Re: Range Types, constructors, and the type system - Mailing list pgsql-hackers

On Jun29, 2011, at 19:05 , David E. Wheeler wrote:
> I'm still not clear, though, on why the return type of range()
> should not be related to the types of its arguments. So
> 
>    range(1, 5)
> 
> Should return intrange, and
> 
>    range(1::int8, 5::int8)
> 
> Should return int8range, and
> 
>    range('foo', 'foooo')
> 
> Should return textrange.

Because there might be more than one range type for a
base type. Say there are two range types over text, one
with collation 'de_DE' and one with collation 'en_US'.
What would the type of range('foo', 'foooo')
be?

best regards,
Florian Pflug