Ouch. My mistake. :( The copy had of course duplicate data sets, because I trapped errors during its creation and because of the missing 'WHERE 1=0'. Sorry, Peter -- GMX DSL SOMMER-SPECIAL: Surf & Phone Flat 16.000 für nur 19,99 ¿/mtl.!* http://portal.gmx.net/de/go/dsl -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin