If I have a table with fields A, B, C and D how could I do something such that if I insert values in fields A, B and C field D would be auto-filled with the value A||B||C? Just a pointer of where to begin looking is fine. Triggers? Copy ... From? Table or field definitions? thx -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general