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	Change the order or queries, so that result of "uptime_since_flush" comparison does not depend on timing. Also, improve the execution speed of the test by ca. 25 percent, removing or reducing the sleeps. There is no need to sleep more than 1 second in this test.
		
			
				
	
	
		
			519 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			519 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
set @old_concurrent_insert= @@global.concurrent_insert;
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set @@global.concurrent_insert= 0;
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SET @old_log_output = @@global.log_output;
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SET GLOBAL LOG_OUTPUT = 'FILE';
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connect  con1,localhost,root,,;
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connect  con2,localhost,root,,;
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connection default;
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flush global status;
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show status like 'Table_lock%';
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Variable_name	Value
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Table_locks_immediate	0
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Table_locks_waited	0
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select * from information_schema.session_status where variable_name like 'Table_lock%';
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VARIABLE_NAME	VARIABLE_VALUE
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TABLE_LOCKS_IMMEDIATE	0
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TABLE_LOCKS_WAITED	0
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set sql_log_bin=0;
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set @old_general_log = @@global.general_log;
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set global general_log = 'OFF';
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drop table if exists t1;
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create table t1(n int) engine=myisam;
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insert into t1 values(1);
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select get_lock('mysqltest_lock', 100);
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get_lock('mysqltest_lock', 100)
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1
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connection con2;
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# Sending:
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update t1 set n = get_lock('mysqltest_lock', 100);
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connection con1;
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# Wait for the first UPDATE to get blocked.
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# Sending:
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update t1 set n = 3;
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connection default;
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# wait for the second UPDATE to get blocked
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select release_lock('mysqltest_lock');
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release_lock('mysqltest_lock')
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1
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connection con2;
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# Reaping first UPDATE
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select release_lock('mysqltest_lock');
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release_lock('mysqltest_lock')
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1
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connection con1;
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# Reaping second UPDATE
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show status like 'Table_locks_waited';
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Variable_name	Value
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Table_locks_waited	1
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connection default;
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drop table t1;
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set global general_log = @old_general_log;
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disconnect con2;
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disconnect con1;
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select 1;
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1
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1
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show status like 'last_query_cost';
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Variable_name	Value
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Last_query_cost	0.000000
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create table t1 (a int);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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select * from t1 where a=6;
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a
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6
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6
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6
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6
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6
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show status like 'last_query_cost';
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Variable_name	Value
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Last_query_cost	0.017856
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show status like 'last_query_cost';
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Variable_name	Value
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Last_query_cost	0.017856
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select 1;
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1
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1
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show status like 'last_query_cost';
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Variable_name	Value
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Last_query_cost	0.000000
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drop table t1;
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FLUSH GLOBAL STATUS;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name	Value
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Max_used_connections	1
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SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
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VARIABLE_NAME	VARIABLE_VALUE
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MAX_USED_CONNECTIONS	1
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SET @save_thread_cache_size=@@thread_cache_size;
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SET GLOBAL thread_cache_size=3;
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connect  con1,localhost,root,,;
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connect  con2,localhost,root,,;
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connection con1;
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disconnect con2;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name	Value
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Max_used_connections	3
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SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
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VARIABLE_NAME	VARIABLE_VALUE
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MAX_USED_CONNECTIONS	3
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FLUSH GLOBAL STATUS;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name	Value
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Max_used_connections	2
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SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
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VARIABLE_NAME	VARIABLE_VALUE
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MAX_USED_CONNECTIONS	2
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connect  con2,localhost,root,,;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name	Value
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Max_used_connections	3
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SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
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VARIABLE_NAME	VARIABLE_VALUE
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MAX_USED_CONNECTIONS	3
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connect  con3,localhost,root,,;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name	Value
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Max_used_connections	4
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SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
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VARIABLE_NAME	VARIABLE_VALUE
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MAX_USED_CONNECTIONS	4
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connection default;
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SET GLOBAL thread_cache_size=@save_thread_cache_size;
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disconnect con3;
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disconnect con2;
