/ 0.0019 sec ~ 0.67 / 0.002 sec ~ 0.33 / 0.003 sec ~ 0.32 / 0.009 sec Python 2.7 SubMySQL ~ 0.09 / 0.0011 sec ~ 0.102 / 0.0011 sec ~ 0.09 / 0.001 sec ~ 0.18 / 0.005 sec Test SELECT * FROM a WHERE b='c' SELECT * FROM a WHERE b BETWEEN 'c' AND 'd' INSERT INTO passbook VALUES('a','b','c','d','e','f','g','h') CREATE TABLE a (b int(5) AUTO_INCREMENT, c date, d VARCHAR(255), e VARCHAR(255), f VARCHAR(255), g int(10), h int(10), i float(10,2), j VARCHAR(255), PRIMARY KEY (b)) ~ 1.54 / 0.003 sec ~ 0.09 / 0.001 sec SELECT * FROM (((((((SELECT col1 FROM t1) AS ttt))))))* * Query can not be derived in SubMySQL grammar