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_name_73 (nickname VARCHAR, age___ma__ VARCHAR)

### Question ###
Name the nickname with age of 4.9

### Accurate SQL ###

SELECT nickname FROM table_name_73 WHERE age___ma__ = "4.9"