DELETE FROM table_with_duplicates AS T1 USING table_with_duplicates AS T2
WHERE
T1.column_1 = T2.column_1
AND T1.column_2 = T2.column_2
AND T1.column_3 = T2.column_3
AND T1.row_num < T2.row_num-- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
