Re: Issue executing query from container

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Eudald Valcàrcel Lacasa <eudald(dot)valcarcel(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Issue executing query from container
Date: 2020-07-14 21:51:38
Message-ID: 2961873.1594763498@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

=?UTF-8?Q?Eudald_Valc=C3=A0rcel_Lacasa?= <eudald(dot)valcarcel(at)gmail(dot)com> writes:
> I'm running a docker container that executes a php script running a
> sequence of queries.
> One of the queries gets stuck (takes more than 2 hours in execution,
> active in pg_stat_activity).
> The query is executed with a JOIN between a FOREIGN TABLE and a local table.

> Executing this query from the psql console takes less than 5 seconds to resolve.
> If I execute the query from the container created, manually, it
> resolves as well within 5 seconds.

> Can anyone guide me in a way I can troubleshoot what is causing the
> query to get stuck?

It's a very good bet that it's something about the query being
parameterized or not. You could try installing auto_explain to
compare the plans that are generated.

regards, tom lane

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Tom Lane 2020-07-14 22:06:04 Re: single table - fighting a seq scan
Previous Message Eudald Valcàrcel Lacasa 2020-07-14 20:25:07 Issue executing query from container