Simple cleanups

mysql-test/t/auto_increment.test:
  Fixed wrong comment
sql/opt_range.cc:
  Removed not used variable
sql/sql_select.cc:
  Removed indentation level (This will also make merges into 4.1 easier)

mysql-test/t/auto_increment.test

@@ -82,7 +82,7 @@ insert into t1 values (NULL);
 select * from t1;
 drop table t1;
 
-create table t1 (a int not null auto_increment primary key) /*!41002 type=heap */;
+create table t1 (a int not null auto_increment primary key) /*!40102 type=heap */;
 insert into t1 values (NULL);
 insert into t1 values (-1);
 select last_insert_id();

sql/opt_range.cc

@@ -1076,7 +1076,6 @@ get_mm_leaf(PARAM *param, Field *field, KEY_PART *key_part,
       all rows between 'X' and 'X           ...'
     */
     uint length= uint2korr(str+maybe_null);
-    char *end;
     str2= str+ key_part->part_length + maybe_null;
     /* remove end space */
     while (length > 0 && str[length+HA_KEY_BLOB_LENGTH+maybe_null-1] == ' ')

sql/sql_select.cc

@@ -1771,41 +1771,37 @@ update_ref_and_keys(THD *thd, DYNAMIC_ARRAY *keyuse,JOIN_TAB *join_tab,
 		    uint tables, COND *cond, table_map normal_tables)
 {
   uint	and_level,i,found_eq_constant;
+  KEY_FIELD *key_fields, *end, *field;
 
+  if (!(key_fields=(KEY_FIELD*)
+	thd->alloc(sizeof(key_fields[0])*(thd->cond_count+1)*2)))
+    return TRUE; /* purecov: inspected */
+  and_level=0; field=end=key_fields;
+  if (my_init_dynamic_array(keyuse,sizeof(KEYUSE),20,64))
+    return TRUE;
+  if (cond)
   {
-    KEY_FIELD *key_fields,*end;
-    KEY_FIELD *field;
-
-    if (!(key_fields=(KEY_FIELD*)
-	  thd->alloc(sizeof(key_fields[0])*(thd->cond_count+1)*2)))
-      return TRUE; /* purecov: inspected */
-    and_level=0; field=end=key_fields;
-    if (my_init_dynamic_array(keyuse,sizeof(KEYUSE),20,64))
-      return TRUE;
-    if (cond)
+    add_key_fields(join_tab,&end,&and_level,cond,normal_tables);
+    for (; field != end ; field++)
     {
-      add_key_fields(join_tab,&end,&and_level,cond,normal_tables);
-      for (; field != end ; field++)
-      {
-	add_key_part(keyuse,field);
-	/* Mark that we can optimize LEFT JOIN */
-	if (field->val->type() == Item::NULL_ITEM &&
-	    !field->field->real_maybe_null())
-	  field->field->table->reginfo.not_exists_optimize=1;
-      }
+      add_key_part(keyuse,field);
+      /* Mark that we can optimize LEFT JOIN */
+      if (field->val->type() == Item::NULL_ITEM &&
+	  !field->field->real_maybe_null())
+	field->field->table->reginfo.not_exists_optimize=1;
     }
-    for (i=0 ; i < tables ; i++)
+  }
+  for (i=0 ; i < tables ; i++)
+  {
+    if (join_tab[i].on_expr)
     {
-      if (join_tab[i].on_expr)
-      {
-	add_key_fields(join_tab,&end,&and_level,join_tab[i].on_expr,
-		       join_tab[i].table->map);
-      }
+      add_key_fields(join_tab,&end,&and_level,join_tab[i].on_expr,
+		     join_tab[i].table->map);
     }
-    /* fill keyuse with found key parts */
-    for (; field != end ; field++)
-      add_key_part(keyuse,field);
   }
+  /* fill keyuse with found key parts */
+  for (; field != end ; field++)
+    add_key_part(keyuse,field);
 
   if (thd->lex.select->ftfunc_list.elements)
   {