mirror of
https://github.com/MariaDB/server.git
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78 lines
4.4 KiB
Plaintext
78 lines
4.4 KiB
Plaintext
drop table if exists t1;
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CREATE TABLE t1 (
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STRING_DATA char(255) default NULL,
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KEY string_data (STRING_DATA)
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) TYPE=MyISAM;
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INSERT INTO t1 VALUES ('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA');
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INSERT INTO t1 VALUES ('DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD');
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INSERT INTO t1 VALUES ('FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF');
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INSERT INTO t1 VALUES ('FGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG');
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INSERT INTO t1 VALUES ('HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH');
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INSERT INTO t1 VALUES ('WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW');
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a));
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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delete from t1 where (a & 1);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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drop table t1;
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create table t1 (a int not null auto_increment, b int not null, primary key (a), index(b));
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insert into t1 (b) values (1),(2),(2),(2),(2);
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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show index from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 a A 5 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status Table is already up to date
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show index from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 a A 5 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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drop table t1;
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create table t1 (a int not null, b int not null, c int not null, primary key (a),key(b)) type=myisam;
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insert into t1 values (3,3,3),(1,1,1),(2,2,2),(4,4,4);
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explain select * from t1 order by a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select * from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select * from t1 order by c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select a from t1 order by a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 index NULL PRIMARY 4 NULL 4 Using index
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explain select b from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 index NULL b 4 NULL 4 Using index
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explain select a,b from t1 order by b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4 Using filesort
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explain select a,b from t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4
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explain select a,b,c from t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 ALL NULL NULL NULL NULL 4
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drop table t1;
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