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https://github.com/MariaDB/server.git
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79 lines
2.7 KiB
Text
79 lines
2.7 KiB
Text
drop table if exists t1,t2;
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create table t1 (a tinyint not null auto_increment, b blob not null, primary key (a)) type=isam;
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delete from t1 where (a & 1);
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select sum(length(b)) from t1;
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sum(length(b))
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3274494
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drop table t1;
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create table t1 (a int not null auto_increment,b int, primary key (a)) type=isam;
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insert into t1 values (1,1),(NULL,2),(3,3),(NULL,4);
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delete from t1 where a=4 or a=2;
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insert into t1 values (NULL,4),(NULL,5),(6,6);
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select * from t1;
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a b
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1 1
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5 5
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3 3
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4 4
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6 6
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delete from t1 where a=6;
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replace t1 values (3,1);
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replace t1 values (3,3);
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ALTER TABLE t1 add c int;
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insert into t1 values (NULL,6,6);
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select * from t1;
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a b c
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1 1 NULL
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5 5 NULL
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3 3 NULL
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4 4 NULL
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6 6 6
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drop table t1;
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create table t1 (a int,b text, index(a)) type=isam;
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Column 'a' is used with UNIQUE or INDEX but is not defined as NOT NULL
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create table t1 (a int,b text, index(b)) type=isam;
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BLOB column 'b' can't be used in key specification with the used table type
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create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ord,ordid)) type=isam;
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Incorrect table definition; There can only be one auto column and it must be defined as a key
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create table t1 (ordid int(8), unique (ordid)) type=isam;
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Column 'ordid' is used with UNIQUE or INDEX but is not defined as NOT NULL
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drop table if exists t1;
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create table t1 (a int not null primary key, b int not null,c int not null, key(b,c));
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insert into t1 values (1,2,2),(2,2,3),(3,2,4),(4,2,4);
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create table t2 type=isam select * from t1;
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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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check table t1,t2;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check error The handler for the table doesn't support check/repair
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repair table t1,t2;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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test.t2 repair error The handler for the table doesn't support check/repair
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check table t2,t1;
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Table Op Msg_type Msg_text
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test.t2 check error The handler for the table doesn't support check/repair
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test.t1 check status OK
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lock tables t1 write;
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check table t2,t1;
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Table Op Msg_type Msg_text
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test.t2 check error Table 't2' was not locked with LOCK TABLES
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test.t1 check status OK
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show columns from t1;
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Field Type Null Key Default Extra
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a int(11) PRI 0
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b int(11) MUL 0
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c int(11) 0
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show full columns from t1;
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Field Type Null Key Default Extra Privileges Comment
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a int(11) PRI 0 select,insert,update,references
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b int(11) MUL 0 select,insert,update,references
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c int(11) 0 select,insert,update,references
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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 4 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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t1 1 b 2 c A 4 NULL NULL BTREE
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drop table t1,t2;
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