What date was the Piston's record at 23-47?
CREATE TABLE table_22822559_8 (date VARCHAR, record VARCHAR)
SELECT date FROM table_22822559_8 WHERE record = "23-47"
### Context: CREATE TABLE table_22822559_8 (date VARCHAR, record VARCHAR) ### Question: What date was the Piston's record at 23-47? ### Answer: SELECT date FROM table_22822559_8 WHERE record = "23-47"