mirror of
https://github.com/MariaDB/server.git
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775cba4d0f
- FLUSH GLOBAL STATUS now resets most global_status_vars.
At this stage, this is mainly to be used for testing.
- FLUSH SESSION STATUS added as an alias for FLUSH STATUS.
- FLUSH STATUS does not require any privilege (before required RELOAD).
- FLUSH GLOBAL STATUS requires RELOAD privilege.
- All global status reset moved to FLUSH GLOBAL STATUS.
- Replication semisync status variables are now reset by
FLUSH GLOBAL STATUS.
- In test cases, the only changes are:
- Replace FLUSH STATUS with FLUSH GLOBAL STATUS
- Replace FLUSH STATUS with FLUSH STATUS; FLUSH GLOBAL STATUS.
This was only done in a few tests where the test was using SHOW STATUS
for both local and global variables.
- Uptime_since_flush_status is now always provided, independent if
ENABLED_PROFILING is enabled when compiling MariaDB.
- @@global.Uptime_since_flush_status is reset on FLUSH GLOBAL STATUS
and @@session.Uptime_since_flush_status is reset on FLUSH SESSION STATUS.
- When connected, @@session.Uptime_since_flush_status is set to 0.
240 lines
5.6 KiB
Text
240 lines
5.6 KiB
Text
SET global query_cache_type=ON;
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SET local query_cache_type=ON;
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SET SESSION DEFAULT_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 global status;
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set autocommit=0;
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create table t1 (a int not null);
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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);
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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);
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create table t2 (a int not null);
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create table t3 (a int not null);
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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));
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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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CREATE TABLE t1 ( id int(10) NOT NULL auto_increment, a varchar(25) default NULL, PRIMARY KEY (id), UNIQUE KEY a (a));
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CREATE TABLE t2 ( id int(10) NOT NULL auto_increment, b varchar(25) default NULL, PRIMARY KEY (id), UNIQUE KEY b (b));
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CREATE TABLE t3 ( id int(10) NOT NULL auto_increment, t1_id int(10) NOT NULL default '0', t2_id int(10) NOT NULL default '0', state int(11) default NULL, PRIMARY KEY (id), UNIQUE KEY t1_id (t1_id,t2_id), KEY t2_id (t2_id,t1_id), CONSTRAINT `t3_ibfk_1` FOREIGN KEY (`t1_id`) REFERENCES `t1` (`id`), CONSTRAINT `t3_ibfk_2` FOREIGN KEY (`t2_id`) REFERENCES `t2` (`id`));
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INSERT INTO t1 VALUES (1,'me');
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INSERT INTO t2 VALUES (1,'you');
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INSERT INTO t3 VALUES (2,1,1,2);
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delete from t3 where t1_id = 1 and t2_id = 1;
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select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
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id a
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begin;
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insert into t3 VALUES ( NULL, 1, 1, 2 );
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insert into t3 VALUES ( NULL, 1, 1, 2 );
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ERROR 23000: Duplicate entry '1-1' for key 't1_id'
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commit;
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select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
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id a
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1 me
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drop table t3,t2,t1;
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connect connection1,localhost,root,,;
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SET SESSION DEFAULT_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 global status;
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SET @@autocommit=1;
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SET SESSION DEFAULT_STORAGE_ENGINE = InnoDB;
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CREATE TABLE t2 (s1 int, s2 varchar(1000), key(s1));
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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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CREATE TABLE t1 (a INT) ENGINE=InnoDB;
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BEGIN;
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INSERT INTO t1 VALUES(1);
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ROLLBACK WORK AND CHAIN NO RELEASE;
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SELECT a FROM t1;
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a
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ROLLBACK WORK AND CHAIN NO RELEASE;
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SELECT a FROM t1;
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a
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ROLLBACK;
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DROP TABLE t1;
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