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SELECT @@GLOBAL.innodb_undo_tablespaces >= 0;
@@GLOBAL.innodb_undo_tablespaces >= 0
1
SET @@GLOBAL.innodb_undo_tablespaces=128;
ERROR HY000: Variable 'innodb_undo_tablespaces' is a read only variable
Expected error 'Read only variable'
SELECT COUNT(@@GLOBAL.innodb_undo_tablespaces);
COUNT(@@GLOBAL.innodb_undo_tablespaces)
1
1 Expected
DIFFERENCE
0
0 Expected
SELECT @@innodb_undo_tablespaces = @@GLOBAL.innodb_undo_tablespaces;
@@innodb_undo_tablespaces = @@GLOBAL.innodb_undo_tablespaces
1
1 Expected
SELECT COUNT(@@innodb_undo_tablespaces);
COUNT(@@innodb_undo_tablespaces)
1
1 Expected
SELECT COUNT(@@local.innodb_undo_tablespaces);
ERROR HY000: Variable 'innodb_undo_tablespaces' is a GLOBAL variable
Expected error 'Variable is a GLOBAL variable'
SELECT COUNT(@@SESSION.innodb_undo_tablespaces);
ERROR HY000: Variable 'innodb_undo_tablespaces' is a GLOBAL variable
Expected error 'Variable is a GLOBAL variable'
SELECT COUNT(@@GLOBAL.innodb_undo_tablespaces);
COUNT(@@GLOBAL.innodb_undo_tablespaces)
1
1 Expected
SELECT innodb_undo_tablespaces = @@SESSION.innodb_undo_tablespaces;
ERROR 42S22: Unknown column 'innodb_undo_tablespaces' in 'field list'
Expected error 'Readonly variable'
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