Jeremy Blumenfeld ([EMAIL PROTECTED]) reports a bug with a severity of 1 The lower the number the more severe it is. Short Description Problems with avg on interval data type Long Description We have recently upgraded from 7.0.3 to 7.1 and a query which used to work is no longer working. The query does an avg on an interval column and now gets the error: ERROR: Bad interval external representation '0' We've reproduced this problem with other tables using an interval type. It can handle count, sum, but not avg. Sample Code No file was uploaded with this report ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html