Re: Performance

From: Andreas Kretschmer <andreas(at)a-kretschmer(dot)de>
To: pgsql-performance(at)lists(dot)postgresql(dot)org
Subject: Re: Performance
Date: 2018-02-23 21:20:15
Message-ID: 04a2e637-0d72-d069-c2ee-7cee12eec90a@a-kretschmer.de
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Am 23.02.2018 um 20:29 schrieb Daulat Ram:
> We have the following requirements in single query or any proper solution. Please help on this.
> How many sessions are currently opened.
ask pg_stat_activity, via select * from pg_stat_activity

> -and if opened then how many queries have executed on that session.

Whot? There isn't a counter for that, AFAIK.

> -and also we have to trace how much time each query is taking.

You can use auto_explain for that

> -and also we have to find the cost of each query.

the same, auto_explain

please keep in mind: costs are imaginary.

Regards, Andreas

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