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_28846752_4 ( runs INTEGER, highest_score VARCHAR )

### Question ###
How many runs are there when the highest score is 228*?

### Accurate SQL ###

SELECT MIN(runs) FROM table_28846752_4 WHERE highest_score = "228*"