2001-12-13 01:31:19 +01:00
|
|
|
|
flush query cache;
|
|
|
|
|
flush query cache;
|
2001-12-06 00:05:30 +01:00
|
|
|
|
reset query cache;
|
|
|
|
|
flush status;
|
2001-12-23 01:43:46 +01:00
|
|
|
|
drop table if exists t1,t2,t3,t11,t21, mysqltest.t1;
|
2001-12-06 00:05:30 +01:00
|
|
|
|
create table t1 (a int not null);
|
|
|
|
|
insert into t1 values (1),(2),(3);
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select sql_no_cache * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select length(now()) from t1;
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|
|
|
|
length(now())
|
|
|
|
|
19
|
|
|
|
|
19
|
|
|
|
|
19
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
show status like "Qcache_inserts";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_inserts 1
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 1
|
|
|
|
|
drop table t1;
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|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
2001-12-09 23:08:24 +01:00
|
|
|
|
create table t1 (a int not null);
|
|
|
|
|
insert into t1 values (1),(2),(3);
|
|
|
|
|
create table t2 (a int not null);
|
|
|
|
|
insert into t2 values (4),(5),(6);
|
|
|
|
|
create table t3 (a int not null) type=MERGE UNION=(t1,t2) INSERT_METHOD=FIRST;
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|
|
|
|
select * from t3;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
4
|
|
|
|
|
5
|
|
|
|
|
6
|
|
|
|
|
select * from t3;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
4
|
|
|
|
|
5
|
|
|
|
|
6
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 2
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
insert into t2 values (7);
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 3
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
insert into t3 values (8);
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select * from t3;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
8
|
|
|
|
|
4
|
|
|
|
|
5
|
|
|
|
|
6
|
|
|
|
|
7
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
update t2 set a=9 where a=7;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
8
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
update t3 set a=10 where a=1;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select * from t3;
|
|
|
|
|
a
|
|
|
|
|
10
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
8
|
|
|
|
|
4
|
|
|
|
|
5
|
|
|
|
|
6
|
|
|
|
|
9
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
delete from t2 where a=9;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
10
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
8
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
delete from t3 where a=10;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
drop table t1, t2, t3;
|
|
|
|
|
create table t1 (a int not null);
|
|
|
|
|
insert into t1 values (1),(2),(3);
|
|
|
|
|
create table t2 (a int not null);
|
|
|
|
|
insert into t2 values (1),(2),(3);
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select * from t2;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
insert into t1 values (4);
|
|
|
|
|
show status like "Qcache_free_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_free_blocks 2
|
|
|
|
|
flush query cache;
|
|
|
|
|
show status like "Qcache_free_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_free_blocks 1
|
|
|
|
|
drop table t1, t2;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
create table t1 (a text not null);
|
|
|
|
|
create table t11 (a text not null);
|
|
|
|
|
create table t2 (a text not null);
|
|
|
|
|
create table t21 (a text not null);
|
|
|
|
|
create table t3 (a text not null);
|
|
|
|
|
insert into t1 values("1111111111111111111111111111111111111111111111111111");
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
2002-01-12 14:40:52 +01:00
|
|
|
|
insert into t11 select * from t1;
|
|
|
|
|
insert into t21 select * from t1;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t3 select * from t1;
|
|
|
|
|
insert into t3 select * from t2;
|
|
|
|
|
