diff options
Diffstat (limited to 'mysql-test/r/group_min_max.result')
| -rw-r--r-- | mysql-test/r/group_min_max.result | 104 |
1 files changed, 102 insertions, 2 deletions
diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result index d1faec7f758..cc7c9c4d364 100644 --- a/mysql-test/r/group_min_max.result +++ b/mysql-test/r/group_min_max.result @@ -1714,7 +1714,7 @@ explain extended select distinct a1,a2,b,c from t1 where (a2 >= 'b') and (b = 'a id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 index NULL idx_t1_1 163 NULL 128 50.78 Using where; Using index Warnings: -Note 1003 select distinct `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`c` = 'i121') and (`test`.`t1`.`b` = 'a') and (`test`.`t1`.`a2` >= 'b')) +Note 1003 select distinct `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`b` = 'a') and (`test`.`t1`.`c` = 'i121') and (`test`.`t1`.`a2` >= 'b')) explain select distinct a1,a2,b from t1 where (a1 > 'a') and (a2 > 'a') and (b = 'c'); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range idx_t1_0,idx_t1_1,idx_t1_2 idx_t1_1 147 NULL 14 Using where; Using index for group-by @@ -1731,7 +1731,7 @@ explain extended select distinct a1,a2,b,c from t2 where (a2 >= 'b') and (b = 'a id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t2 index NULL idx_t2_1 163 NULL 164 50.61 Using where; Using index Warnings: -Note 1003 select distinct `test`.`t2`.`a1` AS `a1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where ((`test`.`t2`.`c` = 'i121') and (`test`.`t2`.`b` = 'a') and (`test`.`t2`.`a2` >= 'b')) +Note 1003 select distinct `test`.`t2`.`a1` AS `a1`,`test`.`t2`.`a2` AS `a2`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where ((`test`.`t2`.`b` = 'a') and (`test`.`t2`.`c` = 'i121') and (`test`.`t2`.`a2` >= 'b')) explain select distinct a1,a2,b from t2 where (a1 > 'a') and (a2 > 'a') and (b = 'c'); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 range idx_t2_0,idx_t2_1,idx_t2_2 idx_t2_1 146 NULL # Using where; Using index for group-by @@ -3187,6 +3187,106 @@ a b drop table t1; End of 5.1 tests # +# MDEV-765 lp:825075 - Wrong result with GROUP BY + multipart key + MIN/MAX loose scan +# +CREATE TABLE t1 (a varchar(1), b varchar(1), KEY (b,a)); +INSERT INTO t1 VALUES +('0',NULL),('9',NULL),('8','c'),('4','d'),('7','d'),(NULL,'f'), +('7','f'),('8','g'),(NULL,'j'); +explain +SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index b b 8 NULL 9 Using where; Using index +SELECT max(a) , b FROM t1 WHERE a IS NULL OR b = 'z' GROUP BY b; +max(a) b +NULL f +NULL j +explain +SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index b b 8 NULL 9 Using where; Using index +SELECT b, min(a) FROM t1 WHERE a = '7' OR b = 'z' GROUP BY b; +b min(a) +d 7 +f 7 +explain +SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index b b 8 NULL 9 Using where; Using index +SELECT b, min(a) FROM t1 WHERE (a = b OR b = 'd' OR b is NULL) GROUP BY b; +b min(a) +NULL 0 +d 4 +explain +SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref b b 4 const 1 Using where; Using index +SELECT b, min(a) FROM t1 WHERE a > ('0' = b) AND b = 'z' GROUP BY b; +b min(a) +explain +SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL b 8 NULL 9 Using where; Using index +SELECT b, min(a) FROM t1 WHERE a > '0' AND (b < (a = '7')) GROUP BY b; +b min(a) +d 7 +f 7 +Warnings: +Warning 1292 Truncated incorrect DOUBLE value: 'c' +Warning 1292 Truncated incorrect DOUBLE value: 'd' +Warning 1292 Truncated incorrect DOUBLE value: 'd' +Warning 1292 Truncated incorrect DOUBLE value: 'f' +Warning 1292 Truncated incorrect DOUBLE value: 'g' +explain +SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index b b 8 NULL 9 Using where; Using index +SELECT b, min(a) FROM t1 WHERE (a > '0' AND (a > '1' OR b = 'd')) GROUP BY b; +b min(a) +NULL 9 +c 8 +d 4 +f 7 +g 8 +drop table t1; +# +# MDEV-4140 Wrong result with GROUP BY + multipart key + MIN/MAX loose scan and a subquery +# +CREATE TABLE t1 (a int, b int, KEY (b, a)) ; +INSERT INTO t1 VALUES (0,99),(9,99),(4,0),(7,0),(99,0),(7,0),(8,0),(99,0),(1,0); +CREATE TABLE t2 (c int) ; +INSERT INTO t2 VALUES (0),(1); +EXPLAIN +SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range NULL b 10 NULL 10 Using where; Using index for group-by +SELECT MIN(a), b FROM t1 WHERE a > 0 GROUP BY b; +MIN(a) b +1 0 +9 99 +EXPLAIN +SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 range NULL b 10 NULL 10 Using where; Using index for group-by +2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +SELECT MIN(a), b FROM t1 WHERE a > ( SELECT c FROM t2 WHERE c = 0 ) GROUP BY b; +MIN(a) b +1 0 +9 99 +EXPLAIN +SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 index NULL b 10 NULL 9 Using where; Using index +2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 SUBQUERY t1a index NULL b 10 NULL 9 Using index; Using join buffer (flat, BNL join) +2 SUBQUERY t1b index NULL b 10 NULL 9 Using index; Using join buffer (incremental, BNL join) +SELECT MIN(a), b FROM t1 WHERE a > ( SELECT min(c) FROM t2, t1 t1a, t1 t1b WHERE c = 0 ) GROUP BY b; +MIN(a) b +1 0 +9 99 +drop table t1, t2; +End of 5.3 tests +# # WL#3220 (Loose index scan for COUNT DISTINCT) # CREATE TABLE t1 (a INT, b INT, c INT, KEY (a,b)); |