50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
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SET @start_global_value = @@global.slave_checkpoint_period;
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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.slave_checkpoint_period;
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
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select @@session.slave_checkpoint_period;
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--replace_regex /[0-9]+/period/
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show global variables like 'slave_checkpoint_period';
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--replace_regex /[0-9]+/period/
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show session variables like 'slave_checkpoint_period';
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--disable_warnings
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--replace_regex /[0-9]+/period/
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select * from performance_schema.global_variables where variable_name='slave_checkpoint_period';
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--replace_regex /[0-9]+/period/
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select * from performance_schema.session_variables where variable_name='slave_checkpoint_period';
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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 slave_checkpoint_period=1;
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select @@global.slave_checkpoint_period;
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--error ER_GLOBAL_VARIABLE
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set session slave_checkpoint_period=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 slave_checkpoint_period=1.1;
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--error ER_WRONG_TYPE_FOR_VAR
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set global slave_checkpoint_period=1e1;
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--error ER_WRONG_TYPE_FOR_VAR
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set global slave_checkpoint_period="foo";
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#
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# min/max values
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#
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set global slave_checkpoint_period=1;
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select @@global.slave_checkpoint_period;
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set global slave_checkpoint_period=cast(-1 as unsigned int);
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select @@global.slave_checkpoint_period as "truncated to the maximum";
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SET @@global.slave_checkpoint_period = @start_global_value;
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SELECT @@global.slave_checkpoint_period;
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