insert into t3 select * from t1;
|
|
|
|
|
select * from t11;
|
|
|
|
|
select * from t21;
|
|
|
|
|
show status like "Qcache_total_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_total_blocks 7
|
|
|
|
|
show status like "Qcache_free_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_free_blocks 1
|
|
|
|
|
insert into t11 values("");
|
|
|
|
|
select * from t3;
|
|
|
|
|
show status like "Qcache_total_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_total_blocks 8
|
|
|
|
|
show status like "Qcache_free_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_free_blocks 1
|
|
|
|
|
flush query cache;
|
|
|
|
|
show status like "Qcache_total_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_total_blocks 7
|
|
|
|
|
show status like "Qcache_free_blocks";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_free_blocks 1
|
|
|
|
|
drop table t1, t2, t3, t11, t21;
|
2002-07-23 17:31:22 +02:00
|
|
|
|
set query_cache_type=demand;
|
2001-12-09 23:08:24 +01:00
|
|
|
|
create table t1 (a int not null);
|
|
|
|
|
insert into t1 values (1),(2),(3);
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select sql_cache * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
2002-07-23 17:31:22 +02:00
|
|
|
|
set query_cache_type=2;
|
2001-12-09 23:08:24 +01:00
|
|
|
|
select sql_cache * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 4
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
2002-07-23 17:31:22 +02:00
|
|
|
|
set query_cache_type=on;
|
2001-12-09 23:08:24 +01:00
|
|
|
|
reset query cache;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
select sql_no_cache * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
drop table t1;
|
|
|
|
|
create table t1 (a text not null);
|
|
|
|
|
select CONNECTION_ID() from t1;
|
|
|
|
|
CONNECTION_ID()
|
|
|
|
|
select FOUND_ROWS();
|
|
|
|
|
FOUND_ROWS()
|
|
|
|
|
0
|
|
|
|
|
select NOW() from t1;
|
|
|
|
|
NOW()
|
|
|
|
|
select CURDATE() from t1;
|
|
|
|
|
CURDATE()
|
|
|
|
|
select CURTIME() from t1;
|
|
|
|
|
CURTIME()
|
|
|
|
|
select DATABASE() from t1;
|
|
|
|
|
DATABASE()
|
|
|
|
|
select ENCRYPT("test") from t1;
|
|
|
|
|
ENCRYPT("test")
|
|
|
|
|
select LAST_INSERT_ID() from t1;
|
|
|
|
|
last_insert_id()
|
|
|
|
|
select RAND() from t1;
|
|
|
|
|
RAND()
|
|
|
|
|
select UNIX_TIMESTAMP() from t1;
|
|
|
|
|
UNIX_TIMESTAMP()
|
|
|
|
|
select USER() from t1;
|
|
|
|
|
USER()
|
|
|
|
|
select benchmark(1,1) from t1;
|
|
|
|
|
benchmark(1,1)
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
create table t2 (a text not null);
|
|
|
|
|
insert into t1 values("1111111111111111111111111111111111111111111111111111");
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 4
|
|
|
|
|
select a as a1, a as a2 from t1;
|
|
|
|
|
select a as a2, a as a3 from t1;
|
|
|
|
|
select a as a3, a as a4 from t1;
|
|
|
|
|
select a as a1, a as a2 from t1;
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 4
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
reset query cache;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
insert into t2 select * from t1;
|
|
|
|
|
insert into t1 select * from t2;
|
|
|
|
|
select * from t1;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
drop table t1,t2;
|
2001-12-23 01:43:46 +01:00
|
|
|
|
create database if not exists mysqltest;
|
2001-12-22 14:13:31 +01:00
|
|
|
|
create table mysqltest.t1 (i int not null auto_increment, a int, primary key (i));
|
|
|
|
|
insert into mysqltest.t1 (a) values (1);
|
|
|
|
|
select * from mysqltest.t1 where i is null;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
i a
|
|
|
|
|
1 1
|
2001-12-22 14:13:31 +01:00
|
|
|
|
select * from mysqltest.t1;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
i a
|
|
|
|
|
1 1
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
2001-12-22 14:13:31 +01:00
|
|
|
|
drop database mysqltest;
|
2001-12-14 15:02:41 +01:00
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
|
|
|
|
create table t1 (a char(1) not null);
|
|
|
|
|
insert into t1 values("<22>");
