On Thu, Jun 10, 2010 at 2:50 PM, Mike Christensen <mike@xxxxxxxxxxxxx> wrote: > I have a column called "email" that users login with, thus I need to > be able to lookup email very quickly. The problem is, emails are > case-insensitive. I want foo@xxxxxxx to be able to login with > FOO@xxxxxxx as well. There's two ways of doing this, that I can see: > > 1) Every time I lookup an email in the database, do a case-insensitive > ilike, or cast both sides with LOWER(). I think both are slow, > correct? > 2) Every time the user updates or saves their email, store it in > lowercase, and every time I lookup an email, pass in a lowercase > email. This is somewhat of a bug farm because one might miss some > little spot in a piece of code where an email is compared or updated. > > Is there any way to tell postgres to always store data in lowercase > form, or just have a flat out case-insensitive column? Thanks! Note the other option is to store an index on lower(column) create index mycaseinsensitiveindex on table ((lower(column)); -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
