Tiago Fernandes

     # Casts value (which is a String) to an appropriate instance.
      def type_cast(value)
        return nil if value.nil?
        puts "Class: #{type.clas...

Think that the bug is related with type_cast method in the schema_definitions.rb

If you create a second field rating2 of type float, and test Post.average(:rati...

Did a quick test with a fresh rails install and sqlite3, and the calculated value is different for columns of type integer and float.

Think this bug is related with the type cast of the calculated value. the activerecord tries to cast the value based on the type of the column.

If the rating co...