ndb_blob.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:16k
- drop table if exists t1;
- drop database if exists test2;
- set autocommit=0;
- create table t1 (
- a int not null primary key,
- b text not null,
- c int not null,
- d longblob,
- key (c)
- ) engine=ndbcluster;
- set @x0 = '01234567012345670123456701234567';
- set @x0 = concat(@x0,@x0,@x0,@x0,@x0,@x0,@x0,@x0);
- set @b1 = 'b1';
- set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
- set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
- set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
- set @b1 = concat(@b1,@x0);
- set @d1 = 'dd1';
- set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
- set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
- set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
- set @b2 = 'b2';
- set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
- set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
- set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
- set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
- set @d2 = 'dd2';
- set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
- set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
- set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
- set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
- select length(@x0),length(@b1),length(@d1) from dual;
- length(@x0) length(@b1) length(@d1)
- 256 2256 3000
- select length(@x0),length(@b2),length(@d2) from dual;
- length(@x0) length(@b2) length(@d2)
- 256 20000 30000
- insert into t1 values(1,@b1,111,@d1);
- insert into t1 values(2,@b2,222,@d2);
- commit;
- explain select * from t1 where a = 1;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a=1;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where a=2;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 2 20000 b2 30000 dd2
- update t1 set b=@b2,d=@d2 where a=1;
- update t1 set b=@b1,d=@d1 where a=2;
- commit;
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where a=1;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 1 20000 b2 30000 dd2
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a=2;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 2 2256 b1 3000 dd1
- update t1 set b=concat(b,b),d=concat(d,d) where a=1;
- update t1 set b=concat(b,b),d=concat(d,d) where a=2;
- commit;
- select a,length(b),substr(b,1+4*9000,2),length(d),substr(d,1+6*9000,3)
- from t1 where a=1;
- a length(b) substr(b,1+4*9000,2) length(d) substr(d,1+6*9000,3)
- 1 40000 b2 60000 dd2
- select a,length(b),substr(b,1+4*900,2),length(d),substr(d,1+6*900,3)
- from t1 where a=2;
- a length(b) substr(b,1+4*900,2) length(d) substr(d,1+6*900,3)
- 2 4512 b1 6000 dd1
- update t1 set d=null where a=1;
- commit;
- select a from t1 where d is null;
- a
- 1
- delete from t1 where a=1;
- delete from t1 where a=2;
- commit;
- select count(*) from t1;
- count(*)
- 0
- replace t1 set a=1,b=@b1,c=111,d=@d1;
- replace t1 set a=2,b=@b2,c=222,d=@d2;
- commit;
- explain select * from t1 where a = 1;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a=1;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where a=2;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 2 20000 b2 30000 dd2
- replace t1 set a=1,b=@b2,c=111,d=@d2;
- replace t1 set a=2,b=@b1,c=222,d=@d1;
- commit;
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where a=1;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 1 20000 b2 30000 dd2
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a=2;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 2 2256 b1 3000 dd1
- replace t1 set a=1,b=concat(@b2,@b2),c=111,d=concat(@d2,@d2);
- replace t1 set a=2,b=concat(@b1,@b1),c=222,d=concat(@d1,@d1);
- commit;
- select a,length(b),substr(b,1+4*9000,2),length(d),substr(d,1+6*9000,3)
- from t1 where a=1;
- a length(b) substr(b,1+4*9000,2) length(d) substr(d,1+6*9000,3)
- 1 40000 b2 60000 dd2
- select a,length(b),substr(b,1+4*900,2),length(d),substr(d,1+6*900,3)
- from t1 where a=2;
- a length(b) substr(b,1+4*900,2) length(d) substr(d,1+6*900,3)
- 2 4512 b1 6000 dd1
- replace t1 set a=1,b='xyz',c=111,d=null;
- commit;
- select a,b from t1 where d is null;
- a b
- 1 xyz
- delete from t1 where a=1;
- delete from t1 where a=2;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,@b1,111,@d1);
