which is the  maximun serie episode number when the millions of North American spectators is 3.14?
CREATE TABLE table_22580855_1 (series_no INTEGER, us_viewers__millions_ VARCHAR)
SELECT MAX(series_no) FROM table_22580855_1 WHERE us_viewers__millions_ = "3.14"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_22580855_1 (series_no INTEGER, us_viewers__millions_ VARCHAR) Question: which is the  maximun serie episode number when the millions of North American spectators is 3.14? [/INST] SELECT MAX(series_no) FROM table_22580855_1 WHERE us_viewers__millions_ = "3.14" </s>