On Thu, Jun 10, 2010 at 3:34 PM, Mike Christensen <mike@xxxxxxxxxxxxx> wrote: > From this site: > > http://developer.postgresql.org/pgdocs/postgres/citext.html > > I couldn't tell if you still had to create an index on the lower case > value. It seems that it basically mimics the WHERE LOWER(email) = > LOWER(?) method. Since this part is incredibly performance critical, > maybe I'm better off storing my data all in lowercase and keeping the > DB case sensitive. of course you'd still need an index. whether you store it lower case in regular text or mixed case in a citext, the db would need an index for good performance. But you wouldn't have to store a lower() index for citext, just an index. BTW, citext it new for 8.4, so it's probably not an option for you if you're on 8.3 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
