Originally Posted by qwertyjjj
couldn't the schema have precision and scale?
ie everything has to have something before the decimal place?
Unfortunately I'm no master of the schema, but logically I'm going to guess that this is not a "schema issue" as both those numbers are completely legitimate representations of "one half". You may need to write a little test example and see if there's a way to get a schema validation to fail one and accept the other.