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merge

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monty@hundin.mysql.fi
2002-01-16 01:08:29 +02:00
parent a4b012c2a6 4d10a0cb7e
commit bea12d761a
46 changed files with 840 additions and 247 deletions
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81
mysql-test/r/group_by.result
View File

@ -263,3 +263,84 @@ score count(*)
2 1
1 2
drop table t1;
CREATE TABLE t1 (a char(1));
INSERT INTO t1 VALUES ('A'),('B'),('A'),('B'),('A'),('B'),(NULL),('a'),('b'),(NULL),('A'),('B'),(NULL);
SELECT a FROM t1 GROUP BY a;
a
NULL
A
B
SELECT a,count(*) FROM t1 GROUP BY a;
a count(*)
NULL 3
A 5
B 5
SELECT a FROM t1 GROUP BY binary a;
a
NULL
A
B
a
b
SELECT a,count(*) FROM t1 GROUP BY binary a;
a count(*)
NULL 3
A 4
B 4
a 1
b 1
SELECT binary a FROM t1 GROUP BY 1;
binary a
NULL
A
B
a
b
SELECT binary a,count(*) FROM t1 GROUP BY 1;
binary a count(*)
NULL 3
A 4
B 4
a 1
b 1
SET SQL_BIG_TABLES=1;
SELECT a FROM t1 GROUP BY a;
a
NULL
A
B
SELECT a,count(*) FROM t1 GROUP BY a;
a count(*)
NULL 3
A 5
B 5
SELECT a FROM t1 GROUP BY binary a;
a
NULL
A
B
a
b
SELECT a,count(*) FROM t1 GROUP BY binary a;
a count(*)
NULL 3
A 4
B 4
a 1
b 1
SELECT binary a FROM t1 GROUP BY 1;
binary a
NULL
A
B
a
b
SELECT binary a,count(*) FROM t1 GROUP BY 1;
binary a count(*)
NULL 3
A 4
B 4
a 1
b 1
SET SQL_BIG_TABLES=0;
drop table t1;

26
mysql-test/r/heap.result
View File

@ -165,3 +165,29 @@ explain select * from t1 where btn="a" and new_col="a";
table type possible_keys key key_len ref rows Extra
t1 ref btn btn 11 const,const 10 where used
drop table t1;
CREATE TABLE t1 (
a int default NULL,
b int default NULL,
KEY a (a),
UNIQUE b (b)
) type=heap;
INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3);
SELECT * FROM t1 WHERE a=NULL;
a b
explain SELECT * FROM t1 WHERE a IS NULL;
table type possible_keys key key_len ref rows Extra
t1 ref a a 5 const 10 where used
SELECT * FROM t1 WHERE a<=>NULL;
a b
NULL 99
SELECT * FROM t1 WHERE b=NULL;
a b
explain SELECT * FROM t1 WHERE b IS NULL;
table type possible_keys key key_len ref rows Extra
t1 ref b b 5 const 1 where used
SELECT * FROM t1 WHERE b<=>NULL;
a b
99 NULL
INSERT INTO t1 VALUES (1,3);
Duplicate entry '3' for key 1
DROP TABLE t1;

1
mysql-test/r/null.result
View File

@ -40,7 +40,6 @@ insert into t1 values (null);
select * from t1 where x != 0;
x
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
indexed_field int default NULL,
KEY indexed_field (indexed_field)

8
mysql-test/r/order_by.result
View File

@ -286,15 +286,15 @@ a b c
1 NULL NULL
explain select * from t1 where a = 1 order by a desc, b desc;
table type possible_keys key key_len ref rows Extra
t1 ref a a 4 const 5 where used; Using index; Using filesort
t1 ref a a 4 const 5 where used; Using index
select * from t1 where a = 1 order by a desc, b desc;
a b c
1 3 b
1 1 b
1 1 b
1 1 NULL
1 1 b
1 1 b
1 NULL NULL
1 NULL b
1 NULL NULL
explain select * from t1 where a = 1 and b is null order by a desc, b desc;
table type possible_keys key key_len ref rows Extra
t1 ref a a 9 const,const 2 where used; Using index; Using filesort

23
mysql-test/t/group_by.test
View File

@ -243,3 +243,26 @@ select sql_big_result spid,sum(userid) from t1 group by spid desc;
explain select sql_big_result score,count(*) from t1 group by score desc;
select sql_big_result score,count(*) from t1 group by score desc;
drop table t1;
#
# Compare with hash keys
#
CREATE TABLE t1 (a char(1));
INSERT INTO t1 VALUES ('A'),('B'),('A'),('B'),('A'),('B'),(NULL),('a'),('b'),(NULL),('A'),('B'),(NULL);
SELECT a FROM t1 GROUP BY a;
SELECT a,count(*) FROM t1 GROUP BY a;
SELECT a FROM t1 GROUP BY binary a;
SELECT a,count(*) FROM t1 GROUP BY binary a;
SELECT binary a FROM t1 GROUP BY 1;
SELECT binary a,count(*) FROM t1 GROUP BY 1;
# Do the same tests with MyISAM temporary tables
SET SQL_BIG_TABLES=1;
SELECT a FROM t1 GROUP BY a;
SELECT a,count(*) FROM t1 GROUP BY a;
SELECT a FROM t1 GROUP BY binary a;
SELECT a,count(*) FROM t1 GROUP BY binary a;
SELECT binary a FROM t1 GROUP BY 1;
SELECT binary a,count(*) FROM t1 GROUP BY 1;
SET SQL_BIG_TABLES=0;
drop table t1;

22
mysql-test/t/heap.test
View File

@ -100,3 +100,25 @@ update t1 set new_col=btn;
explain select * from t1 where btn="a";
explain select * from t1 where btn="a" and new_col="a";
drop table t1;
#
# Test of NULL keys
#
CREATE TABLE t1 (
a int default NULL,
b int default NULL,
KEY a (a),
UNIQUE b (b)
) type=heap;
INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3);
SELECT * FROM t1 WHERE a=NULL;
explain SELECT * FROM t1 WHERE a IS NULL;
SELECT * FROM t1 WHERE a<=>NULL;
SELECT * FROM t1 WHERE b=NULL;
explain SELECT * FROM t1 WHERE b IS NULL;
SELECT * FROM t1 WHERE b<=>NULL;
--error 1062
INSERT INTO t1 VALUES (1,3);
DROP TABLE t1;

1
mysql-test/t/null.test
View File

@ -25,7 +25,6 @@ drop table t1;
# Test problem med index on NULL columns and testing with =NULL;
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
indexed_field int default NULL,
KEY indexed_field (indexed_field)