What is the average Tie no when the date is Birmingham City?
CREATE TABLE table_name_22 (tie_no INTEGER, date VARCHAR)
SELECT AVG(tie_no) FROM table_name_22 WHERE date = "birmingham city"
### Context: CREATE TABLE table_name_22 (tie_no INTEGER, date VARCHAR) ### Question: What is the average Tie no when the date is Birmingham City? ### Answer: SELECT AVG(tie_no) FROM table_name_22 WHERE date = "birmingham city"