Tom Lane wrote: > Peter Eisentraut <[EMAIL PROTECTED]> writes: > > As previously mentioned, AS is already used by the SQL standard for > > a different purpose in this context. > > Hm? [ reads spec ... ] Oh, you mean <generalized expression>. > Does that actually do anything useful? It looks like it's just > a random shortcut for a CAST expression in a parameter list.
I imagine that since a function call is the only place where the exact type of a datum really matters and is also ambiguous in general (under strict SQL rules, of course), they devised an abbreviated casting syntax for it. In any case, we shouldn't use the syntax for something else. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org
