Re: STABLE functions

Hi,

On Sun, Apr 27, 2003 at 12:55:34AM -0400, Tom Lane wrote:
> The point at issue is that the "stable function" classification was
> defined and implemented to provide a semantically valid way of deciding
> whether it's safe to treat an expression as an indexscan qualifier.
> There is no code that attempts to do anything else with it.

Just out of curiosity: What would be an example where you can not treat
a stable function as a constant in a single sql query?


Thanks,
Joachim

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