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From: Erik Wienhold <ewie@ewie.name>
To: kaido vaikla <kaido.vaikla@gmail.com>
To: pgsql-admin@postgresql.org
Subject: Re: pg_stat_activity query_id
Date: Thu, 11 May 2023 15:46:31 +0200 (CEST)
Message-ID: <472115375.225506.1683812791906@office.mailbox.org> (raw)
In-Reply-To: <CA+427g8qBArPuqwZOuYVhdoCQUsdbutR18fG7Gt7+3JunuHsjA@mail.gmail.com>
References: <CA+427g8qBArPuqwZOuYVhdoCQUsdbutR18fG7Gt7+3JunuHsjA@mail.gmail.com>

> On 11/05/2023 11:11 CEST kaido vaikla <kaido.vaikla@gmail.com> wrote:
>
> Question, when or why query_id in pg_stat_activity is not present
>
>
> postgres=# select version();
>  version
> ---------------------------------------------------------------------------------------------------------
>  PostgreSQL 15.1 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
> (1 row)
>
> postgres=# select user;
>  user
> ----------
>  postgres
> (1 row)
>
> postgres=# show compute_query_id;
>  compute_query_id
> ------------------
>  on
> (1 row)
>
> postgres=# select application_name, query_id from pg_stat_activity order by 1;
>  application_name       | query_id
> ------------------------+---------------------
>                         |
>                         |
>                         |
>                         |
>                         |
>  barman_receive_wal     |
>  IntelliJ IDEA 2023.1.1 |
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>  psql                   | 3408001232671049700
> (61 rows)

The reason could be any of the following:

* no query executed yet
* compute_query_id=off
* compute_query_id=auto and pg_stat_statements (or any other module that
  calculates query_id) is not loaded

--
Erik

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  Subject: Re: pg_stat_activity query_id
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