--source include/have_innodb.inc
--source include/count_sessions.inc
--source include/have_debug.inc

--echo #
--echo # Bug#25966845 INSERT ON DUPLICATE KEY GENERATE A DEADLOCK
--echo #

CREATE TABLE t1(f1 int primary key,
                f2 int, f3 int, unique key(f2))engine=innodb;

SHOW CREATE TABLE t1;

INSERT INTO t1(f1, f2, f3) VALUES(1, 10, 100);

--echo # Connection default
BEGIN;
INSERT INTO t1 VALUES(2, 20, 300) ON DUPLICATE KEY UPDATE f3 = 500;

--echo # Connection other:
--connect (other,localhost,root,,test,,)
BEGIN;
SET DEBUG_SYNC = 'ib_after_row_insert_step SIGNAL default_commit';
--send INSERT INTO t1 VALUES(2, 10, 200) ON DUPLICATE KEY UPDATE f3 = 120

--echo # Connection default
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR default_commit';
COMMIT;

--echo # Connection other
connection other;
--reap
COMMIT;

connection default;
disconnect other;

--echo # Verify Results:
SELECT * FROM t1;

SET DEBUG_SYNC ='RESET';
DROP TABLE t1;
--source include/wait_until_count_sessions.inc