MDEV-16708: Unsupported commands for prepared statements

Fixed the test main.view

mysql-test/main/view.test

@@ -3081,7 +3081,9 @@ create view v1 as select * from t1 order by f2;
 select * from v1;
 explain extended select * from v1;
 select * from v1 order by f1;
+--enable_prepare_warnings
 explain extended select * from v1 order by f1;
+--disable_prepare_warnings
 drop view v1;
 drop table t1;
 
@@ -4421,7 +4423,9 @@ CREATE ALGORITHM=TEMPTABLE VIEW v1 AS SELECT f1 FROM t1;
 CREATE ALGORITHM=MERGE VIEW v2 AS SELECT f1 FROM v1 ORDER BY f1;
 
 SELECT * FROM v2 AS a1, v2 AS a2;
+--enable_prepare_warnings
 EXPLAIN EXTENDED SELECT * FROM v2 AS a1, v2 AS a2;
+--disable_prepare_warnings
 
 DROP VIEW v1, v2;
 DROP TABLE t1;

sql/item.cc

@@ -5531,8 +5531,11 @@ Item_field::fix_outer_field(THD *thd, Field **from_field, Item **reference)
   */
   Name_resolution_context *last_checked_context= context;
   Item **ref= (Item **) not_found_item;
+  SELECT_LEX *current_sel= thd->lex->current_select;
   Name_resolution_context *outer_context= 0;
   SELECT_LEX *select= 0;
+
+  if (current_sel->master_unit()->outer_select())
     outer_context= context->outer_context;
 
   /*