module ActiveRecord::Calculations
def distinct_select?(column_name)
def distinct_select?(column_name) column_name.is_a?(::String) && /\bDISTINCT[\s(]/i.match?(column_name) end
def distinct_select?(column_name) column_name.is_a?(::String) && /\bDISTINCT[\s(]/i.match?(column_name) end