On Sun, Sep 26, 2010 at 10:15:00AM -0400, Tom Lane wrote:
> David Fetter <david@fetter.org> writes:
> > On Fri, Sep 24, 2010 at 05:22:15PM -0400, Tom Lane wrote:
> >> period() might be immutable, but those casts from date to
> >> timestamptz are not, because they depend on the TimeZone
> >> parameter.
>
> > How hard would it be to point out the first expression found to be
> > mutable?
>
> I looked at that yesterday. It would take significant restructuring
> of the code involved :-( ... the place that throws the error doesn't
> know exactly what subnode was found to be mutable, and IIRC it
> hasn't got access to the original command string anyway.
How much restructuring are we talking about here?
Cheers,
David.
--
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