Who was the champion earlier than 1978 when the runner-up was Jimmy Connors?
CREATE TABLE table_name_90 (champion VARCHAR, runner_up VARCHAR, year VARCHAR)
SELECT champion FROM table_name_90 WHERE runner_up = "jimmy connors" AND year < 1978
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_90 (champion VARCHAR, runner_up VARCHAR, year VARCHAR) Question: Who was the champion earlier than 1978 when the runner-up was Jimmy Connors? [/INST] SELECT champion FROM table_name_90 WHERE runner_up = "jimmy connors" AND year < 1978 </s>