mirror of
https://github.com/MariaDB/server.git
synced 2025-01-31 02:51:44 +01:00
63 lines
1.2 KiB
Text
63 lines
1.2 KiB
Text
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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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connect con1,localhost,root,,;
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connect con2,localhost,root,,;
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connect con3,localhost,root,,;
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connect con4,localhost,root,,;
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connect con5,localhost,root,,;
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connect con6,localhost,root,,;
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connection default;
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SET AUTOCOMMIT=0;
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BEGIN;
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SELECT * FROM t1 FOR UPDATE;
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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 t1 WHERE c1 <= 3;
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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 default;
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SET DEBUG_SYNC='now WAIT_FOR waiting4';
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SET DEBUG_SYNC= 'RESET';
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SELECT trx_state, trx_query, trx_autocommit_non_locking
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FROM INFORMATION_SCHEMA.INNODB_TRX
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WHERE trx_state = 'LOCK WAIT'
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ORDER BY trx_query;
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trx_state trx_query trx_autocommit_non_locking
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LOCK WAIT SELECT COUNT(*) FROM t1 LOCK IN SHARE MODE 0
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LOCK WAIT SELECT COUNT(*) FROM t1 WHERE c1 >= 0 0
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INSERT INTO t1 VALUES(4, '4');
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COMMIT;
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connection con6;
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SELECT * FROM t1 WHERE c1 <= 4;
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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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XA END '1';
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XA PREPARE '1';
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XA ROLLBACK '1';
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disconnect con6;
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disconnect con2;
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disconnect con3;
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disconnect con5;
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connection con1;
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COUNT(*)
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5
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disconnect con1;
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connection con4;
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COUNT(*)
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5
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disconnect con4;
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connection default;
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DROP TABLE t1;
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