Fixed typo (exlude -> exclude).

sql/sql_lex.h

@@ -585,7 +585,7 @@ public:
   void set_thd(THD *thd_arg) { thd= thd_arg; }
   inline bool is_union (); 
 
-  void set_unique_exlude();
+  void set_unique_exclude();
 
   friend void lex_start(THD *thd);
   friend int subselect_union_engine::exec();

sql/sql_union.cc

@@ -954,7 +954,7 @@ void st_select_lex::cleanup_all_joins(bool full)
   table check.
 */
 
-void st_select_lex_unit::set_unique_exlude()
+void st_select_lex_unit::set_unique_exclude()
 {
   for (SELECT_LEX *sl= first_select(); sl; sl= sl->next_select())
   {
@@ -963,7 +963,7 @@ void st_select_lex_unit::set_unique_exlude()
          unit;
          unit= unit->next_unit())
     {
-      unit->set_unique_exlude();
+      unit->set_unique_exclude();
     }
   }
 }

sql/table.cc

@@ -5864,7 +5864,7 @@ bool TABLE_LIST::init_derived(THD *thd, bool init_view)
   */
   if (is_materialized_derived())
   {
-    unit->master_unit()->set_unique_exlude();
+    unit->master_unit()->set_unique_exclude();
   }
   /*
     Create field translation for mergeable derived tables/views.