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
<EFBFBD>
|
|
|
|
|
set CHARACTER SET cp1251_koi8;
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
<EFBFBD>
|
|
|
|
|
set CHARACTER SET DEFAULT;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
2001-12-23 01:43:46 +01:00
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 4
|
|
|
|
|
drop table t1;
|
|
|
|
|
create database if not exists mysqltest;
|
|
|
|
|
create table mysqltest.t1 (i int not null);
|
|
|
|
|
create table t1 (i int not null);
|
|
|
|
|
insert into mysqltest.t1 (i) values (1);
|
|
|
|
|
insert into t1 (i) values (2);
|
|
|
|
|
select * from t1;
|
|
|
|
|
i
|
|
|
|
|
2
|
|
|
|
|
use mysqltest;
|
|
|
|
|
select * from t1;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
select * from t1;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
use test;
|
|
|
|
|
select * from t1;
|
|
|
|
|
i
|
|
|
|
|
2
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 6
|
|
|
|
|
drop database mysqltest;
|
2001-12-09 23:08:24 +01:00
|
|
|
|
drop table t1;
|
2002-01-02 20:29:41 +01:00
|
|
|
|
create table t1 (i int not null);
|
|
|
|
|
insert into t1 (i) values (1),(2),(3),(4);
|
|
|
|
|
select SQL_CALC_FOUND_ROWS * from t1 limit 2;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
select FOUND_ROWS();
|
|
|
|
|
FOUND_ROWS()
|
|
|
|
|
4
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 6
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
select * from t1 where i=1;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
select FOUND_ROWS();
|
|
|
|
|
FOUND_ROWS()
|
|
|
|
|
1
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 6
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
select SQL_CALC_FOUND_ROWS * from t1 limit 2;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
select FOUND_ROWS();
|
|
|
|
|
FOUND_ROWS()
|
|
|
|
|
4
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 7
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
select * from t1 where i=1;
|
|
|
|
|
i
|
|
|
|
|
1
|
|
|
|
|
select FOUND_ROWS();
|
|
|
|
|
FOUND_ROWS()
|
|
|
|
|
1
|
|
|
|
|
show status like "Qcache_hits";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_hits 8
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
drop table t1;
|
2001-12-20 05:14:11 +01:00
|
|
|
|
flush query cache;
|
|
|
|
|
reset query cache;
|
|
|
|
|
create table t1 (a int not null);
|
|
|
|
|
insert into t1 values (1),(2),(3);
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
insert delayed into t1 values (4);
|
|
|
|
|
select a from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
2
|
|
|
|
|
3
|
|
|
|
|
4
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
drop table t1;
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 0
|
2002-07-28 21:36:34 +02:00
|
|
|
|
set GLOBAL query_cache_size=1000;
|
|
|
|
|
show global variables like "query_cache_size";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
query_cache_size 0
|
|
|
|
|
set GLOBAL query_cache_size=1100;
|
|
|
|
|
set GLOBAL query_cache_size=1200;
|
|
|
|
|
set GLOBAL query_cache_size=1300;
|
|
|
|
|
set GLOBAL query_cache_size=1400;
|
|
|
|
|
set GLOBAL query_cache_size=1500;
|
|
|
|
|
set GLOBAL query_cache_size=1600;
|
|
|
|
|
set GLOBAL query_cache_size=1700;
|
|
|
|
|
set GLOBAL query_cache_size=1800;
|
|
|
|
|
set GLOBAL query_cache_size=1900;
|
|
|
|
|
show global variables like "query_cache_size";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
query_cache_size 1024
|
2002-08-07 14:29:49 +02:00
|
|
|
|
set GLOBAL query_cache_size=1048576;
|
|
|
|
|
create table t1 (i int not null);
|
|
|
|
|
create table t2 (i int not null);
|
|
|
|
|
select * from t1;
|
|
|
|
|
i
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 1
|
|
|
|
|
create temporary table t3 (i int not null);
|
|
|
|
|
select * from t2;
|
|
|
|
|
i
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
select * from t3;
|
|
|
|
|
i
|
|
|
|
|
show status like "Qcache_queries_in_cache";
|
|
|
|
|
Variable_name Value
|
|
|
|
|
Qcache_queries_in_cache 2
|
|
|
|
|
drop table t1, t2, t3;
|