#
# Check the handling of @@wsrep_dirty_reads
#

--source include/galera_cluster.inc
--source include/have_perfschema.inc

call mtr.add_suppression("WSREP has not yet prepared node for application use");

# Save original auto_increment_offset values.
--let $node_1=node_1
--let $node_2=node_2
--source include/auto_increment_offset_save.inc

--connection node_2
--let $wsrep_cluster_address_saved = `SELECT @@global.wsrep_cluster_address`

CREATE TABLE t1(i INT) ENGINE=INNODB;
INSERT INTO t1 VALUES(1);
SELECT * FROM t1;

SET @@global.wsrep_cluster_address = '';
SET @@session.wsrep_dirty_reads=OFF;

# Set wsrep_sync_wait to avoid ER_LOCK_WAIT_TIMEOUT.
SET SESSION wsrep_sync_wait=0;

# Must return 'OFF'
SHOW STATUS LIKE 'wsrep_ready';

# Must return 'Disconnected'
SHOW STATUS LIKE 'wsrep_cluster_status';

--error ER_UNKNOWN_COM_ERROR,1047
SELECT * FROM t1;

--error ER_UNKNOWN_COM_ERROR,1047
SELECT 1 FROM t1;

SET @@session.wsrep_dirty_reads=ON;

SELECT * FROM t1;
SELECT 1 FROM t1;

SELECT i, variable_name, variable_value FROM t1, information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads" AND i = 1;

SET @@session.wsrep_dirty_reads=OFF;

--error ER_UNKNOWN_COM_ERROR,1047
SELECT i, variable_name, variable_value FROM t1, information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads" AND i = 1;


SELECT 1;

USE information_schema;

SELECT * FROM information_schema.session_variables WHERE variable_name LIKE "wsrep_dirty_reads";

SELECT COUNT(*) >= 10 FROM performance_schema.events_statements_history;

--disable_query_log
--eval SET @@global.wsrep_cluster_address = '$wsrep_cluster_address_saved'
--enable_query_log
--source include/wait_until_connected_again.inc
--source include/galera_wait_ready.inc

--connection node_1
USE test;
SELECT * FROM t1;
# Cleanup
DROP TABLE t1;

# Restore original auto_increment_offset values.
--source include/auto_increment_offset_restore.inc

--source include/galera_end.inc