mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 15:50:51 +03:00
223 lines
3.3 KiB
Plaintext
223 lines
3.3 KiB
Plaintext
CREATE TABLE t1 (c1 INT , c2 CHAR(10), PRIMARY KEY (c1)) ENGINE = InnoDB;
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INSERT INTO t1 VALUES(0, "0");
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INSERT INTO t1 VALUES(1, "1");
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INSERT INTO t1 VALUES(2, "2");
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INSERT INTO t1 VALUES(3, "3");
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CREATE TABLE t2 (c1 INT , c2 CHAR(10), PRIMARY KEY (c1)) ENGINE = InnoDB;
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INSERT INTO t2 VALUES(0, "a");
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INSERT INTO t2 VALUES(1, "b");
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INSERT INTO t2 VALUES(2, "c");
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INSERT INTO t2 VALUES(3, "d");
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connect con1,localhost,root,,;
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connect con2,localhost,root,,;
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connection con1;
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'T1'
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SET AUTOCOMMIT=0;
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BEGIN;
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SELECT * FROM t2;
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c1 c2
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0 a
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1 b
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2 c
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3 d
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connection default;
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'T2'
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SET AUTOCOMMIT=0;
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BEGIN;
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SELECT * FROM t1;
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c1 c2
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0 0
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1 1
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2 2
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3 3
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connection con2;
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'T3'
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SET AUTOCOMMIT=0;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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BEGIN;
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SELECT * FROM t1;
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c1 c2
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0 0
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1 1
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2 2
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3 3
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SELECT * FROM t2;
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c1 c2
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0 a
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1 b
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2 c
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3 d
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connection con1;
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'T1'
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UPDATE t2 SET c1 = c1 + 100;
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SELECT * FROM t2;
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c1 c2
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100 a
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101 b
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102 c
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103 d
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COMMIT;
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connection default;
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'T2'
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UPDATE t1 SET c1 = c1 + 100;
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SELECT * FROM t1;
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c1 c2
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100 0
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101 1
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102 2
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103 3
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COMMIT;
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connection con2;
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'T3'
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SET DEBUG_SYNC='row_search_for_mysql_before_return WAIT_FOR waiting1';
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SELECT * FROM t1;;
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connection default;
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'T2'
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SET DEBUG_SYNC='now SIGNAL waiting1';
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'Signalled T3'
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connection con2;
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'T3'
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c1 c2
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0 0
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1 1
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2 2
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3 3
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connection con2;
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'T3'
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SET DEBUG_SYNC='row_search_for_mysql_before_return WAIT_FOR waiting1';
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SELECT * FROM t2;;
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connection default;
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'T2'
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SET DEBUG_SYNC='now SIGNAL waiting1';
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'Signalled T3'
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connection con2;
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'T3'
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c1 c2
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0 a
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1 b
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2 c
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3 d
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connection default;
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disconnect con1;
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disconnect con2;
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connect con1,localhost,root,,;
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connect con2,localhost,root,,;
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connection con1;
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'T1'
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SET AUTOCOMMIT=0;
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BEGIN;
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SELECT * FROM t1;
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c1 c2
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100 0
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101 1
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102 2
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103 3
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connection default;
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'T2'
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SET AUTOCOMMIT=0;
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BEGIN;
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SELECT * FROM t2;
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c1 c2
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100 a
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101 b
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102 c
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103 d
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UPDATE t2 SET c1 = c1 + 100;
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SELECT * FROM t2;
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c1 c2
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200 a
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201 b
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202 c
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203 d
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COMMIT;
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connection con2;
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'T3'
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SET AUTOCOMMIT=0;
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SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
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BEGIN;
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SELECT * FROM t1;
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c1 c2
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100 0
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101 1
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102 2
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103 3
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SELECT * FROM t2;
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c1 c2
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200 a
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201 b
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202 c
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203 d
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connection con1;
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'T1'
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UPDATE t1 SET c1 = c1 + 100;
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SELECT * FROM t1;
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c1 c2
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200 0
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201 1
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202 2
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203 3
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COMMIT;
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connection con2;
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'T3'
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SET DEBUG_SYNC='row_select_wait WAIT_FOR waiting1';
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SELECT * FROM t1;;
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connection con1;
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'T2'
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SET DEBUG_SYNC='now SIGNAL waiting1';
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'Signalled T3'
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connection con2;
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'T3'
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c1 c2
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100 0
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101 1
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102 2
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103 3
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connection con2;
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'T3'
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SET DEBUG_SYNC='row_select_wait WAIT_FOR waiting1';
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SELECT * FROM t2;;
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connection default;
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'T2'
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SET DEBUG_SYNC='now SIGNAL waiting1';
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'Signalled T3'
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connection con2;
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'T3'
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c1 c2
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200 a
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201 b
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202 c
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203 d
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connection default;
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disconnect con1;
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disconnect con2;
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DROP TABLE t1;
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DROP TABLE t2;
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#
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# Bug 21433768: NON-REPEATABLE READ WITH REPEATABLE READ ISOLATION
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#
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connect con1,localhost,root,,;
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CREATE TABLE t1(col1 INT PRIMARY KEY, col2 INT) ENGINE = InnoDB;
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INSERT INTO t1 values (1, 0), (2, 0);
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SELECT * FROM t1 ORDER BY col1;
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col1 col2
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1 0
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2 0
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START TRANSACTION;
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UPDATE t1 SET col2 = 100;
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SET DEBUG_SYNC = 'after_trx_committed_in_memory SIGNAL s1 WAIT_FOR s2';
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COMMIT;;
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connection default;
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SET DEBUG_SYNC = 'now WAIT_FOR s1';
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UPDATE t1 SET col2 = col2 + 10 where col1 = 1;
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COMMIT;
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SELECT * FROM t1 ORDER BY col1;
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col1 col2
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1 110
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2 100
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SET DEBUG_SYNC = 'now SIGNAL s2';
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connection con1;
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disconnect con1;
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connection default;
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DROP TABLE t1;
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SET DEBUG_SYNC= 'RESET';
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