Tom Lane wrote:
>Is it really necessary to hack up the grammar for this? Seems like
>you should create ordinary functions to manipulate the datatype(s).
>If every datatype thought it could do this sort of thing, we'd have
>a completely unmanageable grammar.
>
>
>
Can we do variadic functions without hacking the grammar? My impression
was that we could not. Maybe we need a generic mechanism for that?
Peter said here (more or less uncontradicted) that hacking the grammar
would be required for these functions:
http://archives.postgresql.org/pgsql-hackers/2004-01/msg00758.php
cheers
andrew
