functions pg_stat_vacuum_indexes and pg_stat_vacuum_tables,
> it seems you didn't check "relid" 's relkind,
> you may need to use get_rel_relkind.
>
> --

hi.
I mentioned some points at [1],
Please check the attached patchset to address these issues.

there are four occurrences of "CurrentDatabaseId", i am still confused
with usage of CurrentDatabaseId.

also please don't top-post, otherwise the archive, like [2] is not
easier to read for future readers.
generally you quote first, then reply.

[1] https://postgr.es/m/CACJufxHb_YGCp=pVH6DZcpk9yML+SueffPeaRbX2LzXZVahd_w@mail.gmail.com
[2] https://postgr.es/m/78394e29-a900-4af4-b5ce-d6eb2d263fad@postgrespro.ru

Attachment Content-Type Size
v6-0002-minor-doc-change-to-make-build-successfuly.no-cfbot application/octet-stream 1.5 KB
v6-0001-minor-refactor-pg_stats_vacuum-and-sub-routine.no-cfbot application/octet-stream 4.5 KB
v6-0004-ensure-pg_stats_vacuum-object-is-either-relati.no-cfbot application/octet-stream 2.1 KB
v6-0003-refactor-regression-test.no-cfbot application/octet-stream 5.9 KB

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