On Tue, May 12, 2009 at 01:23:14PM +0800, Ow Mun Heng wrote: > | sum of count | sum_of_count_squared | qty | qty < 100 | qty < 500 | > > > I'm thinking of lumping them into 1 column via an array instead of into > 5 different columns. Not sure how to go about this, hence the email to > the list. The normal array constructor should work: SELECT ARRAY[MIN(v),MAX(v),AVG(v),STDEV(v)] FROM (VALUES (1),(3),(4)) x(v); Not sure why this is better than using separate columns though. Maybe a new datatype and a custom aggregate would be easier to work with? -- Sam http://samason.me.uk/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general