ratio = 1398.32932400932; time0 = 3.57558298110962 sec; time1 = 0.00255703926086426 sec; query:  DELETE FROM `A` WHERE `col_int_key` = 6 AND `col_varchar_10_key` IS  NULL ORDER BY `pk` LIMIT 4
ratio = 1828.82111959288; time0 = 3.4271559715271 sec; time1 = 0.00187397003173828 sec; query: UPDATE `A` SET `col_int_key` = 2 WHERE `col_varchar_10_key` NOT BETWEEN 'f' AND 'z' ORDER BY `pk` DESC
ratio = 1.97122633178595; time0 = 3.46467876434326 sec; time1 = 1.75762605667114 sec; query:  UPDATE `A` SET `col_varchar_10_key` = 'p' WHERE `col_int_key` >= 1 AND `col_int_key` < ( 6 + 1 ) ORDER BY `pk` LIMIT 2
ratio = 2173.07681365576; time0 = 2.91380500793457 sec; time1 = 0.00134086608886719 sec; query: UPDATE `A` SET `col_int_key` = 6 WHERE `col_varchar_10_key` IS  NULL ORDER BY `pk` DESC LIMIT 1
ratio = 2223.96458498024; time0 = 3.35373306274414 sec; time1 = 0.00150799751281738 sec; query: UPDATE `A` SET `col_int_key` = 2 WHERE `col_int_key` > 2 AND `col_int_key` < ( 2 + 5 ) ORDER BY `pk` DESC
ratio = 2428.86015873016; time0 = 3.64823794364929 sec; time1 = 0.00150203704833984 sec; query: UPDATE `A` SET `col_int_key` = 9 WHERE `col_varchar_10_key` >= 'z' AND `col_varchar_10_key` <= 'z' ORDER BY `pk` DESC LIMIT 9
ratio = 2537.14034205231; time0 = 3.60763192176819 sec; time1 = 0.00142192840576172 sec; query: UPDATE `A` SET `col_varchar_10_key` = 'k' WHERE `col_int_key` > 0 AND `col_int_key` < ( 0 + 2 ) ORDER BY `pk` DESC LIMIT 8
ratio = 2710.71286247999; time0 = 3.63276410102844 sec; time1 = 0.00134015083312988 sec; query: UPDATE `A` SET `col_int_key` = 4 WHERE `col_varchar_10_key` >= 'y' AND `col_varchar_10_key` <= 'z' AND `col_int_key`  BETWEEN 4 AND (4 + 7 ) ORDER BY `pk` DESC LIMIT 8
ratio = 2714.77225232198; time0 = 3.34499907493591 sec; time1 = 0.00123214721679688 sec; query: UPDATE `A` SET `col_varchar_10_key` = 'm' WHERE `col_varchar_10_key`  LIKE ( 'know' ) ORDER BY `pk` ASC
ratio = 2915.49687322342; time0 = 3.66808819770813 sec; time1 = 0.00125813484191895 sec; query: UPDATE `A` SET `col_int_key` = 1 WHERE `col_varchar_10_key` > 'q' AND `col_varchar_10_key` < 'z' ORDER BY `pk` DESC
ratio = 2929.27351555137; time0 = 3.70497608184814 sec; time1 = 0.00126481056213379 sec; query: UPDATE `A` SET `col_varchar_10_key` = 'b' WHERE `col_varchar_10_key` > 'SFSQY' AND `col_varchar_10_key` <= 't' ORDER BY `pk` DESC LIMIT 9
ratio = 344.652534791252; time0 = 3.30658388137817 sec; time1 = 0.00959396362304688 sec; query: UPDATE `A` SET `col_varchar_10_key` = 'd' WHERE `col_int_key` >= 5 AND `col_int_key` < ( 3 + 10 ) ORDER BY `pk` DESC
ratio = 38.7236597045785; time0 = 3.37581396102905 sec; time1 = 0.087177038192749 sec; query: UPDATE `A` SET `col_int_key` = 4 WHERE `col_int_key`  BETWEEN 4 AND (4 + 6 ) ORDER BY `pk` DESC LIMIT 1
ratio = 395.872329731088; time0 = 3.37996101379395 sec; time1 = 0.00853800773620605 sec; query: UPDATE `A` SET `col_varchar_10_key` = 'j' WHERE `col_varchar_10_key`  LIKE ( 'd' ) ORDER BY `pk` ASC
ratio = 7.9765004711934; time0 = 3.63645386695862 sec; time1 = 0.455895900726318 sec; query:  UPDATE `A` SET `col_varchar_10_key` = 'p' WHERE `col_varchar_10_key`  LIKE ( 'n' ) ORDER BY `pk` LIMIT 1