#
# Bug#18591145 - SOME MONOTONICALLY INCREASING STATUS VARIABLES DECREASES UNEXPECTEDLY
#
CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT, name VARCHAR(64), val VARCHAR(1024));
# Insert 1 tuple to increment com_insert status.
INSERT INTO t1(name, val) VALUES ('dummy', 0);
connect  con1, localhost, root,,;
SET DEBUG_SYNC='before_preparing_global_status_array SIGNAL change_user WAIT_FOR continue';
SET DEBUG_SYNC='after_preparing_global_status_array SIGNAL continue_change_user';
INSERT INTO t1(name, val) SELECT * FROM INFORMATION_SCHEMA.global_status WHERE variable_name='com_insert';;
connection default;
SET DEBUG_SYNC='now WAIT_FOR change_user';
SET DEBUG_SYNC='thd_cleanup_start SIGNAL continue WAIT_FOR continue_change_user';
connection con1;
SET DEBUG_SYNC='RESET';
connection default;
INSERT INTO t1(name, val)
SELECT * FROM INFORMATION_SCHEMA.global_status WHERE variable_name='com_insert';
SELECT (SELECT val FROM t1 WHERE id = 2) - (SELECT val FROM t1 WHERE id = 3);
(SELECT val FROM t1 WHERE id = 2) - (SELECT val FROM t1 WHERE id = 3)
0
disconnect con1;
DROP TABLE t1;