On Wed, Nov 4, 2009 at 2:11 PM, Tom Lane <[email protected]> wrote: > Richard Broersma <[email protected]> writes: >> Can anyone one explain why a "WITH RECURSIVE" query has the same >> results regardless whether UNION or UNION ALL is specified? > > Well, if the rows are all different anyway, UNION isn't going to > eliminate any ...
Okay thanks. I see that I need to spend more time with the on-line docs. -- Regards, Richard Broersma Jr. Visit the Los Angeles PostgreSQL Users Group (LAPUG) http://pugs.postgresql.org/lapug -- Sent via pgsql-sql mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
