Re: COPY and Volatile default expressions

From: Jaime Casanova <jaime(at)2ndquadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: COPY and Volatile default expressions
Date: 2013-04-15 20:32:29
Message-ID: CAJKUy5jYD+kwBA2oaA9WHdb5QFy3JSYFWkeZUv3cMG9qhWfgCg@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Mon, Apr 15, 2013 at 3:21 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> OTOH, the notion that a UUID generator doesn't touch *any* database
> state seems like it might be worth treating as a general function
> property: it's simple to understand and applies to a lot of other
> volatile functions such as random() and clock_timestamp().
>

Something like the NO SQL access indication mandated by sql standard?

http://www.postgresql.org/message-id/1267473390.7837.9.camel@vanquo.pezone.net

--
Jaime Casanova www.2ndQuadrant.com
Professional PostgreSQL: Soporte 24x7 y capacitación
Phone: +593 4 5107566 Cell: +593 987171157

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2013-04-15 20:33:46 Re: Query not using index for user defined type
Previous Message Jaime Casanova 2013-04-15 20:27:07 Re: Query not using index for user defined type