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disconnect con1;
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CREATE TABLE t1 ( a INT );
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INSERT INTO t1 VALUES (1), (2);
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SELECT a FROM t1 LIMIT 1;
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a
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1
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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EXPLAIN SELECT a FROM t1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
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a
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1
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2
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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EXPLAIN SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
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2	UNION	t1	ALL	NULL	NULL	NULL	NULL	2	
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NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	Using filesort
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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SELECT a IN (SELECT a FROM t1) FROM t1 LIMIT 1;
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a IN (SELECT a FROM t1)
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1
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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SELECT (SELECT a FROM t1 LIMIT 1) x FROM t1 LIMIT 1;
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x
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1
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.010348
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SELECT * FROM t1 a, t1 b LIMIT 1;
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a	a
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1	1
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SHOW SESSION STATUS LIKE 'Last_query_cost';
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Variable_name	Value
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Last_query_cost	0.021190
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DROP TABLE t1;
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connect  con1,localhost,root,,;
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show status like 'com_show_status';
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Variable_name	Value
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Com_show_status	3
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show status like 'hand%write%';
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Variable_name	Value
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Handler_tmp_write	0
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Handler_write	0
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show status like '%\_tmp%';
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Variable_name	Value
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Created_tmp_disk_tables	0
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Created_tmp_files	0
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Created_tmp_tables	0
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Handler_tmp_delete	0
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Handler_tmp_update	0
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Handler_tmp_write	0
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Max_tmp_space_used	0
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Rows_tmp_read	5
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show status like 'hand%write%';
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Variable_name	Value
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Handler_tmp_write	0
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Handler_write	0
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show status like '%\_tmp%';
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Variable_name	Value
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Created_tmp_disk_tables	0
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Created_tmp_files	0
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Created_tmp_tables	0
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Handler_tmp_delete	0
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Handler_tmp_update	0
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Handler_tmp_write	0
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Max_tmp_space_used	0
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Rows_tmp_read	15
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show status like 'com_show_status';
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Variable_name	Value
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Com_show_status	8
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rnd_diff	tmp_table_diff
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32	8
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disconnect con1;
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connection default;
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flush status;
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show status like 'Com%function';
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Variable_name	Value
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Com_alter_function	0
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Com_create_function	0
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Com_drop_function	0
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create function f1 (x INTEGER) returns integer
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begin
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declare ret integer;
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set ret = x * 10;
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return ret;
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end //
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drop function f1;
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show status like 'Com%function';
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Variable_name	Value
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Com_alter_function	0
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Com_create_function	1
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Com_drop_function	1
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connect  root, localhost, root,,test;
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connection root;
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create database db37908;
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create table db37908.t1(f1 int);
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insert into db37908.t1 values(1);
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create user mysqltest_1@localhost;
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grant usage,execute on test.* to mysqltest_1@localhost;
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create procedure proc37908() begin select 1; end |
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create function func37908() returns int sql security invoker
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return (select * from db37908.t1 limit 1)|
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connect  user1,localhost,mysqltest_1,,test;
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connection user1;
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select * from db37908.t1;
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ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for table `db37908`.`t1`
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show status where variable_name ='uptime' and 2 in (select * from db37908.t1);
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ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for table `db37908`.`t1`
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show procedure status where name ='proc37908' and 1 in (select f1 from db37908.t1);
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ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for table `db37908`.`t1`
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show function status where name ='func37908' and 1 in (select func37908());
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ERROR 42000: SELECT command denied to user 'mysqltest_1'@'localhost' for table `db37908`.`t1`
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connection default;
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disconnect user1;
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disconnect root;
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drop database db37908;
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drop procedure proc37908;
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drop function func37908;
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REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
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DROP USER mysqltest_1@localhost;
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connect  con1,localhost,root,,;
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connection con1;
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DROP PROCEDURE IF EXISTS p1;
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DROP FUNCTION IF EXISTS f1;
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CREATE FUNCTION f1() RETURNS INTEGER
