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_20948329_1 (legs_won VARCHAR)

### Question ###
How many 180s have legs won of 45?

### Accurate SQL ###

SELECT MAX(180 AS s) FROM table_20948329_1 WHERE legs_won = 45