Re: Storing pg_stat_statements query texts externally, pg_stat_statements in core

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Storing pg_stat_statements query texts externally, pg_stat_statements in core
Date: 2014-01-22 21:38:13
Message-ID: 19886.1390426693@sss.pgh.pa.us
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Peter Geoghegan <pg(at)heroku(dot)com> writes:
> On Wed, Jan 22, 2014 at 1:22 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> BTW, have you got any sort of test scenario you could share for this
>> purpose? I'm sure I could build something, but if you've already
>> done it ...

> I simply ran the standard regression tests, and then straced a backend
> as it executed the pgss-calling query. I'm not sure that I've
> understood your question.

Hm, are there 5K distinct queries in the regression tests? I'd have
thought they weren't enough to fill a large pgss hash.

regards, tom lane

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