Re: how much volatile is a function

From: Sergey Konoplev <sergey(dot)konoplev(at)postgresql-consulting(dot)com>
To: Anibal David Acosta <aa(at)devshock(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: how much volatile is a function
Date: 2012-07-12 18:55:27
Message-ID: CAL_0b1sbQJFZk2OGo5zNu9b1SFKoD1PiuGuN0mbLhGcjayooGQ@mail.gmail.com
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On Thu, Jul 12, 2012 at 10:38 PM, Anibal David Acosta <aa(at)devshock(dot)com> wrote:
> Does postgres re run the query on each function call, or has some kind of
> “flag” indicating that table as not been changed and return cached result of
> a previous call if the call has same parameters?

It does re-run it on each call.

--
Sergey Konoplev

a database architect, software developer at PostgreSQL-Consulting.com
http://www.postgresql-consulting.com

Jabber: gray(dot)ru(at)gmail(dot)com Skype: gray-hemp Phone: +79160686204

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