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CREATE TABLE t1 (f1 INTEGER AUTO_INCREMENT PRIMARY KEY, node VARCHAR(10)) ENGINE=InnoDB;
SELECT @@auto_increment_increment = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size');
@@auto_increment_increment = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size')
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auto_increment_offset_differ
1
INSERT INTO t1 VALUES (DEFAULT, 'node1');;
INSERT INTO t1 VALUES (DEFAULT, 'node2');;
SELECT @@auto_increment_increment = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size');
@@auto_increment_increment = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size')
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auto_increment_offset_differ
1
INSERT INTO t1 VALUES (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2'), (DEFAULT, 'node2');;
INSERT INTO t1 VALUES (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1'), (DEFAULT, 'node1');;
SELECT COUNT(*) = 22 FROM t1;
COUNT(*) = 22
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SELECT COUNT(DISTINCT f1) = 22 FROM t1;
COUNT(DISTINCT f1) = 22
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SELECT COUNT(*) = 22 FROM t1;
COUNT(*) = 22
1
SELECT COUNT(DISTINCT f1) = 22 FROM t1;
COUNT(DISTINCT f1) = 22
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DROP TABLE t1;
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