mariadb/mysql-test/suite/sys_vars/r/ssl_cipher_basic.result
Gleb Shchepa 387a54fbbd Bug #42778: delete order by null global variable causes
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.
2009-05-22 01:22:46 +05:00

53 lines
1.6 KiB
Text

'#---------------------BS_STVARS_048_01----------------------#'
SELECT COUNT(@@GLOBAL.ssl_cipher);
COUNT(@@GLOBAL.ssl_cipher)
0
0 Expected
'#---------------------BS_STVARS_048_02----------------------#'
SET @@GLOBAL.ssl_cipher=1;
ERROR HY000: Variable 'ssl_cipher' is a read only variable
Expected error 'Read only variable'
SELECT COUNT(@@GLOBAL.ssl_cipher);
COUNT(@@GLOBAL.ssl_cipher)
0
0 Expected
'#---------------------BS_STVARS_048_03----------------------#'
SELECT @@GLOBAL.ssl_cipher = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='ssl_cipher';
@@GLOBAL.ssl_cipher = VARIABLE_VALUE
NULL
1 Expected
SELECT COUNT(@@GLOBAL.ssl_cipher);
COUNT(@@GLOBAL.ssl_cipher)
0
0 Expected
SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='ssl_cipher';
COUNT(VARIABLE_VALUE)
1
1 Expected
'#---------------------BS_STVARS_048_04----------------------#'
SELECT @@ssl_cipher = @@GLOBAL.ssl_cipher;
@@ssl_cipher = @@GLOBAL.ssl_cipher
NULL
1 Expected
'#---------------------BS_STVARS_048_05----------------------#'
SELECT COUNT(@@ssl_cipher);
COUNT(@@ssl_cipher)
0
0 Expected
SELECT COUNT(@@local.ssl_cipher);
ERROR HY000: Variable 'ssl_cipher' is a GLOBAL variable
Expected error 'Variable is a GLOBAL variable'
SELECT COUNT(@@SESSION.ssl_cipher);
ERROR HY000: Variable 'ssl_cipher' is a GLOBAL variable
Expected error 'Variable is a GLOBAL variable'
SELECT COUNT(@@GLOBAL.ssl_cipher);
COUNT(@@GLOBAL.ssl_cipher)
0
0 Expected
SELECT ssl_cipher = @@SESSION.ssl_cipher;
ERROR 42S22: Unknown column 'ssl_cipher' in 'field list'
Expected error 'Readonly variable'