Re: minor patch submission: CREATE CAST ... AS EXPLICIT

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: Fabien COELHO <coelho@cri.ensmp.fr>, PostgreSQL Developers <pgsql-hackers@postgresql.org>
Date: 2011-05-24T21:13:11Z
Lists: pgsql-hackers
Peter Eisentraut <peter_e@gmx.net> writes:
> On lr, 2011-05-21 at 15:46 +0200, Fabien COELHO wrote:
>> From a language definition perspective, it is helpful to have a name for 
>> every case instead of an implicit fallback, without any word to describe 
>> it. See for instance "CREATE USER CREATEDB/NOCREATEDB" or "CREATE RULE ... 
>> DO ALSO/INSTEAD" for similar occurences of naming default cases.

> Oddly enough, we did add the DO ALSO syntax much later, and no one
> complained about that, as far as I recall.

Sure, but CREATE RULE is entirely locally-grown syntax, so there is no
argument from standards compliance to consider there.

			regards, tom lane