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Re: Question on STABLE functions limitations - Mailing list pgsql-general

From Tom Lane
Subject Re: Question on STABLE functions limitations
Date
Msg-id 19012.1287411508@sss.pgh.pa.us
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In response to Question on STABLE functions limitations  ("Marc Mamin" <M.Mamin@intershop.de>)
List pgsql-general
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"Marc Mamin" <M.Mamin@intershop.de> writes:
> I wonder if there are some special cases where STABLE functions should
> be avoided.

> I think for example of functions using set_config or querying the
> advisory locks.

set_config has side-effects and hence should not be done in non-volatile
functions.

            regards, tom lane

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