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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set default_storage_engine=TokuDB;
create table t1(a int);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL
) ENGINE=TokuDB DEFAULT CHARSET=latin1
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2(a int);
insert into t2 select A.a + 10*(B.a + 10*C.a) from t1 A, t1 B, t1 C;
create table t3 (
a char(8) not null, b char(8) not null, filler char(200),
key(a)
);
insert into t3 select @a:=concat('c-', 1000+ A.a, '=w'), @a, 'filler' from t2 A;
insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 2000+A.a, '=w'),
'filler-1' from t2 A;
insert into t3 select concat('c-', 1000+A.a, '=w'), concat('c-', 3000+A.a, '=w'),
'filler-2' from t2 A;
select a,filler from t3 where a >= 'c-9011=w';
a filler
select a,filler from t3 where a >= 'c-1011=w' and a <= 'c-1015=w';
a filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1011=w filler-1
c-1012=w filler-1
c-1013=w filler-1
c-1014=w filler-1
c-1015=w filler-1
c-1011=w filler-2
c-1012=w filler-2
c-1013=w filler-2
c-1014=w filler-2
c-1015=w filler-2
select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
(a>='c-1014=w' and a <= 'c-1015=w');
a filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1011=w filler-1
c-1012=w filler-1
c-1013=w filler-1
c-1014=w filler-1
c-1015=w filler-1
c-1011=w filler-2
c-1012=w filler-2
c-1013=w filler-2
c-1014=w filler-2
c-1015=w filler-2
insert into t3 values ('c-1013=z', 'c-1013=z', 'err');
insert into t3 values ('a-1014=w', 'a-1014=w', 'err');
select a,filler from t3 where (a>='c-1011=w' and a <= 'c-1013=w') or
(a>='c-1014=w' and a <= 'c-1015=w');
a filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1011=w filler-1
c-1012=w filler-1
c-1013=w filler-1
c-1014=w filler-1
c-1015=w filler-1
c-1011=w filler-2
c-1012=w filler-2
c-1013=w filler-2
c-1014=w filler-2
c-1015=w filler-2
delete from t3 where b in ('c-1013=z', 'a-1014=w');
select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
a='c-1014=w' or a='c-1015=w';
a filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1011=w filler-1
c-1012=w filler-1
c-1013=w filler-1
c-1014=w filler-1
c-1015=w filler-1
c-1011=w filler-2
c-1012=w filler-2
c-1013=w filler-2
c-1014=w filler-2
c-1015=w filler-2
insert into t3 values ('c-1013=w', 'del-me', 'inserted');
select a,filler from t3 where a='c-1011=w' or a='c-1012=w' or a='c-1013=w' or
a='c-1014=w' or a='c-1015=w';
a filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1011=w filler-1
c-1012=w filler-1
c-1013=w filler-1
c-1014=w filler-1
c-1015=w filler-1
c-1011=w filler-2
c-1012=w filler-2
c-1013=w filler-2
c-1014=w filler-2
c-1015=w filler-2
c-1013=w inserted
delete from t3 where b='del-me';
alter table t3 add primary key(b);
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
b IN ('c-1019=w', 'c-1020=w', 'c-1021=w',
'c-1022=w', 'c-1023=w', 'c-1024=w');
b filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1016=w filler
c-1017=w filler
c-1018=w filler
c-1019=w filler
c-1020=w filler
c-1021=w filler
c-1022=w filler
c-1023=w filler
c-1024=w filler
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1020=w') or
b IN ('c-1021=w', 'c-1022=w', 'c-1023=w');
b filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1016=w filler
c-1017=w filler
c-1018=w filler
c-1019=w filler
c-1020=w filler
c-1021=w filler
c-1022=w filler
c-1023=w filler
select b,filler from t3 where (b>='c-1011=w' and b<= 'c-1018=w') or
b IN ('c-1019=w', 'c-1020=w') or
(b>='c-1021=w' and b<= 'c-1023=w');
b filler
c-1011=w filler
c-1012=w filler
c-1013=w filler
c-1014=w filler
c-1015=w filler
c-1016=w filler
c-1017=w filler
c-1018=w filler
c-1019=w filler
c-1020=w filler
c-1021=w filler
c-1022=w filler
c-1023=w filler
drop table if exists t4;
create table t4 (a varchar(10), b int, c char(10), filler char(200),
key idx1 (a, b, c));
insert into t4 (filler) select concat('NULL-', 15-a) from t2 order by a limit 15;
insert into t4 (a,b,c,filler)
select 'b-1',NULL,'c-1', concat('NULL-', 15-a) from t2 order by a limit 15;
insert into t4 (a,b,c,filler)
select 'b-1',NULL,'c-222', concat('NULL-', 15-a) from t2 order by a limit 15;
