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 pilot ( Join_Year VARCHAR, Rank VARCHAR )

### Question ###
What is the joined year of the pilot of the highest rank?

### Accurate SQL ###

SELECT Join_Year FROM pilot ORDER BY Rank LIMIT 1