fix case what VIEW have not tables (BUG#4614)

mysql-test/r/view.result:
  test of VIEW without tables
mysql-test/t/view.test:
  test of VIEW without tables
sql/sql_view.cc:
  fix case what VIEW have not tables

mysql-test/r/view.result

@@ -950,3 +950,9 @@ v1	CREATE VIEW test.v1 AS select `test`.`t1`.`a*b` AS `a*b` from `test`.`t1`
 drop view v1;
 drop table t1;
 set sql_mode=default;
+create table t1 (t_column int);
+create view v1 as select 'a';
+select * from v1, t1;
+a	t_column
+drop view v1;
+drop table t1;

mysql-test/t/view.test

@@ -861,3 +861,12 @@ show create view v1;
 drop view v1;
 drop table t1;
 set sql_mode=default;
+
+#
+# VIEW without tables
+#
+create table t1 (t_column int);
+create view v1 as select 'a';
+select * from v1, t1;
+drop view v1;
+drop table t1;

sql/sql_view.cc

@@ -677,6 +677,11 @@ mysql_make_view(File_parser *parser, TABLE_LIST *table)
 	if ((tbl_end->next_global= old_next))
           tbl_end->next_global->prev_global= &tbl_end->next_global;
       }
+      else
+      {
+        /* VIEW do not contain tables */
+        table->next_global= old_next;
+      }
     }
 
     table->derived= &lex->unit;