mirror of
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Merge
sql/ha_ndbcluster.h: Auto merged sql/ha_ndbcluster.cc: merge
This commit is contained in:
unknown
272
mysql-test/r/ndb_blob.result
Normal file
272
mysql-test/r/ndb_blob.result
Normal file
@ -0,0 +1,272 @@
|
||||
drop table if exists t1;
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||||
set autocommit=0;
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||||
create table t1 (
|
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a int not null primary key,
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b text not null,
|
||||
c int not null,
|
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d longblob,
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||||
key (c)
|
||||
) engine=ndbcluster;
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||||
set @x0 = '01234567012345670123456701234567';
|
||||
set @x0 = concat(@x0,@x0,@x0,@x0,@x0,@x0,@x0,@x0);
|
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set @b1 = 'b1';
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set @b1 = concat(@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1,@b1);
|
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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);
|
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set @b1 = concat(@b1,@x0);
|
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set @d1 = 'dd1';
|
||||
set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
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set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
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||||
set @d1 = concat(@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1,@d1);
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||||
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);
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||||
set @b2 = concat(@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2,@b2);
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||||
set @d2 = 'dd2';
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||||
set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
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||||
set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
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set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
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set @d2 = concat(@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2,@d2);
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select length(@x0),length(@b1),length(@d1) from dual;
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length(@x0) length(@b1) length(@d1)
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256 2256 3000
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select length(@x0),length(@b2),length(@d2) from dual;
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length(@x0) length(@b2) length(@d2)
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256 20000 30000
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||||
insert into t1 values(1,@b1,111,@d1);
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insert into t1 values(2,@b2,222,@d2);
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commit;
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explain select * from t1 where a = 1;
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id select_type table type possible_keys key key_len ref rows Extra
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||||
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
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select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
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from t1 where a=1;
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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)
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from t1 where a=2;
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a length(b) substr(b,1+2*9000,2) length(d) substr(d,1+3*9000,3)
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2 20000 b2 30000 dd2
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update t1 set b=@b2,d=@d2 where a=1;
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||||
update t1 set b=@b1,d=@d1 where a=2;
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||||
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)
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||||
1 20000 b2 30000 dd2
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
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||||
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;
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||||
update t1 set b=concat(b,b),d=concat(d,d) where a=2;
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commit;
|
||||
select a,length(b),substr(b,1+4*9000,2),length(d),substr(d,1+6*9000,3)
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||||
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
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||||
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;
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||||
commit;
|
||||
select a from t1 where d is null;
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||||
a
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||||
1
|
||||
delete from t1 where a=1;
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||||
delete from t1 where a=2;
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||||
commit;
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||||
select count(*) from t1;
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||||
count(*)
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||||
0
|
||||
insert into t1 values(1,@b1,111,@d1);
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||||
insert into t1 values(2,@b2,222,@d2);
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||||
commit;
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||||
explain select * from t1 where c = 111;
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||||
id select_type table type possible_keys key key_len ref rows Extra
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||||
1 SIMPLE t1 ref c c 4 const 10 Using where
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select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
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||||
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;
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||||
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;
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||||
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;
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||||
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 100
|
||||
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);
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||||
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 100
|
||||
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
|
||||
249
mysql-test/t/ndb_blob.test
Normal file
249
mysql-test/t/ndb_blob.test
Normal file
@ -0,0 +1,249 @@
|
||||
--source include/have_ndb.inc
|
||||
|
||||
--disable_warnings
|
||||
drop table if exists t1;
