#
# 2011-08-02 - Added
#

--source include/not_embedded.inc
--source include/have_innodb.inc

SET @start_global_value = @@global.innodb_file_format_check;
SELECT @start_global_value;

#
# exists as global only
#
--echo  Valid values are 'ON' and 'OFF'
SELECT @@global.innodb_file_format_check in (0, 1);
SELECT @@global.innodb_file_format_check;

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@session.innodb_file_format_check;
SHOW global variables LIKE 'innodb_file_format_check';
SHOW session variables LIKE 'innodb_file_format_check';
SELECT * FROM information_schema.global_variables 
WHERE variable_name='innodb_file_format_check';
SELECT * FROM information_schema.session_variables 
WHERE variable_name='innodb_file_format_check';

#
# show that it's read only
#

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@global.innodb_file_format_check='Off';
--echo Expected error 'Read only variable'

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@global.innodb_file_format_check=1; 
--echo Expected error 'Read only variable'

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@global.innodb_file_format_check=0;
--echo Expected error 'Read only variable'

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@global.innodb_file_format_check='On';
--echo Expected error 'Read only variable'

--error ER_GLOBAL_VARIABLE
SET session innodb_large_prefix='OFF';
--error ER_GLOBAL_VARIABLE
SET @@session.innodb_stats_on_metadata='ON';

#
# Check if the value in GLOBAL Table matches value in variable 
#

SELECT IF(@@GLOBAL.innodb_file_format_check, "ON", "OFF") = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_file_format_check';
--echo 1 Expected

SELECT COUNT(@@GLOBAL.innodb_file_format_check);
--echo 1 Expected

SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_file_format_check';
--echo 1 Expected

#
# Check if accessing variable with and without GLOBAL point to same variable
#
SELECT @@innodb_file_format_check = @@GLOBAL.innodb_file_format_check;
--echo 1 Expected

#
# Check if innodb_doublewrite can be accessed with and without @@ sign 
#

SELECT COUNT(@@innodb_file_format_check);
--echo 1 Expected

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@local.innodb_file_format_check);
--echo Expected error 'Variable is a GLOBAL variable'

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@SESSION.innodb_file_format_check);
--echo Expected error 'Variable is a GLOBAL variable'

SELECT COUNT(@@GLOBAL.innodb_file_format_check);
--echo 1 Expected

--Error ER_BAD_FIELD_ERROR
SELECT innodb_file_format_check = @@SESSION.innodb_file_format_check;
--echo Expected error 'Readonly variable'
