On Wed, Apr 7, 2010 at 10:30 PM, Warren Bell <warrenbell2@xxxxxxxxx> wrote: > Is there a way to create a unique constraint based on the content of a > field? For instance, say you have an integer field where you only want one > record with the number 1 in that field but there can be many records with > say the number 2 or any other single number in that field. > create unique index unique_field_idx on table1(field) where field = 1; -- Atentamente, Jaime Casanova Soporte y capacitación de PostgreSQL Asesoría y desarrollo de sistemas Guayaquil - Ecuador Cel. +59387171157 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
