When 20 is the rr4 points what is the lowest rr3 points?
CREATE TABLE table_21489362_2 (rr3_pts INTEGER, rr4_pts VARCHAR)
SELECT MIN(rr3_pts) FROM table_21489362_2 WHERE rr4_pts = "20"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_21489362_2 (rr3_pts INTEGER, rr4_pts VARCHAR) Question: When 20 is the rr4 points what is the lowest rr3 points? [/INST] SELECT MIN(rr3_pts) FROM table_21489362_2 WHERE rr4_pts = "20" </s>