I'm trying to set up a CountIf expression, and I can't figure out how to set the query to find when a column value exists. When I put in a column name into the operator, the editor returns an "Unknown Field" error. It seems like the editor only accepts True/False expressions, but doesn't accept a column name by itself as a valid expression.
FYI my current solution has been to use the following equation: Count - CountIf(isnull([column]).
How hard can it be to just make a CountIf([column]) operator?