- insert into t1 values(2,@b2,222,@d2);
- commit;
- explain select * from t1 where c = 111;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 ref c c 4 const 10 Using where
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where c=111;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where c=222;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 2 20000 b2 30000 dd2
- update t1 set b=@b2,d=@d2 where c=111;
- update t1 set b=@b1,d=@d1 where c=222;
- commit;
- select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
- from t1 where c=111;
- a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
- 1 20000 b2 30000 dd2
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where c=222;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 2 2256 b1 3000 dd1
- update t1 set d=null where c=111;
- commit;
- select a from t1 where d is null;
- a
- 1
- delete from t1 where c=111;
- delete from t1 where c=222;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,'b1',111,'dd1');
- insert into t1 values(2,'b2',222,'dd2');
- insert into t1 values(3,'b3',333,'dd3');
- insert into t1 values(4,'b4',444,'dd4');
- insert into t1 values(5,'b5',555,'dd5');
- insert into t1 values(6,'b6',666,'dd6');
- insert into t1 values(7,'b7',777,'dd7');
- insert into t1 values(8,'b8',888,'dd8');
- insert into t1 values(9,'b9',999,'dd9');
- commit;
- explain select * from t1;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 ALL NULL NULL NULL NULL 9
- select * from t1 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- update t1 set b=concat(a,'x',b),d=concat(a,'x',d);
- commit;
- select * from t1 order by a;
- a b c d
- 1 1xb1 111 1xdd1
- 2 2xb2 222 2xdd2
- 3 3xb3 333 3xdd3
- 4 4xb4 444 4xdd4
- 5 5xb5 555 5xdd5
- 6 6xb6 666 6xdd6
- 7 7xb7 777 7xdd7
- 8 8xb8 888 8xdd8
- 9 9xb9 999 9xdd9
- delete from t1;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,@b1,111,@d1);
- insert into t1 values(2,@b2,222,@d2);
- commit;
- explain select * from t1;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 ALL NULL NULL NULL NULL 2
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 order by a;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- 2 20000 b2 30000 dd2
- update t1 set b=concat(b,b),d=concat(d,d);
- commit;
- select a,length(b),substr(b,1+4*9000,2),length(d),substr(d,1+6*9000,3)
- from t1 order by a;
- a length(b) substr(b,1+4*9000,2) length(d) substr(d,1+6*9000,3)
- 1 4512 6000
- 2 40000 b2 60000 dd2
- delete from t1;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,'b1',111,'dd1');
- insert into t1 values(2,'b2',222,'dd2');
- insert into t1 values(3,'b3',333,'dd3');
- insert into t1 values(4,'b4',444,'dd4');
- insert into t1 values(5,'b5',555,'dd5');
- insert into t1 values(6,'b6',666,'dd6');
- insert into t1 values(7,'b7',777,'dd7');
- insert into t1 values(8,'b8',888,'dd8');
- insert into t1 values(9,'b9',999,'dd9');
- commit;
- explain select * from t1 where c >= 100 order by a;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 range c c 4 NULL 10 Using where; Using filesort
- select * from t1 where c >= 100 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- update t1 set b=concat(a,'x',b),d=concat(a,'x',d)
- where c >= 100;
- commit;
- select * from t1 where c >= 100 order by a;
- a b c d
- 1 1xb1 111 1xdd1
- 2 2xb2 222 2xdd2
- 3 3xb3 333 3xdd3
- 4 4xb4 444 4xdd4
- 5 5xb5 555 5xdd5
- 6 6xb6 666 6xdd6
- 7 7xb7 777 7xdd7
- 8 8xb8 888 8xdd8
- 9 9xb9 999 9xdd9
- delete from t1 where c >= 100;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,@b1,111,@d1);
- insert into t1 values(2,@b2,222,@d2);
- commit;
- explain select * from t1 where c >= 100 order by a;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 range c c 4 NULL 10 Using where; Using filesort
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where c >= 100 order by a;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- 2 20000 b2 30000 dd2
- update t1 set b=concat(b,b),d=concat(d,d);
- commit;
- select a,length(b),substr(b,1+4*9000,2),length(d),substr(d,1+6*9000,3)
- from t1 where c >= 100 order by a;
- a length(b) substr(b,1+4*9000,2) length(d) substr(d,1+6*9000,3)
- 1 4512 6000
- 2 40000 b2 60000 dd2
- delete from t1 where c >= 100;
- commit;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,@b1,111,@d1);
- insert into t1 values(2,@b2,222,@d2);