insert into t4 (a,b,c,filler)
select 'bb-1',NULL,'cc-2', concat('NULL-', 15-a) from t2 order by a limit 15;
insert into t4 (a,b,c,filler)
select 'zz-1',NULL,'cc-2', 'filler-data' from t2 order by a limit 500;
explain
select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
or c='no-such-row2');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 range idx1 idx1 29 NULL 16 Using where; Rowid-ordered scan
select * from t4 where a IS NULL and b IS NULL and (c IS NULL or c='no-such-row1'
or c='no-such-row2');
a b c filler
NULL NULL NULL NULL-15
NULL NULL NULL NULL-14
NULL NULL NULL NULL-13
NULL NULL NULL NULL-12
NULL NULL NULL NULL-11
NULL NULL NULL NULL-10
NULL NULL NULL NULL-9
NULL NULL NULL NULL-8
NULL NULL NULL NULL-7
NULL NULL NULL NULL-6
NULL NULL NULL NULL-5
NULL NULL NULL NULL-4
NULL NULL NULL NULL-3
NULL NULL NULL NULL-2
NULL NULL NULL NULL-1
explain
select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 range idx1 idx1 29 NULL 32 Using where; Rowid-ordered scan
select * from t4 where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
a b c filler
b-1 NULL c-1 NULL-15
b-1 NULL c-1 NULL-14
b-1 NULL c-1 NULL-13
b-1 NULL c-1 NULL-12
b-1 NULL c-1 NULL-11
b-1 NULL c-1 NULL-10
b-1 NULL c-1 NULL-9
b-1 NULL c-1 NULL-8
b-1 NULL c-1 NULL-7
b-1 NULL c-1 NULL-6
b-1 NULL c-1 NULL-5
b-1 NULL c-1 NULL-4
b-1 NULL c-1 NULL-3
b-1 NULL c-1 NULL-2
b-1 NULL c-1 NULL-1
bb-1 NULL cc-2 NULL-15
bb-1 NULL cc-2 NULL-14
bb-1 NULL cc-2 NULL-13
bb-1 NULL cc-2 NULL-12
bb-1 NULL cc-2 NULL-11
bb-1 NULL cc-2 NULL-10
bb-1 NULL cc-2 NULL-9
bb-1 NULL cc-2 NULL-8
bb-1 NULL cc-2 NULL-7
bb-1 NULL cc-2 NULL-6
bb-1 NULL cc-2 NULL-5
bb-1 NULL cc-2 NULL-4
bb-1 NULL cc-2 NULL-3
bb-1 NULL cc-2 NULL-2
bb-1 NULL cc-2 NULL-1
select * from t4 ignore index(idx1) where (a ='b-1' or a='bb-1') and b IS NULL and (c='c-1' or c='cc-2');
a b c filler
b-1 NULL c-1 NULL-15
b-1 NULL c-1 NULL-14
b-1 NULL c-1 NULL-13
b-1 NULL c-1 NULL-12
b-1 NULL c-1 NULL-11
b-1 NULL c-1 NULL-10
b-1 NULL c-1 NULL-9
b-1 NULL c-1 NULL-8
b-1 NULL c-1 NULL-7
b-1 NULL c-1 NULL-6
b-1 NULL c-1 NULL-5
b-1 NULL c-1 NULL-4
b-1 NULL c-1 NULL-3
b-1 NULL c-1 NULL-2
b-1 NULL c-1 NULL-1
bb-1 NULL cc-2 NULL-15
bb-1 NULL cc-2 NULL-14
bb-1 NULL cc-2 NULL-13
bb-1 NULL cc-2 NULL-12
bb-1 NULL cc-2 NULL-11
bb-1 NULL cc-2 NULL-10
bb-1 NULL cc-2 NULL-9
bb-1 NULL cc-2 NULL-8
bb-1 NULL cc-2 NULL-7
bb-1 NULL cc-2 NULL-6
bb-1 NULL cc-2 NULL-5
bb-1 NULL cc-2 NULL-4
bb-1 NULL cc-2 NULL-3
bb-1 NULL cc-2 NULL-2
bb-1 NULL cc-2 NULL-1
drop table t1, t2, t3, t4;
create table t1 (a int, b int not null,unique key (a,b),index(b));
insert ignore into t1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(null,7),(9,9),(8,8),(7,7),(null,9),(null,9),(6,6);
Warnings:
Warning 1062 Duplicate entry '6-6' for key 'a'
create table t2 like t1;
insert into t2 select * from t1;
alter table t1 modify b blob not null, add c int not null, drop key a, add unique key (a,b(20),c), drop key b, add key (b(10));
select * from t1 where a is null;
a b c
NULL 7 0
NULL 9 0
NULL 9 0
select * from t1 where (a is null or a > 0 and a < 3) and b > 7 limit 3;
a b c
NULL 9 0
NULL 9 0
select * from t1 where a is null and b=9 or a is null and b=7 limit 3;
a b c
NULL 7 0
NULL 9 0
NULL 9 0
drop table t1, t2;
#
# Bug#41029 "MRR: SELECT FOR UPDATE fails to lock gaps (InnoDB table)"
#
connect con1,localhost,root,,;
connect con2,localhost,root,,;
connection con1;
SET AUTOCOMMIT=0;
CREATE TABLE t1 (
dummy INT PRIMARY KEY,
a INT UNIQUE,
b INT
) ENGINE=TokuDB;
INSERT INTO t1 VALUES (1,1,1),(3,3,3),(5,5,5);
COMMIT;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
SELECT @@tx_isolation;
@@tx_isolation
REPEATABLE-READ
START TRANSACTION;
EXPLAIN SELECT * FROM t1 WHERE a >= 2 FOR UPDATE;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 5 NULL 2 Using where
SELECT * FROM t1 WHERE a >= 2 FOR UPDATE;
dummy a b
3 3 3
5 5 5
connection con2;
SET AUTOCOMMIT=0;
SET TOKUDB_LOCK_TIMEOUT=2;
START TRANSACTION;
INSERT INTO t1 VALUES (2,2,2);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
ROLLBACK;
connection con1;
ROLLBACK;
DROP TABLE t1;
connection default;
disconnect con1;
disconnect con2;
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