mirror of
https://github.com/MariaDB/server.git
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44 lines
1.1 KiB
Plaintext
44 lines
1.1 KiB
Plaintext
'#--------------------FN_DYNVARS_048_01-------------------------#'
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SET @start_value= @@global.innodb_table_locks;
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SELECT @start_value;
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@start_value
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1
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SET @@global.innodb_table_locks = OFF;
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connect con1,localhost,root,,,,;
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connection con1;
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SELECT @@global.innodb_table_locks;
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@@global.innodb_table_locks
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0
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SELECT @@session.innodb_table_locks;
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@@session.innodb_table_locks
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0
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disconnect con1;
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'#--------------------FN_DYNVARS_048_02-------------------------#'
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'----check when innodb_table_locks = ON and autocommit = OFF---'
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connect con2,localhost,root,,,,;
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connection default;
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a INT) ENGINE=INNODB;
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SET @@autocommit = OFF;
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SET @@innodb_table_locks = ON;
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BEGIN;
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INSERT INTO t1 VALUES(1);
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SELECT * FROM t1 FOR UPDATE;
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a
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1
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connection con2;
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SET @@innodb_table_locks = ON;
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SET @@autocommit = OFF;
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LOCK TABLES t1 WRITE;
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connection default;
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COMMIT;
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connection con2;
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UNLOCK tables;
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DROP TABLE t1;
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disconnect con2;
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connection default;
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SET @@global.innodb_table_locks= @start_value;
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SELECT @@global.innodb_table_locks;
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@@global.innodb_table_locks
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1
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