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# Scenario:
# T1= ({R(Z), R(B), W(Z), W(B)})
# T2= ({R(C), R(B), W(B)})
# T3= ({R(B), W(B), C}, HIGH_PRIORITY)
#
# Outcome: T1 must abort, T3 must commit, T2 must commit
# after T3.
#
# Lock -> {T1 granted, T2 waiting, T3 waiting};
# Then T3 jumps the queue:
# Lock -> {T1 granted, T3 waiting, T2 waiting};
# T3 Rolls back T1
# Lock -> {T3 granted, T2 waiting}
--source include/count_sessions.inc
CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 INT NOT NULL) ENGINE=InnoDB;
INSERT INTO t1 VALUES (0, 0, 0);
--connect(con1,localhost,root,,test)
--connect(con2,localhost,root,,test)
--connect(con3,localhost,root,,test)
--echo
--echo # On connection 1
--connection con1
START TRANSACTION;
UPDATE t1 SET c1=1, c2=1 WHERE c1=0 AND c2=0;
--echo
--echo # On connection 2
--connection con2
START TRANSACTION;
--send UPDATE t1 SET c2=2 WHERE c1=0 AND c2=3
--echo
--echo # On connection 3
--connection con3
--source include/start_transaction_high_prio.inc
UPDATE t1 SET c2=3 WHERE c2=0;
COMMIT;
--disconnect con3
--echo
--echo # On connection 1
--connection con1
--error ER_ERROR_DURING_COMMIT
COMMIT;
--disconnect con1
--echo
--echo # On connection 2
--connection con2
--reap
COMMIT;
--disconnect con2
--connection default
--let $assert_text= 'There is no 3 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0 AND t1.c2 = 3 AND t1.c3 = 0, count, 1] = 0
--source include/assert.inc
--let $assert_text= 'There is a 2 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0 AND t1.c2 = 2 AND t1.c3 = 0, count, 1] = 1
--source include/assert.inc
--let $assert_text= 'There is no 1 in t1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 1 AND t1.c2 = 1 AND t1.c3 = 0, count, 1] = 0
--source include/assert.inc
DROP TABLE t1;
--source include/wait_until_count_sessions.inc
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