48 lines
1.6 KiB
Plaintext
48 lines
1.6 KiB
Plaintext
SET @start_global_value = @@global.sync_master_info;
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SELECT @start_global_value;
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@start_global_value
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10000
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select @@global.sync_master_info;
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@@global.sync_master_info
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10000
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select @@session.sync_master_info;
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ERROR HY000: Variable 'sync_master_info' is a GLOBAL variable
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show global variables like 'sync_master_info';
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Variable_name Value
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sync_master_info 10000
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show session variables like 'sync_master_info';
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Variable_name Value
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sync_master_info 10000
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select * from performance_schema.global_variables where variable_name='sync_master_info';
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VARIABLE_NAME VARIABLE_VALUE
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sync_master_info 10000
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select * from performance_schema.session_variables where variable_name='sync_master_info';
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VARIABLE_NAME VARIABLE_VALUE
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sync_master_info 10000
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set global sync_master_info=1;
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select @@global.sync_master_info;
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@@global.sync_master_info
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1
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set session sync_master_info=1;
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ERROR HY000: Variable 'sync_master_info' is a GLOBAL variable and should be set with SET GLOBAL
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set global sync_master_info=1.1;
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ERROR 42000: Incorrect argument type to variable 'sync_master_info'
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set global sync_master_info=1e1;
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ERROR 42000: Incorrect argument type to variable 'sync_master_info'
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set global sync_master_info="foo";
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ERROR 42000: Incorrect argument type to variable 'sync_master_info'
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set global sync_master_info=0;
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select @@global.sync_master_info;
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@@global.sync_master_info
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0
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set global sync_master_info=cast(-1 as unsigned int);
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Warnings:
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Warning 1292 Truncated incorrect sync_master_info value: '18446744073709551615'
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select @@global.sync_master_info;
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@@global.sync_master_info
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4294967295
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SET @@global.sync_master_info = @start_global_value;
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SELECT @@global.sync_master_info;
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@@global.sync_master_info
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10000
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