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Merge

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Igor Babaev
2013-03-02 14:04:11 -08:00
parent 6c4f41ff32 bd305d6b21
commit fe6c8d4238
4 changed files with 180 additions and 15 deletions
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76
mysql-test/t/innodb_ext_key.test
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@@ -414,6 +414,7 @@ INSERT INTO t1 (a) VALUES (4), (6);
INSERT INTO t2 (b) VALUES (0), (8);
set @save_optimizer_switch=@@optimizer_switch;
set @save_join_cache_level=@@join_cache_level;
SET join_cache_level=3;
SET optimizer_switch='join_cache_hashed=on';
@@ -424,6 +425,7 @@ EXPLAIN
SELECT * FROM t1, t2 WHERE b=a;
SELECT * FROM t1, t2 WHERE b=a;
set join_cache_level=@save_join_cache_level;
set optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
@@ -466,6 +468,78 @@ set optimizer_switch=@save_optimizer_switch;
DROP TABLE t1;
--echo #
--echo # Bug mdev-4220: using ref instead of eq_ref
--echo # with extended_keys=on
--echo # (performance regression introduced in the patch for mdev-3851)
--echo #
set @save_optimizer_switch=@@optimizer_switch;
create table t1 (a int not null) engine=innodb;
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2 (
pk int primary key, a int not null, b int, unique(a)
)engine=innodb;
insert into t2
select
A.a + 10 * B.a, A.a + 10 * B.a, A.a + 10 * B.a
from t1 A, t1 B;
set optimizer_switch='extended_keys=off';
explain
select * from t1, t2 where t2.a=t1.a and t2.b < 2;
flush status;
select * from t1, t2 where t2.a=t1.a and t2.b < 2;
show status like 'handler_read%';
set optimizer_switch='extended_keys=on';
explain
select * from t1, t2 where t2.a=t1.a and t2.b < 2;
flush status;
select * from t1, t2 where t2.a=t1.a and t2.b < 2;
show status like 'handler_read%';
drop table t1,t2;
# this test case did not demonstrate any regression
# it is added for better testing
create table t1(a int) engine=myisam;
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t2(a int) engine=myisam;
insert into t2 select A.a + 10*B.a + 100*C.a from t1 A, t1 B, t1 C;
create table t3 (
pk1 int not null, pk2 int not null, col1 int not null, col2 int not null)
engine=innodb;
insert into t3 select a,a,a,a from t2;
alter table t3 add primary key (pk1, pk2);
alter table t3 add key (col1, col2);
set optimizer_switch='extended_keys=off';
--replace_column 9 #
explain
select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a;
--replace_column 9 #
explain
select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a and t3.pk1=t1.a;
set optimizer_switch='extended_keys=on';
--replace_column 9 #
explain
select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a;
--replace_column 9 #
explain
select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a and t3.pk1=t1.a;
drop table t1,t2,t3;
set optimizer_switch=@save_optimizer_switch;
set optimizer_switch=@save_ext_key_optimizer_switch;
SET SESSION STORAGE_ENGINE=DEFAULT;