1SET DEFAULT_STORAGE_ENGINE='tokudb'; 2*** Bug #22169 *** 3DROP TABLE IF EXISTS z1; 4create table z1 (a int, b int, c int, d int, e int, primary key (c,d), key (a,b) clustering=yes); 5insert into z1 values (1,1,1,1,1), (1,2,3,4,5), (3,4,1,100,1),(3,4,1,2,3),(3,5,1,21,1),(7,8,4,2,6),(9,10,34,3,2); 6insert into z1 values (-1,-1,-1,-1,-1), (-1,-2,-3,-4,-5), (-3,-4,-1,-100,-1),(-3,-4,-1,-2,-3),(-3,-5,-1,-21,-1),(-7,-8,-4,-2,-6),(-9,-10,-34,-3,-2); 7select * from z1 group by a,b; 8a b c d e 9-9 -10 -34 -3 -2 10-7 -8 -4 -2 -6 11-3 -5 -1 -21 -1 12-3 -4 -1 -100 -1 13-1 -2 -3 -4 -5 14-1 -1 -1 -1 -1 151 1 1 1 1 161 2 3 4 5 173 4 1 2 3 183 5 1 21 1 197 8 4 2 6 209 10 34 3 2 21explain select a,b from z1 where a < 1; 22id select_type table type possible_keys key key_len ref rows Extra 231 SIMPLE z1 range a a 5 NULL 7 Using where; Using index 24select max(a) from z1 where a < 1; 25max(a) 26-1 27explain select a,b from z1 where a < 9; 28id select_type table type possible_keys key key_len ref rows Extra 291 SIMPLE z1 index a a 10 NULL 14 Using where; Using index 30select max(a) from z1 where a < 9; 31max(a) 327 33explain select a,b from z1 where a < 7; 34id select_type table type possible_keys key key_len ref rows Extra 351 SIMPLE z1 range a a 5 NULL 12 Using where; Using index 36select max(a) from z1 where a < 7; 37max(a) 383 39explain select a,b from z1 where a < 3; 40id select_type table type possible_keys key key_len ref rows Extra 411 SIMPLE z1 range a a 5 NULL 9 Using where; Using index 42select max(a) from z1 where a < 3; 43max(a) 441 45explain select max(b) from z1 where a = 1; 46id select_type table type possible_keys key key_len ref rows Extra 471 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away 48select max(b) from z1 where a = 1; 49max(b) 502 51explain select max(b) from z1 where a = 3; 52id select_type table type possible_keys key key_len ref rows Extra 531 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away 54select max(b) from z1 where a = 3; 55max(b) 565 57explain select max(b) from z1 where a = 9; 58id select_type table type possible_keys key key_len ref rows Extra 591 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away 60select max(b) from z1 where a = 9; 61max(b) 6210 63DROP TABLE z1; 64