ppazos

DELIMITER $$
CREATE FUNCTION levenshtein_rto( s1 VARCHAR(255), s2 VARCHAR(255) )
    RETURNS FLOAT
    DETERMINISTIC
    BEGIN
        DECLARE s1_len, s2_len, i, j, c, c_temp, cost INT;
        DECLARE s1_char CHAR;
        -- max strlen=255
        DECLARE cv0, cv1 VARBINARY(256);