2009/5/8 David Fetter <david@xxxxxxxxxx>: > On Fri, May 08, 2009 at 06:40:33PM -0300, Emanuel Calvo Franco wrote: >> >> I test it in the first time :) >> >> With the 'order by' it works well, but in 'theory' > > The theory under which you should operate is that the underlying > implementation only gives you the orderings you ask for. This way, > when other beneficial implementation changes happen, they will not > surprise you. :) Yeap. now it have more sense. Is a question of performance and to take notice of that. Cool. Thanks to all!, -- Emanuel Calvo Franco Sumate al ARPUG ! ( www.arpug.com.ar) ArPUG / AOSUG Member -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general