Richard Huxton wrote: > Well you can get closer: > > SELECT * FROM gdp WHERE (y1970+y1971+...+y2005) IS NOT NULL; > > This makes use of the fact that X+NULL = NULL I was going to suggest SELECT * FROM gdp WHERE NULL NOT IN (y1970, y1971, y1972); But that doesn't work. So I tried using ANY with IS NOT NULL, as according to the documentation "IN is equivalent to = ANY" ( http://www.postgresql.org/docs/8.2/static/functions-subquery.html#AEN13967). So maybe: SELECT * FROM gdp WHERE NULL IS NOT ANY(y1970, y1971, y1972); I get nothing but syntax errors... I remember trying to use ANY in the past and never got it to work... So, how do you use ANY with a fixed set of values (the way IN can)? And can this be used to solve the OP's problem without using tricks like summing NULL values? -- Alban Hertroys alban@xxxxxxxxxxxxxxxxx magproductions b.v. T: ++31(0)534346874 F: ++31(0)534346876 M: I: www.magproductions.nl A: Postbus 416 7500 AK Enschede // Integrate Your World // ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