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a = 0;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a = 1;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 where a = 2;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 2 20000 b2 30000 dd2
- select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
- from t1 order by a;
- a length(b) substr(b,1+2*900,2) length(d) substr(d,1+3*900,3)
- 1 2256 b1 3000 dd1
- 2 20000 b2 30000 dd2
- rollback;
- select count(*) from t1;
- count(*)
- 0
- insert into t1 values(1,'b1',111,'dd1');
- insert into t1 values(2,'b2',222,'dd2');
- insert into t1 values(3,'b3',333,'dd3');
- insert into t1 values(4,'b4',444,'dd4');
- insert into t1 values(5,'b5',555,'dd5');
- insert into t1 values(6,'b6',666,'dd6');
- insert into t1 values(7,'b7',777,'dd7');
- insert into t1 values(8,'b8',888,'dd8');
- insert into t1 values(9,'b9',999,'dd9');
- commit;
- select * from t1 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- alter table t1 add x int;
- select * from t1 order by a;
- a b c d x
- 1 b1 111 dd1 NULL
- 2 b2 222 dd2 NULL
- 3 b3 333 dd3 NULL
- 4 b4 444 dd4 NULL
- 5 b5 555 dd5 NULL
- 6 b6 666 dd6 NULL
- 7 b7 777 dd7 NULL
- 8 b8 888 dd8 NULL
- 9 b9 999 dd9 NULL
- alter table t1 drop x;
- select * from t1 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- create database test2;
- use test2;
- CREATE TABLE t2 (
- a bigint unsigned NOT NULL PRIMARY KEY,
- b int unsigned not null,
- c int unsigned
- ) engine=ndbcluster;
- insert into t2 values (1,1,1),(2,2,2);
- select * from test.t1,t2 where test.t1.a = t2.a order by test.t1.a;
- a b c d a b c
- 1 b1 111 dd1 1 1 1
- 2 b2 222 dd2 2 2 2
- drop table t2;
- use test;
- select * from t1 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- alter table t1 add x int;
- select * from t1 order by a;
- a b c d x
- 1 b1 111 dd1 NULL
- 2 b2 222 dd2 NULL
- 3 b3 333 dd3 NULL
- 4 b4 444 dd4 NULL
- 5 b5 555 dd5 NULL
- 6 b6 666 dd6 NULL
- 7 b7 777 dd7 NULL
- 8 b8 888 dd8 NULL
- 9 b9 999 dd9 NULL
- alter table t1 drop x;
- select * from t1 order by a;
- a b c d
- 1 b1 111 dd1
- 2 b2 222 dd2
- 3 b3 333 dd3
- 4 b4 444 dd4
- 5 b5 555 dd5
- 6 b6 666 dd6
- 7 b7 777 dd7
- 8 b8 888 dd8
- 9 b9 999 dd9
- drop table t1;
- drop database test2;
- set autocommit=0;
- create table t1 (
- a int not null primary key,
- b tinytext
- ) engine=ndbcluster;
- insert into t1 values(1, 'x');
- update t1 set b = 'y';
- select * from t1;
- a b
- 1 y
- delete from t1;
- select * from t1;
- a b
- commit;
- drop table t1;
- set autocommit=0;
- create table t1 (
- a int not null primary key,
- b text not null
- ) engine=ndbcluster;
- insert into t1 values(1, '');
- select * from t1;
- a b
- 1
- commit;
- drop table t1;
- set autocommit=1;
- use test;
- CREATE TABLE t1 (
- a int,
- b text,
- PRIMARY KEY (a)
- ) ENGINE=MyISAM DEFAULT CHARSET=latin1;
- INSERT INTO t1 VALUES
- (1,'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA');
- INSERT INTO t1 VALUES
- (2,'BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB');
- select * from t1 order by a;
- a b
- 1 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
- 2 BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
- alter table t1 engine=ndb;
- select * from t1 order by a;
- a b
- 1 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
- 2 BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
- set autocommit=1;
- alter table t1 engine=myisam;
- select * from t1 order by a;
- a b
- 1 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
- 2 BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
- drop table t1;
- create table t1 (
- id int(11) unsigned primary key NOT NULL auto_increment,
- msg text NOT NULL
- ) engine=ndbcluster default charset=utf8;
- insert into t1 (msg) values(
- 'Tries to validate (8 byte length + inline bytes) as UTF8 :(
- Fast fix: removed validation for Text. It is not yet indexable
- so bad data will not crash kernel.
- Proper fix: Set inline bytes to multiple of mbmaxlen and
- validate it (after the 8 byte length).');
- select * from t1;
- id msg
- 1 Tries to validate (8 byte length + inline bytes) as UTF8 :(
- Fast fix: removed validation for Text. It is not yet indexable
- so bad data will not crash kernel.
- Proper fix: Set inline bytes to multiple of mbmaxlen and
- validate it (after the 8 byte length).
- drop table t1;