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				https://github.com/MariaDB/server.git
				synced 2025-11-03 14:33:32 +03:00 
			
		
		
		
	
		
			
				
	
	
		
			212 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			212 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
SET global query_cache_type=ON;
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SET local query_cache_type=ON;
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SET SESSION STORAGE_ENGINE = InnoDB;
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drop table if exists t1,t2,t3;
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set @save_query_cache_size = @@global.query_cache_size;
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set GLOBAL query_cache_size = 1355776;
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flush status;
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set autocommit=0;
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create table t1 (a int not null) PARTITION BY KEY (a) PARTITIONS 3;
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insert into t1 values (1),(2),(3);
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select * from t1;
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a
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1
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2
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3
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	0
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drop table t1;
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commit;
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set autocommit=1;
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begin;
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create table t1 (a int not null) PARTITION BY KEY (a) PARTITIONS 3;
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insert into t1 values (1),(2),(3);
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select * from t1;
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a
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1
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2
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3
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	1
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drop table t1;
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commit;
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create table t1 (a int not null) PARTITION BY KEY (a) PARTITIONS 3;
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create table t2 (a int not null) PARTITION BY KEY (a) PARTITIONS 3;
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create table t3 (a int not null) PARTITION BY KEY (a) PARTITIONS 3;
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insert into t1 values (1),(2);
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insert into t2 values (1),(2);
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insert into t3 values (1),(2);
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select * from t1;
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a
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1
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2
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select * from t2;
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a
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1
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2
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select * from t3;
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a
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1
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2
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	3
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show status like "Qcache_hits";
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Variable_name	Value
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Qcache_hits	0
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begin;
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select * from t1;
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a
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1
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2
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select * from t2;
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a
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1
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2
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select * from t3;
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a
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1
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2
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	6
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show status like "Qcache_hits";
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Variable_name	Value
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Qcache_hits	0
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insert into t1 values (3);
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insert into t2 values (3);
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insert into t1 values (4);
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select * from t1;
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a
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1
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2
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3
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4
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select * from t2;
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a
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1
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2
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3
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select * from t3;
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a
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1
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2
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	2
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show status like "Qcache_hits";
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Variable_name	Value
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Qcache_hits	1
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commit;
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	2
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drop table t3,t2,t1;
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CREATE TABLE t1 (id int(11) NOT NULL auto_increment, PRIMARY KEY (id)) PARTITION BY HASH (id) PARTITIONS 3;
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select count(*) from t1;
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count(*)
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0
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insert into t1 (id) values (0);
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select count(*) from t1;
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count(*)
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1
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drop table t1;
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connect  connection1,localhost,root,,;
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SET SESSION STORAGE_ENGINE = InnoDB;
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SET @@autocommit=1;
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connection default;
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SHOW VARIABLES LIKE 'have_query_cache';
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Variable_name	Value
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have_query_cache	YES
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SET GLOBAL query_cache_size = 204800;
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flush status;
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SET @@autocommit=1;
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SET SESSION STORAGE_ENGINE = InnoDB;
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CREATE TABLE t2 (s1 int, s2 varchar(1000), key(s1)) PARTITION BY KEY (s1) PARTITIONS 3;
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INSERT INTO t2 VALUES (1,repeat('a',10)),(2,repeat('a',10)),(3,repeat('a',10)),(4,repeat('a',10));
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COMMIT;
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START TRANSACTION;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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0
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UPDATE t2 SET s2 = 'w' WHERE s1 = 3;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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1
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	0
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connection connection1;
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START TRANSACTION;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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0
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INSERT INTO t2 VALUES (5,'w');
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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1
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COMMIT;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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1
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	0
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connection default;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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1
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COMMIT;
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	0
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	1
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connection connection1;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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START TRANSACTION;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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INSERT INTO t2 VALUES (6,'w');
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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3
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connection default;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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START TRANSACTION;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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DELETE from t2 WHERE s1=3;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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1
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COMMIT;
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connection connection1;
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COMMIT;
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SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
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count(*)
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2
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show status like "Qcache_queries_in_cache";
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Variable_name	Value
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Qcache_queries_in_cache	1
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show status like "Qcache_hits";
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Variable_name	Value
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Qcache_hits	1
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disconnect connection1;
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connection default;
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set @@global.query_cache_size = @save_query_cache_size;
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drop table t2;
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SET global query_cache_type=default;
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