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35 lines
1.6 KiB
Text
35 lines
1.6 KiB
Text
SET @start_global_value = @@global.innodb_tmpdir;
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SELECT @start_global_value;
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@start_global_value
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NULL
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select @@session.innodb_tmpdir;
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@@session.innodb_tmpdir
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NULL
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show global variables like 'innodb_tmpdir';
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Variable_name Value
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innodb_tmpdir
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show session variables like 'innodb_tmpdir';
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Variable_name Value
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innodb_tmpdir
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select * from information_schema.global_variables where variable_name='innodb_tmpdir';
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VARIABLE_NAME VARIABLE_VALUE
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INNODB_TMPDIR
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select * from information_schema.session_variables where variable_name='innodb_tmpdir';
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VARIABLE_NAME VARIABLE_VALUE
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INNODB_TMPDIR
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set global innodb_tmpdir=@@global.tmpdir;
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set session innodb_tmpdir=@@global.tmpdir;
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set global innodb_tmpdir=1.1;
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ERROR 42000: Incorrect argument type to variable 'innodb_tmpdir'
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set global innodb_tmpdir=1e1;
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ERROR 42000: Incorrect argument type to variable 'innodb_tmpdir'
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set global innodb_tmpdir=repeat('a',1000);
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ERROR 42000: Variable 'innodb_tmpdir' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...'
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show warnings;
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Level Code Message
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Warning 1210 Path length should not exceed 512 bytes
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Error 1231 Variable 'innodb_tmpdir' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...'
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SET @@global.innodb_tmpdir = @start_global_value;
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SELECT @@global.innodb_tmpdir;
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@@global.innodb_tmpdir
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NULL
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