From: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
---|---|
To: | Bruce Momjian <bruce(at)momjian(dot)us> |
Cc: | vincent(dot)moreau(at)adeoservices(dot)com, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Mandatory AS keyword in SELECT statements |
Date: | 2008-01-04 15:52:22 |
Message-ID: | 20080104155222.GA9833@svana.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
On Fri, Jan 04, 2008 at 09:31:41AM -0500, Bruce Momjian wrote:
> Unfortunately, this is on our TODO list as something we are not planning
> to do:
>
> * Allow AS in "SELECT col AS label" to be optional (not wanted)
>
> Because we support postfix operators, it isn't possible to make AS
> optional and continue to use bison.
For reference, the problematic examples are:
SELECT a + b; -- Is this (a +) aliased to "b", or (a+b) with no alias
SELECT 'foo'::character varying -- Is "varying" an alias or part of the type name?
See this thread:
http://archives.postgresql.org/pgsql-hackers/2003-04/msg00436.php
Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> Those who make peaceful revolution impossible will make violent revolution inevitable.
> -- John F Kennedy
From | Date | Subject | |
---|---|---|---|
Next Message | Oleg Bartunov | 2008-01-04 15:54:32 | Re: tsearch2 headline options |
Previous Message | Jeff Larsen | 2008-01-04 15:22:30 | Re: Using syslog on pg for Windows |