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From: Alena Rybakina <[email protected]>
To: jian he <[email protected]>
Cc: Ilia Evdokimov <[email protected]>
Cc: Andrei Zubkov <[email protected]>
Cc: Alena Rybakina <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: [email protected]
Subject: Re: Vacuum statistics
Date: Sun, 25 Aug 2024 19:06:51 +0300
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACJufxGkvk7bVeidQoEtUt=PsReQTMKFD1NeeM9u3cJ0TStm6Q@mail.gmail.com>
References: <[email protected]>
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	<[email protected]>
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	<[email protected]>
	<CACJufxHb_YGCp=pVH6DZcpk9yML+SueffPeaRbX2LzXZVahd_w@mail.gmail.com>
	<CACJufxE6yAP+jUm4_GyKp7gUCkzbuJ9HGB-rR=92_hcLLZ9KTg@mail.gmail.com>
	<[email protected]>
	<CACJufxGkvk7bVeidQoEtUt=PsReQTMKFD1NeeM9u3cJ0TStm6Q@mail.gmail.com>

On 22.08.2024 05:47, jian he wrote:
> On Wed, Aug 21, 2024 at 6:37 AM Alena Rybakina
> <[email protected]>  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.

Thank you for your work! I checked the patches and added your suggested 
changes to the new version of the patch here [0]. In my opinion, nothing 
was missing, but please take a look.

[0] 
https://www.postgresql.org/message-id/c4e4e305-7119-4183-b49a-d7092f4efba3%40postgrespro.ru

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

It needed to be used because of scanning objects from the other 
database, so we change the id of dbid temporary to achieve it.

You should snow that every part of this code was deleted.Now we can 
check information about tables and indexes from the current database.

> 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/[email protected]
Ok, no problem.

-- 
Regards,
Alena Rybakina
Postgres Professional:http://www.postgrespro.com
The Russian Postgres Company


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