On Wed, 2005-06-01 at 08:22 +0200, Philippe Lang wrote: > What is the best way to calculate an MD5 Sum for a set of rows in a > table, on a Postgresql server? The md5() builtin function. contrib/pgcrypto is available if you need more sophisticated hashing / encryption. -Neil ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq