Re: Calculation of unused columns - Mailing list pgsql-performance

From Tom Lane
Subject Re: Calculation of unused columns
Date
Msg-id 9127.1255976625@sss.pgh.pa.us
Whole thread Raw
In response to Re: Calculation of unused columns  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-performance
Simon Riggs <simon@2ndQuadrant.com> writes:
> On Mon, 2009-10-19 at 13:58 -0400, Tom Lane wrote:
>> Most read-only functions are stable or even immutable.

> Huh? I mean a function that only contains SELECTs. (How would those ever
> be Stable or Immutable??)

Uh, a function containing SELECTs is exactly the use-case for STABLE.
Maybe you need to go re-read the definitions?

            regards, tom lane

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