diff --git a/sql/opt_sum.cc b/sql/opt_sum.cc
index 82211120c57..97e271121d3 100644
--- a/sql/opt_sum.cc
+++ b/sql/opt_sum.cc
@@ -543,10 +543,6 @@ static bool matching_cond(bool max_fl, TABLE_REF *ref, KEY *keyinfo,
       break;                        // Found a part od the key for the field
   }
 
-#if 0
-  if (part->length != (((Item_field*) args[0])->field)->field_length)
-    return 0;
-#endif
   bool is_field_part= part == field_part;
   if (!(is_field_part || eq_type))
     return 0;