On Tue, Dec 28, 2010 at 11:07:59PM +0000, Peter Geoghegan wrote: > On 28 December 2010 20:07, Peter Eisentraut <pete...@gmx.net> wrote: > > The phrase "common table expression" does not appear anywhere in the SQL > > standard. The standard uses the grammar symbol <with clause>. > > I think we're losing sight of the issue a bit here. > > No one is proposing that we call WITH queries common table > expressions. As I think we all agree, the term "WITH query" and > "common table expression" are not synonymous. A WITH query is > comprised of one or more common table expressions, plus a conventional > SELECT query.
As of 9.1, the thing appended to the CTE(s) can be a conventional DML query (SELECT, INSERT, UPDATE or DELETE). I'm hoping to expand this in future versions. :) > All that I'm asking is that we /specify/ that the "subqueries" > already mentioned in the docs are common table expressions. +1 Cheers, David. -- David Fetter <da...@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fet...@gmail.com iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
