I'll see what I can do about expanding my requirements/test 
cases.  Casting was not in my original test cases.  
What else have I missed?  Copy domain gripes to [EMAIL PROTECTED]

--elein
[EMAIL PROTECTED]



On Sat, May 06, 2006 at 10:19:39PM -0400, Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > The error is coming from parse_expr.c::typecast_expression, and its call
> > to typenameTypeId().  I wish I understood how we do domains better to
> > fix this properly.  Anyone?
> 
> The reason the cast isn't found is that find_coercion_pathway() strips
> off the domains before it ever even looks in pg_cast.  We can't simply
> remove that logic without breaking things (notably, the ability to cast
> between a domain and its base type).  I think it would be a mistake to
> consider this behavior in isolation anyway --- it's fairly tightly tied
> to the way that domains are handled (or, mostly, ignored) in
> operator/function lookup.  See recent gripes from Elein.
> 
> If someone can put together a coherent proposal for how domains should
> be dealt with in operator/function resolution, I'm all ears.
> 
>                       regards, tom lane
> 
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