Re: immutable functions vs. join for lookups ? - Mailing list pgsql-performance

From Enrico Weigelt
Subject Re: immutable functions vs. join for lookups ?
Date
Msg-id 20050421192226.GB16548@nibiru.borg.metux.de
Whole thread Raw
In response to Re: immutable functions vs. join for lookups ?  (Jaime Casanova <systemguards@gmail.com>)
Responses Re: immutable functions vs. join for lookups ?  (Dawid Kuroczko <qnex42@gmail.com>)
List pgsql-performance
* Jaime Casanova <systemguards@gmail.com> wrote:

<snip>
> Even if your data never changes it *can* change so the function should
> be at most stable not immutable.

okay, the planner sees that the table could potentionally change.
but - as the dba - I'd like to tell him, this table *never* changes
in practise (or at most there will be an insert once a year)

isnt there any way to enforce the function to be really immutable ?


cu
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