ORDER clause printing fixed (BUG#5156)

mysql-test/r/subselect.result:
  ORDER clause printing fixed
mysql-test/r/view.result:
  order by refers on integer field
mysql-test/t/view.test:
  order by refers on integer field
sql/sql_lex.cc:
  ORDER clause printing fixed
sql/sql_parse.cc:
  fields for correct ORDER printing added
sql/sql_select.cc:
  fields for correct ORDER printing added
sql/table.h:
  fields for correct ORDER printing added

mysql-test/r/subselect.result

@@ -186,7 +186,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 4	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	
 NULL	UNION RESULT	<union1,3>	ALL	NULL	NULL	NULL	NULL	NULL	
 Warnings:
-Note	1003	(select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = (select `test`.`t3`.`a` AS `a` from `test`.`t3` order by `test`.`t3`.`a` desc limit 1))) union (select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t4` where (`test`.`t4`.`b` = (select (max(`test`.`t2`.`a`) * 4) AS `max(t2.a)*4` from `test`.`t2`)) order by `test`.`t4`.`a`)
+Note	1003	(select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`b` = (select `test`.`t3`.`a` AS `a` from `test`.`t3` order by 1 desc limit 1))) union (select `test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b` from `test`.`t4` where (`test`.`t4`.`b` = (select (max(`test`.`t2`.`a`) * 4) AS `max(t2.a)*4` from `test`.`t2`)) order by `test`.`t4`.`a`)
 select (select a from t3 where a<t2.a*4 order by 1 desc limit 1), a from t2;
 (select a from t3 where a<t2.a*4 order by 1 desc limit 1)	a
 3	1
@@ -202,7 +202,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 3	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
 2	SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	3	Using where; Using filesort
 Warnings:
-Note	1003	select (select `test`.`t3`.`a` AS `a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by `test`.`t3`.`a` desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
+Note	1003	select (select `test`.`t3`.`a` AS `a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,`tt`.`a` AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
 select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
 a
 2

mysql-test/r/view.result

@@ -1193,3 +1193,12 @@ Table	Create Table
 v2	CREATE VIEW `test`.`v2` AS select (`test`.`t2`.`col1` collate latin1_german1_ci) AS `col1 collate latin1_german1_ci` from `test`.`t2`
 drop view v2;
 drop table t2;
+create table t1 (a int);
+insert into t1 values (1), (2);
+create view v1 as select 5 from t1 order by 1;
+select * from v1;
+5
+5
+5
+drop view v1;
+drop table t1;

mysql-test/t/view.test

@@ -1135,3 +1135,13 @@ show create view v2;
 show create view v2;
 drop view v2;
 drop table t2;
+
+#
+# order by refers on integer field
+#
+create table t1 (a int);
+insert into t1 values (1), (2);
+create view v1 as select 5 from t1 order by 1;
+select * from v1;
+drop view v1;
+drop table t1;

sql/sql_lex.cc

@@ -1470,7 +1470,14 @@ void st_select_lex::print_order(String *str, ORDER *order)
 {
   for (; order; order= order->next)
   {
-    (*order->item)->print(str);
+    if (order->counter_used)
+    {
+      char buffer[20];
+      my_snprintf(buffer, 20, "%u", order->counter);
+      str->append(buffer);
+    }
+    else
+      (*order->item)->print(str);
     if (!order->asc)
       str->append(" desc", 5);
     if (order->next)

sql/sql_parse.cc

@@ -4935,6 +4935,7 @@ bool add_to_list(THD *thd, SQL_LIST &list,Item *item,bool asc)
   order->asc = asc;
   order->free_me=0;
   order->used=0;
+  order->counter_used= 0;
   list.link_in_list((byte*) order,(byte**) &order->next);
   DBUG_RETURN(0);
 }

sql/sql_select.cc

@@ -10066,8 +10066,10 @@ find_order_in_list(THD *thd, Item **ref_pointer_array,
 	       thd->where);
       return 1;
     }
-    order->item= ref_pointer_array + count-1;
+    order->item= ref_pointer_array + count - 1;
     order->in_field_list= 1;
+    order->counter= count;
+    order->counter_used= 1;
     return 0;
   }
   uint counter;

sql/table.h

@@ -29,9 +29,12 @@ typedef struct st_order {
   Item	 **item;			/* Point at item in select fields */
   Item	 *item_ptr;			/* Storage for initial item */
   Item   **item_copy;			/* For SPs; the original item ptr */
+  int    counter;                       /* position in SELECT list, correct
+                                           only if counter_used is true*/
   bool	 asc;				/* true if ascending */
   bool	 free_me;			/* true if item isn't shared  */
   bool	 in_field_list;			/* true if in select field list */
+  bool   counter_used;                  /* parapeter was counter of columns */
   Field  *field;			/* If tmp-table group */
   char	 *buff;				/* If tmp-table group */
   table_map used,depend_map;