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_46 ( overall INTEGER, college VARCHAR, pick__number VARCHAR )

### Question ###
College of san diego state, and a Pick # smaller than 30 has what lowest overall?

### Accurate SQL ###

SELECT MIN(overall) FROM table_name_46 WHERE college = "san diego state" AND pick__number < 30