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_20 ( year VARCHAR, weight VARCHAR, home_town VARCHAR )

### Question ###
What is the Year of the Player with a Weight of 230 or less from San Antonio, Texas?

### Accurate SQL ###

SELECT year FROM table_name_20 WHERE weight < 230 AND home_town = "san antonio, texas"