

# 2011-02-23 - Added
#

--source include/have_innodb.inc

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

#
# exists as global only
#
select @@global.innodb_flush_neighbors;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.innodb_flush_neighbors;
show global variables like 'innodb_flush_neighbors';
show session variables like 'innodb_flush_neighbors';
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';

#
# show that it's writable
#
set global innodb_flush_neighbors=0;
select @@global.innodb_flush_neighbors;
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
set @@global.innodb_flush_neighbors=TRUE;
select @@global.innodb_flush_neighbors;
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
set global innodb_flush_neighbors=0;
select @@global.innodb_flush_neighbors;
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
set @@global.innodb_flush_neighbors=2;
select @@global.innodb_flush_neighbors;
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
set @@global.innodb_flush_neighbors=DEFAULT;
select @@global.innodb_flush_neighbors;
select * from information_schema.global_variables where variable_name='innodb_flush_neighbors';
select * from information_schema.session_variables where variable_name='innodb_flush_neighbors';
--error ER_GLOBAL_VARIABLE
set session innodb_flush_neighbors=0;
--error ER_GLOBAL_VARIABLE
set @@session.innodb_flush_neighbors=1;

#
# incorrect types
#
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_flush_neighbors='OFF';
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_flush_neighbors='ON';
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_flush_neighbors=1.1;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_flush_neighbors=1e1;
set global innodb_flush_neighbors=3;
select @@global.innodb_flush_neighbors;
set global innodb_flush_neighbors=-3;
select @@global.innodb_flush_neighbors;
--error ER_WRONG_TYPE_FOR_VAR
set global innodb_flush_neighbors='AUTO';

#
# Cleanup
#

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