MDEV-19353 : Alter Sequence do not replicate to another nodes with in Galera Cluster

Galera replication of new DDL-case was missing

mysql-test/suite/galera/r/galera_sequences.result

+connection node_2;
+connection node_1;
+connection node_1;
+CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 1000000 increment by 0 cache 1000 nocycle ENGINE=InnoDB;
+SHOW CREATE SEQUENCE seq;
+Table	Create Table
+seq	CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 1000000 increment by 0 cache 1000 nocycle ENGINE=InnoDB
+connection node_2;
+SHOW CREATE SEQUENCE seq;
+Table	Create Table
+seq	CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 1000000 increment by 0 cache 1000 nocycle ENGINE=InnoDB
+connection node_1;
+ALTER SEQUENCE seq MAXVALUE = 10000;
+SHOW CREATE SEQUENCE seq;
+Table	Create Table
+seq	CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 10000 increment by 0 cache 1000 nocycle ENGINE=InnoDB
+connection node_2;
+SHOW CREATE SEQUENCE seq;
+Table	Create Table
+seq	CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 10000 increment by 0 cache 1000 nocycle ENGINE=InnoDB
+connection node_1;
+DROP SEQUENCE seq;
+SHOW CREATE SEQUENCE seq;
+ERROR 42S02: Table 'test.seq' doesn't exist
+connection node_2;
+SHOW CREATE SEQUENCE seq;
+ERROR 42S02: Table 'test.seq' doesn't exist

mysql-test/suite/galera/t/galera_sequences.test

+--source include/galera_cluster.inc
+
+--connection node_1
+CREATE SEQUENCE `seq` start with 1 minvalue 1 maxvalue 1000000 increment by 0 cache 1000 nocycle ENGINE=InnoDB;
+SHOW CREATE SEQUENCE seq;
+
+--connection node_2
+SHOW CREATE SEQUENCE seq;
+
+--connection node_1
+ALTER SEQUENCE seq MAXVALUE = 10000;
+SHOW CREATE SEQUENCE seq;
+
+--connection node_2
+SHOW CREATE SEQUENCE seq;
+
+--connection node_1
+DROP SEQUENCE seq;
+--error ER_NO_SUCH_TABLE
+SHOW CREATE SEQUENCE seq;
+
+--connection node_2
+--error ER_NO_SUCH_TABLE
+SHOW CREATE SEQUENCE seq;

sql/sql_sequence.cc

@@ -908,6 +908,13 @@ bool Sql_cmd_alter_sequence::execute(THD *thd)
   if (check_grant(thd, ALTER_ACL, first_table, FALSE, 1, FALSE))
     DBUG_RETURN(TRUE);                  /* purecov: inspected */
 
+#ifdef WITH_WSREP
+  if (WSREP_ON && WSREP(thd) &&
+      wsrep_to_isolation_begin(thd, first_table->db.str,
+	                       first_table->table_name.str,
+		               first_table))
+    DBUG_RETURN(TRUE);
+#endif /* WITH_WSREP */
   if (if_exists())
     thd->push_internal_handler(&no_such_table_handler);
   error= open_and_lock_tables(thd, first_table, FALSE, 0);