On Tue, Jul 28, 2009 at 11:15 AM, Andreas Wenk<a.wenk@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > Kevin Kempter schrieb: >> >> Can I use a check constraint, or something other than a function to force >> a column to be lowercase only? >> >> >> Thx in advance > > try to use regexp in your CHECK CONSTRAINT: > > CHECK (column::bpchar ~ '^[a-z]+$'::bpchar::text) Better would be CHECK (column = tolower(column)) which won't fail on non-letters and will work in non-C locales -- greg http://mit.edu/~gsstark/resume.pdf -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
