46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
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SET @start_global_value = @@global.sync_relay_log;
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SELECT @start_global_value;
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#
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# exists as global only
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#
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select @@global.sync_relay_log;
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
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select @@session.sync_relay_log;
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show global variables like 'sync_relay_log';
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show session variables like 'sync_relay_log';
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--disable_warnings
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select * from performance_schema.global_variables where variable_name='sync_relay_log';
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select * from performance_schema.session_variables where variable_name='sync_relay_log';
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--enable_warnings
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#
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# show that it's writable
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#
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set global sync_relay_log=1;
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select @@global.sync_relay_log;
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--error ER_GLOBAL_VARIABLE
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set session sync_relay_log=1;
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#
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# incorrect types
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#
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--error ER_WRONG_TYPE_FOR_VAR
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set global sync_relay_log=1.1;
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--error ER_WRONG_TYPE_FOR_VAR
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set global sync_relay_log=1e1;
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--error ER_WRONG_TYPE_FOR_VAR
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set global sync_relay_log="foo";
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#
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# min/max values
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#
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set global sync_relay_log=0;
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select @@global.sync_relay_log;
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set global sync_relay_log=cast(-1 as unsigned int);
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select @@global.sync_relay_log;
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SET @@global.sync_relay_log = @start_global_value;
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SELECT @@global.sync_relay_log;
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