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Merge.

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This commit is contained in:
Igor Babaev
2014-04-22 14:43:13 -07:00
parent ed93e55bac 3e0f63c18f
commit bcf16fa612
8 changed files with 49 additions and 26 deletions
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2
mysql-test/r/distinct.result
View File

@ -756,7 +756,7 @@ INSERT INTO t1(a, b, c) VALUES (1, 1, 1),
(1, 2, 3);
EXPLAIN SELECT DISTINCT a, b, d, c FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL a 16 NULL 7 Using index for group-by
1 SIMPLE t1 index NULL a 16 NULL 6 Using index
SELECT DISTINCT a, b, d, c FROM t1;
a b d c
1 1 0 1

6
mysql-test/r/func_group_innodb.result
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@ -236,12 +236,14 @@ SET storage_engine=@old_engine;
#
CREATE TABLE t1(a BLOB, b VARCHAR(255) CHARSET LATIN1, c INT,
KEY(b, c, a(765))) ENGINE=INNODB;
INSERT INTO t1(a, b, c) VALUES ('', 'a', 0), ('', 'a', null), ('', 'a', 0);
INSERT INTO t1(a, b, c) VALUES
('', 'a', 0), ('', 'a', null), ('', 'a', 0), ('', 'a', null), ('', 'a', 0);
ANALYZE TABLE t1;
SELECT MIN(c) FROM t1 GROUP BY b;
MIN(c)
0
EXPLAIN SELECT MIN(c) FROM t1 GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL b 263 NULL 4 Using index for group-by
1 SIMPLE t1 range NULL b 263 NULL 3 Using index for group-by
DROP TABLE t1;
End of 5.5 tests

12
mysql-test/r/group_by.result
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@ -1524,7 +1524,7 @@ id select_type table type possible_keys key key_len ref rows Extra
EXPLAIN SELECT a FROM t1 FORCE INDEX FOR JOIN (i2)
FORCE INDEX FOR GROUP BY (i2) GROUP BY a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL i2 4 NULL 145 Using index for group-by
1 SIMPLE t1 index NULL i2 9 NULL 144 Using index
EXPLAIN SELECT a FROM t1 USE INDEX () IGNORE INDEX (i2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 144
@ -1957,12 +1957,12 @@ UNIQUE INDEX idx (col1));
INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),
(11),(12),(13),(14),(15),(16),(17),(18),(19),(20);
EXPLAIN SELECT col1 AS field1, col1 AS field2
FROM t1 GROUP BY field1, field2+0;;
FROM t1 GROUP BY field1, field2;;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL idx 5 NULL 20 Using index; Using temporary; Using filesort
1 SIMPLE t1 index NULL idx 5 NULL 20 Using index
FLUSH STATUS;
SELECT col1 AS field1, col1 AS field2
FROM t1 GROUP BY field1, field2+0;;
FROM t1 GROUP BY field1, field2;;
field1 field2
1 1
2 2
@ -1986,7 +1986,7 @@ field1 field2
20 20
SHOW SESSION STATUS LIKE 'Sort_scan%';
Variable_name Value
Sort_scan 1
Sort_scan 0
EXPLAIN SELECT SQL_BIG_RESULT col1 AS field1, col1 AS field2
FROM t1 GROUP BY field1, field2;;
id select_type table type possible_keys key key_len ref rows Extra
@ -2320,7 +2320,7 @@ a int,
b varchar(1),
KEY (b,a)
);
INSERT INTO t1 VALUES (1,NULL),(0,'a');
INSERT INTO t1 VALUES (1,NULL),(0,'a'),(1,NULL),(0,'a');
EXPLAIN SELECT SQL_BUFFER_RESULT MIN(a), b FROM t1 WHERE t1.b = 'a' GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra

12
mysql-test/r/group_min_max.result
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@ -1,6 +1,6 @@
drop table if exists t1;
create table t1 (
a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' '
a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(248) default ' '
);
insert into t1 (a1, a2, b, c, d) values
('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'),
@ -43,7 +43,7 @@ Table Op Msg_type Msg_text
test.t1 analyze status Table is already up to date
drop table if exists t2;
create table t2 (
a1 char(64), a2 char(64) not null, b char(16), c char(16), d char(16), dummy char(64) default ' '
a1 char(64), a2 char(64) not null, b char(16), c char(16), d char(16), dummy char(248) default ' '
);
insert into t2 select * from t1;
insert into t2 (a1, a2, b, c, d) values
@ -2649,6 +2649,7 @@ DROP TABLE t1;
CREATE TABLE t (a INT, b INT, INDEX (a,b));
INSERT INTO t VALUES (2,0), (2,0), (2,1), (2,1);
INSERT INTO t SELECT * FROM t;
INSERT INTO t SELECT * FROM t;
# test MIN
#should use range with index for group by
EXPLAIN
@ -3281,6 +3282,7 @@ drop table t1;
#
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);
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
@ -3303,10 +3305,10 @@ MIN(a) b
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
1 PRIMARY t1 index NULL b 10 NULL 18 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)
2 SUBQUERY t1a index NULL b 10 NULL 18 Using index; Using join buffer (flat, BNL join)
2 SUBQUERY t1b index NULL b 10 NULL 18 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