--source include/galera_cluster.inc
--source include/have_innodb.inc

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

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

SELECT @@GLOBAL.wsrep_cluster_address = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='wsrep_cluster_address';
--echo 1 Expected

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

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

SELECT @@wsrep_cluster_address = @@GLOBAL.wsrep_cluster_address;
--echo 1 Expected

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

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

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

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

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