Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_25740548_3 ( original_air_date VARCHAR, production_code VARCHAR )

### Question ###
How many original air dates are there for the episode with code CA210?

### Accurate SQL ###

SELECT COUNT(original_air_date) FROM table_25740548_3 WHERE production_code = "CA210"