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BEGIN
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DECLARE foo INTEGER;
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DECLARE bar INTEGER;
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SET foo=1;
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SET bar=2;
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RETURN foo;
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END $$
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CREATE PROCEDURE p1()
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BEGIN
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SELECT 1;
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END $$
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SELECT f1();
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f1()
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1
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CALL p1();
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1
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1
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SELECT 9;
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9
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9
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disconnect con1;
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connection default;
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DROP PROCEDURE p1;
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DROP FUNCTION f1;
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flush status;
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create table t1 (a int not null auto_increment primary key, g int, b blob);
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insert into t1 (g,b) values (1,'a'), (2, 'b'), (3, 'b'), (1, 'c');
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select * from t1;
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a	g	b
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1	1	a
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2	2	b
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3	3	b
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4	1	c
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select b, count(*) from t1 group by b;
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b	count(*)
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a	1
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b	2
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c	1
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select g, count(*) from t1 group by g;
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g	count(*)
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1	2
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2	1
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3	1
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show status like 'Row%';
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Variable_name	Value
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Rows_read	12
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Rows_sent	10
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Rows_tmp_read	14
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show status like 'Handler%';
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Variable_name	Value
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Handler_commit	0
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Handler_delete	0
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Handler_discover	0
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						|
Handler_external_lock	0
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Handler_icp_attempts	0
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Handler_icp_match	0
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Handler_mrr_init	0
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Handler_mrr_key_refills	0
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Handler_mrr_rowid_refills	0
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Handler_prepare	0
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Handler_read_first	0
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Handler_read_key	9
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Handler_read_last	0
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Handler_read_next	0
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Handler_read_prev	0
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Handler_read_retry	0
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Handler_read_rnd	7
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Handler_read_rnd_deleted	0
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Handler_read_rnd_next	23
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Handler_rollback	0
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Handler_savepoint	0
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Handler_savepoint_rollback	0
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Handler_tmp_delete	0
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Handler_tmp_update	2
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Handler_tmp_write	7
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Handler_update	0
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Handler_write	4
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show status like '%_tmp%';
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Variable_name	Value
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Created_tmp_disk_tables	1
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						|
Created_tmp_files	0
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						|
Created_tmp_tables	2
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						|
Handler_tmp_delete	0
 | 
						|
Handler_tmp_update	2
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Handler_tmp_write	7
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						|
Max_tmp_space_used	32768
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Rows_tmp_read	44
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drop table t1;
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CREATE TABLE t1 (i int(11) DEFAULT NULL, KEY i (i) ) ENGINE=MyISAM;
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insert into t1 values (1),(2),(3),(4),(5);
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flush status;
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						|
select * from t1 where i=5 union select * from t1 where i=5;
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i
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5
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show status like "handler%";
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						|
Variable_name	Value
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						|
Handler_commit	0
 | 
						|
Handler_delete	0
 | 
						|
Handler_discover	0
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						|
Handler_external_lock	0
 | 
						|
Handler_icp_attempts	0
 | 
						|
Handler_icp_match	0
 | 
						|
Handler_mrr_init	0
 | 
						|
Handler_mrr_key_refills	0
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						|
Handler_mrr_rowid_refills	0
 | 
						|
Handler_prepare	0
 | 
						|
Handler_read_first	0
 | 
						|
Handler_read_key	2
 | 
						|
Handler_read_last	0
 | 
						|
Handler_read_next	2
 | 
						|
Handler_read_prev	0
 | 
						|
Handler_read_retry	0
 | 
						|
Handler_read_rnd	0
 | 
						|
Handler_read_rnd_deleted	1
 | 
						|
Handler_read_rnd_next	2
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						|
Handler_rollback	0
 | 
						|
Handler_savepoint	0
 | 
						|
Handler_savepoint_rollback	0
 | 
						|
Handler_tmp_delete	0
 | 
						|
Handler_tmp_update	0
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						|
Handler_tmp_write	2
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						|
Handler_update	0
 | 
						|
Handler_write	0
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						|
drop table t1;
 | 
						|
#
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						|
# MDEV-11153 - Introduce status variables for table cache monitoring and
 | 
						|
#              tuning
 | 
						|
#
 | 
						|
SET @old_table_open_cache= @@table_open_cache;
 | 
						|
SET @@global.table_open_cache=10;
 | 
						|
FLUSH TABLES;
 | 
						|
FLUSH STATUS;
 | 
						|
SHOW STATUS LIKE 'Table_open_cache%';
 | 
						|
Variable_name	Value
 | 
						|
Table_open_cache_active_instances	1
 | 
						|
Table_open_cache_hits	0
 | 
						|
Table_open_cache_misses	0
 | 
						|
Table_open_cache_overflows	0
 | 
						|
SHOW STATUS LIKE 'Table_open_cache%';
 | 
						|
Variable_name	Value
 | 
						|
Table_open_cache_active_instances	1
 | 
						|
Table_open_cache_hits	72
 | 
						|
Table_open_cache_misses	18
 | 
						|
Table_open_cache_overflows	8
 | 
						|
FLUSH TABLES;
 | 
						|
FLUSH STATUS;
 | 
						|
SET @@global.table_open_cache= @old_table_open_cache;
 | 
						|
#
 | 
						|
# MDEV-14505 - Threads_running becomes scalability bottleneck
 | 
						|
#
 | 
						|
# Session status for Threads_running is currently always 1.
 | 
						|
SHOW STATUS LIKE 'Threads_running';
 | 
						|
Variable_name	Value
 | 
						|
Threads_running	1
 | 
						|
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='THREADS_RUNNING';
 | 
						|
VARIABLE_VALUE
 | 
						|
1
 | 
						|
FLUSH STATUS;
 | 
						|
SHOW STATUS LIKE 'Threads_running';
 | 
						|
Variable_name	Value
 | 
						|
Threads_running	1
 | 
						|
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='THREADS_RUNNING';
