CREATE TABLE table_name_97 (draws INTEGER, points VARCHAR(255), goal_difference VARCHAR(255), goals_against VARCHAR(255))
What is the average Draws, when Goal Difference is greater than -3, when Goals Against is 30, and when Points is greater than 45?
    
SQL: SELECT AVG(draws) FROM table_name_97 WHERE goal_difference > -3 AND goals_against = 30 AND points > 45