1SELECT @@GLOBAL.innodb_undo_tablespaces >= 0;
2@@GLOBAL.innodb_undo_tablespaces >= 0
31
4SET @@GLOBAL.innodb_undo_tablespaces=128;
5ERROR HY000: Variable 'innodb_undo_tablespaces' is a read only variable
6Expected error 'Read only variable'
7SELECT COUNT(@@GLOBAL.innodb_undo_tablespaces);
8COUNT(@@GLOBAL.innodb_undo_tablespaces)
91
101 Expected
11DIFFERENCE
120
130 Expected
14SELECT @@innodb_undo_tablespaces = @@GLOBAL.innodb_undo_tablespaces;
15@@innodb_undo_tablespaces = @@GLOBAL.innodb_undo_tablespaces
161
171 Expected
18SELECT COUNT(@@innodb_undo_tablespaces);
19COUNT(@@innodb_undo_tablespaces)
201
211 Expected
22SELECT COUNT(@@local.innodb_undo_tablespaces);
23ERROR HY000: Variable 'innodb_undo_tablespaces' is a GLOBAL variable
24Expected error 'Variable is a GLOBAL variable'
25SELECT COUNT(@@SESSION.innodb_undo_tablespaces);
26ERROR HY000: Variable 'innodb_undo_tablespaces' is a GLOBAL variable
27Expected error 'Variable is a GLOBAL variable'
28SELECT COUNT(@@GLOBAL.innodb_undo_tablespaces);
29COUNT(@@GLOBAL.innodb_undo_tablespaces)
301
311 Expected
32SELECT innodb_undo_tablespaces = @@SESSION.innodb_undo_tablespaces;
33ERROR 42S22: Unknown column 'innodb_undo_tablespaces' in 'field list'
34Expected error 'Readonly variable'
35