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Manual merge from mysql-5.1 for Bug#11764168 (56976: Severe denial

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of service in prepared statements).
This commit is contained in:
Dmitry Shulga
2011-03-15 18:57:36 +06:00
parent 14df359b39 6c2f5e306c
commit 10f5982ee5
12 changed files with 161 additions and 11 deletions
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14
mysql-test/suite/sys_vars/r/max_long_data_size_basic.result Normal file
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@@ -0,0 +1,14 @@
select @@global.max_long_data_size=20;
@@global.max_long_data_size=20
0
select @@session.max_long_data_size;
ERROR HY000: Variable 'max_long_data_size' is a GLOBAL variable
SELECT @@global.max_long_data_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='max_long_data_size';
@@global.max_long_data_size = VARIABLE_VALUE
1
set global max_long_data_size=1;
ERROR HY000: Variable 'max_long_data_size' is a read only variable
set session max_long_data_size=1;
ERROR HY000: Variable 'max_long_data_size' is a read only variable

17
mysql-test/suite/sys_vars/t/max_long_data_size_basic.test Normal file
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select @@global.max_long_data_size=20;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.max_long_data_size;
# Show that value of the variable matches the value in the GLOBAL I_S table
SELECT @@global.max_long_data_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='max_long_data_size';
#
# show that it's read-only
#
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set global max_long_data_size=1;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
set session max_long_data_size=1;