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# Scenario: Test deadlock with high priority transactions
#  T1= ({R(A), W(A)}, HIGH_PRIORITY)
#  T2= ({R(B), W(B)}, HIGH_PRIORITY)
#  T1= ({R(B), W(B)}, HIGH_PRIORITY) --> T1 Wait
#  T2= ({R(A), W(A)}, HIGH_PRIORITY) --> T2 Dead Lock
#
# Outcome: T2 should error.

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

CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0);
INSERT INTO t1 VALUES (10);

--connect(con1,localhost,root,,test)
--connect(con2,localhost,root,,test)

--echo
--echo # On connection 1
--connection con1
--source include/start_transaction_high_prio.inc
UPDATE t1 SET c1=1 WHERE c1=0;

--echo
--echo # On connection 2
--connection con2
--source include/start_transaction_high_prio.inc
UPDATE t1 SET c1=12 WHERE c1=10;

--echo
--echo # On connection 1
--connection con1
let $con1_id=`SELECT CONNECTION_ID()`;
--echo # Send
--send UPDATE t1 SET c1=11 WHERE c1=10;

--echo
--echo # On connection 2
--connection con2

--disable_query_log
eval SET @con1_id = $con1_id;
--enable_query_log

let $wait_timeout = 10;
let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE id = @con1_id AND INFO = 'UPDATE t1 SET c1=11 WHERE c1=10'
AND STATE = 'updating';
--source include/wait_condition.inc
--sleep 1

--error ER_LOCK_DEADLOCK
UPDATE t1 SET c1=2 WHERE c1=0;

--disconnect con2

--echo
--echo # On connection 1
--connection con1
--echo # Reap UPDATE t1 SET c1=11 WHERE c1=10
--reap
COMMIT;
--disconnect con1

--connection default
--let $assert_text= 'There is a 1 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 1, count, 1] = 1
--source include/assert.inc

--let $assert_text= 'There is no 2 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 2, count, 1] = 0
--source include/assert.inc

--let $assert_text= 'There is no 0 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0, count, 1] = 0
--source include/assert.inc

DROP TABLE t1;

--source include/wait_until_count_sessions.inc

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