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connection node_2;
connection node_1;
CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
connection node_2;
RESET QUERY CACHE;
FLUSH GLOBAL STATUS;
SELECT COUNT(*) FROM t1;
COUNT(*)
1
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
VARIABLE_VALUE = 1
1
SELECT COUNT(*) FROM t1;
COUNT(*)
1
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 1
1
connection node_1;
INSERT INTO t1 VALUES (2);
connection node_2;
FLUSH GLOBAL STATUS;
SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
VARIABLE_VALUE = 0
1
SELECT COUNT(*) FROM t1;
COUNT(*)
2
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
VARIABLE_VALUE = 1
1
SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 0
1
SELECT COUNT(*) FROM t1;
COUNT(*)
2
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 1
1
connection node_1;
ALTER TABLE t1 ADD COLUMN f2 INTEGER;
connection node_2;
FLUSH GLOBAL STATUS;
SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
VARIABLE_VALUE = 0
1
SELECT COUNT(*) FROM t1;
COUNT(*)
2
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
VARIABLE_VALUE = 1
1
SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 0
1
SELECT COUNT(*) FROM t1;
COUNT(*)
2
SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
VARIABLE_VALUE = 1
1
DROP TABLE t1;
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