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5db56a106b
in a deadlock-free manner. This splits locking the global read lock in two steps. This fixes a consequence of this bug, known as: BUG#4953 'mysqldump --master-data may report incorrect binlog position if using InnoDB' And a test.
23 lines
337 B
Text
23 lines
337 B
Text
drop table if exists t1;
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create table t1 (a int) type=innodb;
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begin;
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insert into t1 values(1);
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flush tables with read lock;
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select * from t1;
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a
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commit;
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select * from t1;
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a
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unlock tables;
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begin;
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select * from t1 for update;
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a
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1
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begin;
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select * from t1 for update;
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flush tables with read lock;
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commit;
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a
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1
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unlock tables;
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drop table t1;
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