What is the average round of a player with an overall of 138?
CREATE TABLE table_name_23 (
    round INTEGER,
    overall VARCHAR
)
SELECT AVG(round) FROM table_name_23 WHERE overall = "138"
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: What is the average round of a player with an overall of 138? ### Input: CREATE TABLE table_name_23 (
    round INTEGER,
    overall VARCHAR
) ### Response: SELECT AVG(round) FROM table_name_23 WHERE overall = "138"