Task: Text to Code
Input (English): Step 1: For each row in Ref_Characteristic_Types table, find the corresponding rows in Characteristics table.
Step 2: find the number of rows in the results of step 1 whose characteristic_name equals white or characteristic_type_description equals hot
Output (English): SELECT Count ( * ) FROM Ref_Characteristic_Types AS T1 JOIN Characteristics AS T2 ON T1.characteristic_type_code = T2.characteristic_type_code WHERE T2.characteristic_name = "white" OR T1.characteristic_type_description = "hot"