How many positions are there in Canadian Nascar? 
CREATE TABLE table_23239946_3 (position INTEGER)
SELECT MAX(position) FROM table_23239946_3
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23239946_3 (position INTEGER) Question: How many positions are there in Canadian Nascar?  [/INST] SELECT MAX(position) FROM table_23239946_3 </s>