85 lines
2.2 KiB
Plaintext
85 lines
2.2 KiB
Plaintext
# Scenario:
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# T1= ({R(Z), R(B)})
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# T2= ({R(C), R(B), W(B)})
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# T3= ({R(B), W(B), C}, HIGH_PRIORITY)
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#
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# Outcome: T1 must commit, T3 must commit, T2 must commit
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# after T3 (no data change).
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--source include/have_debug_sync.inc
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--source include/count_sessions.inc
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CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 INT NOT NULL) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (0, 0, 0);
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--connect(con1,localhost,root,,test)
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--connect(con2,localhost,root,,test)
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--connect(con3,localhost,root,,test)
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--echo
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--echo # On connection 1
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--connection con1
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START TRANSACTION READ ONLY;
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SELECT c1, c2 FROM t1 WHERE c1=0 LOCK IN SHARE MODE;
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--echo
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--echo # On connection 2
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--connection con2
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let $con2_id=`SELECT CONNECTION_ID()`;
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START TRANSACTION;
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--send UPDATE t1 SET c1=2 WHERE c1=0 AND c2=0
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--echo
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--echo # On connection 3
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--connection con3
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--source include/start_transaction_high_prio.inc
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--replace_result $con2_id <con2_id>
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eval SET @con2_id = $con2_id;
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let $wait_timeout = 10;
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let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist
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WHERE id = @con2_id AND INFO = 'update t1 set c1=2 where c1=0 and c2=0'
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AND STATE = 'updating';
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--source include/wait_condition.inc
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--sleep 1
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SET DEBUG_SYNC='rec_lock_add_to_waitq SIGNAL signal1 WAIT_FOR waiting1';
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--send UPDATE t1 SET c1=3 WHERE c1=0;
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--echo
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--echo # On connection 1
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--connection con1
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SET DEBUG_SYNC='now WAIT_FOR signal1';
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SET DEBUG_SYNC='now SIGNAL waiting1';
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COMMIT;
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--disconnect con1
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--echo
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--echo # On connection 3
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--connection con3
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--reap
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COMMIT;
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--disconnect con3
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--echo
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--echo # On connection 2
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--connection con2
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--reap
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COMMIT;
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--disconnect con2
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--connection default
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--let $assert_text= 'There is a 3.0.0 in t1'
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--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 3 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 1
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--source include/assert.inc
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--let $assert_text= 'There is no 0.0.0 in t1'
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--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 0 AND t1.c2 = 0 AND t1.c3 = 0, count, 1] = 0
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--source include/assert.inc
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--let $assert_text= 'There is no 2 in t1.c1'
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--let $assert_cond= [SELECT COUNT(*) AS count FROM t1 WHERE t1.c1 = 2, count, 1] = 0
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--source include/assert.inc
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DROP TABLE t1;
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--source include/wait_until_count_sessions.inc
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