Ladislav Lenart <lenartlad@xxxxxxxx> writes: > What happens if I issue UPDATE SET FROM... but with incomplete/buggy WHERE > condition and thus SEVERAL rows from the from_list match ONE row to update? Any given row will be updated at most once. However, the from_list row it gets updated against will be unpredictable, depending on the implementation of the join. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
