Re: auto_explain WAS: RFC: Timing Events

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Jim Nasby <jim(at)nasby(dot)net>
Cc: Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>, Greg Smith <greg(at)2ndquadrant(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: auto_explain WAS: RFC: Timing Events
Date: 2013-02-25 20:26:04
Message-ID: CA+TgmoYmfczh4mV-A=1shPyFc7KO9LvNL8NAoUL50yAZUoKadA@mail.gmail.com
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On Sun, Feb 24, 2013 at 7:27 PM, Jim Nasby <jim(at)nasby(dot)net> wrote:
> We actually do that in our application and have discovered that random
> sampling can end up significantly skewing your data.

/me blinks.

How so?

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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