Hi, I need to update field1 in table1, gathering data from field1 in table2. The following SELECT shows the data as it needs to be updated: SELECT a.field1 || regexp_replace(b.field1, '.*(mypattern)', e'. \\1') FROM table1 a JOIN table2 b USING (id) WHERE a.field1 NOT LIKE '%mypattern%' AND b.field1 LIKE '%mypattern%'; I am not sure how to translate this into an UPDATE statement for fiel1 in table1 efficiently. Any tips welcome. Cheers, -- Seb -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general