Re: Add min and max execute statement time in pg_stat_statement

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: KONDO Mitsumasa <kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp>, Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add min and max execute statement time in pg_stat_statement
Date: 2014-01-27 22:01:36
Message-ID: 52E6D740.5080302@dunslane.net
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On 01/27/2014 04:37 PM, Peter Geoghegan wrote:
> On Mon, Jan 27, 2014 at 4:45 AM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
>> I personally don't give a tinker's cuss about whether the patch slows down
>> pg_stat_statements a bit.
> Why not? The assurance that the overhead is generally very low is what
> makes it possible to install it widely usually without a second
> thought. That's hugely valuable.
>
>

I care very much what the module does to the performance of all
statements. But I don't care much if selecting from pg_stat_statements
itself is a bit slowed. Perhaps I didn't express myself as clearly as I
could have.

cheers

andrew

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