Re: Converting from MS Access field aliases

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: adamtaunowilliams(at)gmail(dot)com
Cc: sql pgsql <pgsql-sql(at)postgresql(dot)org>
Subject: Re: Converting from MS Access field aliases
Date: 2007-07-12 22:48:31
Message-ID: 13141.1184280511@sss.pgh.pa.us
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Adam Tauno Williams <adamtaunowilliams(at)gmail(dot)com> writes:
> On Thu, 2007-07-12 at 13:23 -0400, Tom Lane wrote:
>> chester c young <chestercyoung(at)yahoo(dot)com> writes:
>>> SELECT field1 / 2 AS foo,
>>> field2 * 2 AS bar,
>>> foo + bar AS total
>>> WHERE foo < 12;

>> This is not an "extension", it is *directly* contrary to both the letter
>> and spirit of the SQL standard.

> "AS" works in Informix, and I believe, in DB2 as well.

I can't speak to Informix, but I will bet a good lunch that it does not
work like that in DB2. DB2 is one of the more nearly
standard-conformant databases on the planet. (Or possibly it's the
other way around ... there seem to be a lot of IBMers on the committee.)

regards, tom lane

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