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33 lines
1,011 B
Text
33 lines
1,011 B
Text
include/master-slave.inc
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[connection master]
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CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
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create table t1(n int);
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insert into t1 values(get_lock("lock",2));
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select get_lock("lock",2);
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get_lock("lock",2)
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1
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select release_lock("lock");
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release_lock("lock")
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1
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select get_lock("lock",3);
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get_lock("lock",3)
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1
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select * from t1;
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n
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1
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select is_free_lock("lock"), is_used_lock("lock") = connection_id();
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is_free_lock("lock") is_used_lock("lock") = connection_id()
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0 1
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explain extended select is_free_lock("lock"), is_used_lock("lock");
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select is_free_lock('lock') AS `is_free_lock("lock")`,is_used_lock('lock') AS `is_used_lock("lock")`
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select is_free_lock("lock2");
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is_free_lock("lock2")
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1
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select is_free_lock(NULL);
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is_free_lock(NULL)
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NULL
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drop table t1;
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include/rpl_end.inc
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