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_21321935_2 ( date VARCHAR, pole_position VARCHAR )

### Question ###
When did Oliver Jarvis have pole position?

### Accurate SQL ###

SELECT date FROM table_21321935_2 WHERE pole_position = "Oliver Jarvis"