Re: what is pg_stat_activity.query for idle connections ?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: David Gauthier <davegauthierpg(at)gmail(dot)com>
Cc: Postgres General <pgsql-general(at)postgresql(dot)org>
Subject: Re: what is pg_stat_activity.query for idle connections ?
Date: 2021-09-13 21:41:53
Message-ID: 534191.1631569313@sss.pgh.pa.us
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David Gauthier <davegauthierpg(at)gmail(dot)com> writes:
> 11.3 on linux
> I have a DB with a worrisome number of connections with
> pg_stat_activity.query = '/* DBD::Pg ping test v3.5.3 */', all of them with
> state='idle'. I have code that uses perl's ping method to ping the DB and
> I suspect this is the source. Is '/* DBD::Pg ping test v3.5.3 */' the last
> thing it did, but because it's idle now, it's actually doing nothing ?

Yes, exactly.

regards, tom lane

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