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merge with 4.0.9

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To get bug fixes for TCP/IP connections, FORCE INDEX and OPTIMIZE TABLE with NULL keys
This commit is contained in:
monty@mashka.mysql.fi
2003-01-09 03:55:26 +02:00
parent a101784930 2ea43f3c53
commit f8e660d88c
36 changed files with 601 additions and 197 deletions
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44
mysql-test/r/myisam.result
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@ -1,4 +1,4 @@
drop table if exists t1;
drop table if exists t1,t2;
CREATE TABLE t1 (
STRING_DATA char(255) default NULL,
KEY string_data (STRING_DATA)
@ -316,3 +316,45 @@ CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255));
ALTER TABLE t1 ADD INDEX t1 (a, b, c);
Specified key was too long. Max key length is 500
DROP TABLE t1;
CREATE TABLE t1 (a int not null, b int, c int, key(b), key(c), key(a,b), key(c,a));
INSERT into t1 values (0, null, 0), (0, null, 1), (0, null, 2), (0, null,3), (1,1,4);
create table t2 (a int not null, b int, c int, key(b), key(c), key(a));
INSERT into t2 values (1,1,1), (2,2,2);
optimize table t1;
Table Op Msg_type Msg_text
test.t1 optimize status OK
show index from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 b 1 b A 5 NULL NULL YES BTREE
t1 1 c 1 c A 5 NULL NULL YES BTREE
t1 1 a 1 a A 1 NULL NULL BTREE
t1 1 a 2 b A 5 NULL NULL YES BTREE
t1 1 c_2 1 c A 5 NULL NULL YES BTREE
t1 1 c_2 2 a A 5 NULL NULL BTREE
explain select * from t1,t2 where t1.a=t2.a;
table type possible_keys key key_len ref rows Extra
t1 ALL a NULL NULL NULL 5
t2 ALL a NULL NULL NULL 2 Using where
explain select * from t1,t2 force index(a) where t1.a=t2.a;
table type possible_keys key key_len ref rows Extra
t2 ALL a NULL NULL NULL 2
t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a;
table type possible_keys key key_len ref rows Extra
t2 ALL a NULL NULL NULL 2
t1 ref a a 4 t2.a 3
explain select * from t1,t2 where t1.b=t2.b;
table type possible_keys key key_len ref rows Extra
t2 ALL b NULL NULL NULL 2
t1 ref b b 5 t2.b 1 Using where
explain select * from t1,t2 force index(c) where t1.a=t2.a;
table type possible_keys key key_len ref rows Extra
t1 ALL a NULL NULL NULL 5
t2 ALL NULL NULL NULL NULL 2 Using where
explain select * from t1 where a=0 or a=2;
table type possible_keys key key_len ref rows Extra
t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1 force index (a) where a=0 or a=2;
table type possible_keys key key_len ref rows Extra
t1 range a a 4 NULL 4 Using where
drop table t1,t2;