 | 
						|
VARIABLE_VALUE
 | 
						|
1
 | 
						|
#
 | 
						|
# MDEV-15915 Add Feature_json status variable.
 | 
						|
#
 | 
						|
SHOW STATUS LIKE 'Feature_json';
 | 
						|
Variable_name	Value
 | 
						|
Feature_json	0
 | 
						|
select json_valid('123');
 | 
						|
json_valid('123')
 | 
						|
1
 | 
						|
SHOW STATUS LIKE 'Feature_json';
 | 
						|
Variable_name	Value
 | 
						|
Feature_json	1
 | 
						|
select * from json_table ('{}', '$' COLUMNS(x FOR ORDINALITY)) a;
 | 
						|
x
 | 
						|
1
 | 
						|
SHOW STATUS LIKE 'Feature_json';
 | 
						|
Variable_name	Value
 | 
						|
Feature_json	2
 | 
						|
connection default;
 | 
						|
set @@global.concurrent_insert= @old_concurrent_insert;
 | 
						|
SET GLOBAL log_output = @old_log_output;
 | 
						|
#
 | 
						|
# MDEV-30543 New status variable: Max_used_connections_time
 | 
						|
#
 | 
						|
FLUSH GLOBAL STATUS;
 | 
						|
connect  con1,localhost,root,,;
 | 
						|
connect  con2,localhost,root,,;
 | 
						|
connection con1;
 | 
						|
disconnect con2;
 | 
						|
SELECT 'DTVALUE' = 'DTVALUE' AS expect_1;
 | 
						|
expect_1
 | 
						|
1
 | 
						|
connect  con3,localhost,root,,;
 | 
						|
connect  con4,localhost,root,,;
 | 
						|
SELECT 'DTVALUE' < 'DTVALUE' as expect_1;
 | 
						|
expect_1
 | 
						|
1
 | 
						|
disconnect con4;
 | 
						|
disconnect con3;
 | 
						|
disconnect con1;
 | 
						|
connection default;
 | 
						|
# Test Uptime_since_flush_status
 | 
						|
# All results below should be 1
 | 
						|
flush global status;
 | 
						|
flush session status;
 | 
						|
select $global_flush_status >= $local_flush_status as "1";
 | 
						|
1
 | 
						|
1
 | 
						|
flush session status;
 | 
						|
select $new_global_flush_status >= $global_flush_status as "1";
 | 
						|
1
 | 
						|
1
 | 
						|
select $new_local_flush_status < $new_global_flush_status as "1";
 | 
						|
1
 | 
						|
1
 | 
						|
flush global status;
 | 
						|
select $new_local_flush_status  >= $local_flush_status as "1";
 | 
						|
1
 | 
						|
1
 | 
						|
select $new_global_flush_status < $new_local_flush_status as "1";
 | 
						|
1
 | 
						|
1
 | 
						|
create or replace table t1 (a int, key(a)) engine=MyISAM;
 | 
						|
insert into t1 values (1),(2);
 | 
						|
connect con1,localhost,root;
 | 
						|
set old_mode=OLD_FLUSH_STATUS;
 | 
						|
Warnings:
 | 
						|
Warning	1287	'OLD_FLUSH_STATUS' is deprecated and will be removed in a future release
 | 
						|
insert into t1 values (3),(4);
 | 
						|
drop table t1;
 | 
						|
select t1.variable_name, t1.variable_value as global_value, t2.variable_value as session_value
 | 
						|
from information_schema.global_status t1 join information_schema.session_status t2
 | 
						|
on t1.variable_name = t2.variable_name
 | 
						|
where t1.variable_name in ('Key_writes','Com_insert');
 | 
						|
variable_name	global_value	session_value
 | 
						|
COM_INSERT	2	1
 | 
						|
KEY_WRITES	2	2
 | 
						|
flush status;
 | 
						|
select t1.variable_name, t1.variable_value as global_value, t2.variable_value as session_value
 | 
						|
from information_schema.global_status t1 join information_schema.session_status t2
 | 
						|
on t1.variable_name = t2.variable_name
 | 
						|
where t1.variable_name in ('Key_writes','Com_insert');
 | 
						|
variable_name	global_value	session_value
 | 
						|
COM_INSERT	2	0
 | 
						|
KEY_WRITES	0	0
 | 
						|
disconnect con1;
 | 
						|
connection default;
 | 
						|
# end of 11.5 tests
 |