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387a54fbbd
assertion .\filesort.cc, line 797 A query with the "ORDER BY @@some_system_variable" clause, where @@some_system_variable is NULL, causes assertion failure in the filesort procedures. The reason of the failure is in the value of Item_func_get_system_var::maybe_null: it was unconditionally set to false even if the value of a variable was NULL.
54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
'#---------------------BS_STVARS_046_01----------------------#'
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SELECT COUNT(@@GLOBAL.ssl_capath);
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COUNT(@@GLOBAL.ssl_capath)
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0
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0 Expected
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'#---------------------BS_STVARS_046_02----------------------#'
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SET @@GLOBAL.ssl_capath=1;
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ERROR HY000: Variable 'ssl_capath' is a read only variable
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Expected error 'Read only variable'
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SELECT COUNT(@@GLOBAL.ssl_capath);
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COUNT(@@GLOBAL.ssl_capath)
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0
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0 Expected
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'#---------------------BS_STVARS_046_03----------------------#'
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SELECT @@GLOBAL.ssl_capath = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='ssl_capath';
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@@GLOBAL.ssl_capath = VARIABLE_VALUE
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NULL
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1 Expected
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SELECT COUNT(@@GLOBAL.ssl_capath);
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COUNT(@@GLOBAL.ssl_capath)
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0
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0 Expected
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SELECT COUNT(VARIABLE_VALUE)
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='ssl_capath';
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COUNT(VARIABLE_VALUE)
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1
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1 Expected
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'#---------------------BS_STVARS_046_04----------------------#'
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SELECT @@ssl_capath = @@GLOBAL.ssl_capath;
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@@ssl_capath = @@GLOBAL.ssl_capath
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NULL
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1 Expected
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'#---------------------BS_STVARS_046_05----------------------#'
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SELECT COUNT(@@ssl_capath);
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COUNT(@@ssl_capath)
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0
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0 Expected
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SELECT COUNT(@@local.ssl_capath);
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ERROR HY000: Variable 'ssl_capath' is a GLOBAL variable
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Expected error 'Variable is a GLOBAL variable'
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SELECT COUNT(@@SESSION.ssl_capath);
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ERROR HY000: Variable 'ssl_capath' is a GLOBAL variable
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Expected error 'Variable is a GLOBAL variable'
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SELECT COUNT(@@GLOBAL.ssl_capath);
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COUNT(@@GLOBAL.ssl_capath)
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0
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0 Expected
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SELECT ssl_capath = @@SESSION.ssl_capath;
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ERROR 42S22: Unknown column 'ssl_capath' in 'field list'
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Expected error 'Readonly variable'
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