|
||||
--enable_warnings
|
||||
|
||||
#
|
||||
# Minimal NDB blobs test.
|
||||
#
|
||||
# On NDB API level there is an extensive test program "testBlobs".
|
||||
# A prerequisite for this handler test is that "testBlobs" succeeds.
|
||||
#
|
||||
|
||||
# make test harder with autocommit off
|
||||
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;
|
||||
|
||||
# -- values --
|
||||
|
||||
# x0 size 256 (current inline size)
|
||||
set @x0 = '01234567012345670123456701234567';
|
||||
set @x0 = concat(@x0,@x0,@x0,@x0,@x0,@x0,@x0,@x0);
|
||||
|
||||
# b1 length 2000+256 (blob part aligned)
|
||||
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);
|
||||
# d1 length 3000
|
||||
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);
|
||||
|
||||
# b2 length 20000
|
||||
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);
|
||||
# d2 length 30000
|
||||
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;
|
||||
select length(@x0),length(@b2),length(@d2) from dual;
|
||||
|
||||
# -- pk ops --
|
||||
|
||||
insert into t1 values(1,@b1,111,@d1);
|
||||
insert into t1 values(2,@b2,222,@d2);
|
||||
commit;
|
||||
explain select * from t1 where a = 1;
|
||||
|
||||
# pk read
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where a=1;
|
||||
select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
|
||||
from t1 where a=2;
|
||||
|
||||
# pk update
|
||||
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;
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where a=2;
|
||||
|
||||
# pk update
|
||||
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;
|
||||
select a,length(b),substr(b,1+4*900,2),length(d),substr(d,1+6*900,3)
|
||||
from t1 where a=2;
|
||||
|
||||
# pk update to null
|
||||
update t1 set d=null where a=1;
|
||||
commit;
|
||||
select a from t1 where d is null;
|
||||
|
||||
# pk delete
|
||||
delete from t1 where a=1;
|
||||
delete from t1 where a=2;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- hash index ops --
|
||||
|
||||
insert into t1 values(1,@b1,111,@d1);
|
||||
insert into t1 values(2,@b2,222,@d2);
|
||||
commit;
|
||||
explain select * from t1 where c = 111;
|
||||
|
||||
# hash key read
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where c=111;
|
||||
select a,length(b),substr(b,1+2*9000,2),length(d),substr(d,1+3*9000,3)
|
||||
from t1 where c=222;
|
||||
|
||||
# hash key update
|
||||
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;
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where c=222;
|
||||
|
||||
# hash key update to null
|
||||
update t1 set d=null where c=111;
|
||||
commit;
|
||||
select a from t1 where d is null;
|
||||
|
||||
# hash key delete
|
||||
delete from t1 where c=111;
|
||||
delete from t1 where c=222;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- table scan ops, short values --
|
||||
|
||||
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;
|
||||
|
||||
# table scan read
|
||||
select * from t1 order by a;
|
||||
|
||||
# table scan update
|
||||
update t1 set b=concat(a,'x',b),d=concat(a,'x',d);
|
||||
commit;
|
||||
select * from t1 order by a;
|
||||
|
||||
# table scan delete
|
||||
delete from t1;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- table scan ops, long values --
|
||||
|
||||
insert into t1 values(1,@b1,111,@d1);
|
||||
insert into t1 values(2,@b2,222,@d2);
|
||||
commit;
|
||||
explain select * from t1;
|
||||
|
||||
# table scan read
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 order by a;
|
||||
|
||||
# table scan update
|
||||
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;
|
||||
|
||||
# table scan delete
|
||||
delete from t1;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- range scan ops, short values --
|
||||
|
||||
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;
|
||||
|
||||
# range scan read
|
||||
select * from t1 where c >= 100 order by a;
|
||||
|
||||
# range scan update
|
||||
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;
|
||||
|
||||
# range scan delete
|
||||
delete from t1 where c >= 100;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- range scan ops, long values --
|
||||
|
||||
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;
|
||||
|
||||
# range scan read
|
||||
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;
|
||||
|
||||
# range scan update
|
||||
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;
|
||||
|
||||
# range scan delete
|
||||
delete from t1 where c >= 100;
|
||||
commit;
|
||||
select count(*) from t1;
|
||||
|
||||
# -- rollback --
|
||||
|
||||
insert into t1 values(1,@b1,111,@d1);
|
||||
insert into t1 values(2,@b2,222,@d2);
|
||||
# 626
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where a = 0;
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where a = 1;
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 where a = 2;
|
||||
select a,length(b),substr(b,1+2*900,2),length(d),substr(d,1+3*900,3)
|
||||
from t1 order by a;
|
||||
rollback;
|
||||
select count(*) from t1;
|
||||
|
||||
--drop table t1;
|
||||
Reference in New Issue
Block a user