| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>, KONDO Mitsumasa <kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Add min and max execute statement time in pg_stat_statement |
| Date: | 2013-10-24 17:10:51 |
| Message-ID: | 5269549B.1070803@agliodbs.com |
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| Lists: | pgsql-hackers |
On 10/23/2013 08:52 PM, Alvaro Herrera wrote:
> Peter Geoghegan escribió:
>
>> I am interested in making it store richer statistics,
>> provided we're very careful about the costs. Every time those counters
>> are incremented, a spinlock is held.
>
> Hmm, now if we had portable atomic addition, so that we could spare the
> spinlock ...
Oh, sure, just take the *easy* way out. ;-)
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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