"Bruno Wolff III" <bruno@xxxxxxxx> writes: > Also what value should I have used in a coalesce to guaranty still getting > the maximum? I would expect coalesce(coalesce(greatest(a,b),a),b) to do what you want. It's not terribly legible though and if a and b are subselects I would worry a little about the optimizer rerunning them unnecessarily. Perhaps coalesce(greatest(a,b), coalesce(a,b)) is more legible? -- Gregory Stark EnterpriseDB http://www.enterprisedb.com
