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From: Andreas Kretschmer <andreas@a-kretschmer.de>
To: pgsql-performance@lists.postgresql.org
Subject: Re: Performance
Date: Fri, 23 Feb 2018 22:20:15 +0100
Message-ID: <04a2e637-0d72-d069-c2ee-7cee12eec90a@a-kretschmer.de> (raw)
In-Reply-To: <SN6PR0102MB35033163A20AAFE86921E5989BCC0@SN6PR0102MB3503.prod.exchangelabs.com>
References: <SN6PR0102MB3503919BA19E31222A2E991F9BCC0@SN6PR0102MB3503.prod.exchangelabs.com>
	<20180223192638.GM2416@tamriel.snowman.net>
	<SN6PR0102MB35033163A20AAFE86921E5989BCC0@SN6PR0102MB3503.prod.exchangelabs.com>



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

-- 
2ndQuadrant - The PostgreSQL Support Company.
www.2ndQuadrant.com





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