How many players with a position are listed for the 2009 season?
CREATE TABLE table_15463188_17 (
    position VARCHAR,
    season VARCHAR
)
SELECT COUNT(position) FROM table_15463188_17 WHERE season = "2009"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many players with a position are listed for the 2009 season? ### Input: CREATE TABLE table_15463188_17 (
    position VARCHAR,
    season VARCHAR
) ### Response: SELECT COUNT(position) FROM table_15463188_17 WHERE season = "2009"