CREATE TABLE sale(Mont INT, sales INT)

LOAD DATA INFILE "moving_avg.csv"
INTO TABLE sale
FIELDS TERMINATED BY ","

SELECT Mont,avgs(3,sales)
FROM sale
     ASSUMING ASC Mont
INTO OUTFILE "moving_avg_output.csv"
FIELDS TERMINATED BY ";"

-- select Mont, mins(2,sales) from sale assuming desc Mont group by sales 
-- into outfile "flatten.csv"