On Sep 9, 2009, at 8:39 AM, Tom Lane wrote:
Peter Eisentraut <pete...@gmx.net> writes:
Well, so far we've only seen use cases in this thread that either
already work or that are not well-defined. ;-)
Well, yeah, the question is can we extract a clear TODO item here.
I think there are two somewhat orthogonal issues:
1. Is a completely unconstrained argument type (ie "any") of any real
use to PL functions, and if so how can we expose that usefulness?
The only clear thing to do with such an argument is IS NULL/IS NOT
NULL
tests, which might or might not be worth the trouble.
Part of that should be providing a means to determine what the
underlying type of an "any" is. Having that would allow functions to
take actions appropriate to different types.
--
Decibel!, aka Jim C. Nasby, Database Architect deci...@decibel.org
Give your computer some brain candy! www.distributed.net Team #1828
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