Who had the pole position in the Canadian Grand Prix? 
CREATE TABLE table_26258348_4 (pole_position VARCHAR, grand_prix VARCHAR)
SELECT pole_position FROM table_26258348_4 WHERE grand_prix = "Canadian grand_prix"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_26258348_4 (pole_position VARCHAR, grand_prix VARCHAR) Question: Who had the pole position in the Canadian Grand Prix?  [/INST] SELECT pole_position FROM table_26258348_4 WHERE grand_prix = "Canadian grand_prix" </s>