right join print fixed

mysql-test/r/join_nested.result

@@ -845,6 +845,20 @@ a	b	a	b	a	b	a	b
 1	3	5	3	2	2	NULL	NULL
 2	2	5	3	1	2	NULL	NULL
 2	2	5	3	2	2	NULL	NULL
+EXPLAIN EXTENDED
+SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
+FROM t1, t3, t4
+RIGHT JOIN
+t2
+ON t3.a=1 AND t2.b=t4.b
+WHERE t1.a <= 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	2	
+Warnings:
+Note	1003	select test.t1.a AS `a`,test.t1.b AS `b`,test.t2.a AS `a`,test.t2.b AS `b`,test.t3.a AS `a`,test.t3.b AS `b`,test.t4.a AS `a`,test.t4.b AS `b` from test.t1 join test.t3 join test.t2 left join test.t4 on(((test.t3.a = 1) and (test.t2.b = test.t4.b))) where (test.t1.a <= 2)
 CREATE INDEX idx_b ON t2(b);
 EXPLAIN EXTENDED
 SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b

mysql-test/t/join_nested.test

@@ -458,6 +458,14 @@ SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
        ON t3.a=1 AND t2.b=t4.b
     WHERE t1.a <= 2;
 
+EXPLAIN EXTENDED
+SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b
+  FROM t1, t3, t4
+       RIGHT JOIN
+       t2
+       ON t3.a=1 AND t2.b=t4.b
+    WHERE t1.a <= 2;
+
 CREATE INDEX idx_b ON t2(b);
 
 EXPLAIN EXTENDED

sql/sql_select.cc

@@ -11201,17 +11201,14 @@ static void print_join(THD *thd, String *str, List<TABLE_LIST> *tables)
     *t= ti++;
 
   DBUG_ASSERT(tables->elements >= 1);
-  TABLE_LIST *prev= *table;
-  prev->print(thd, str);
+  (*table)->print(thd, str);
 
   TABLE_LIST **end= table + tables->elements;
   for(TABLE_LIST **tbl= table + 1; tbl < end; tbl++)
   {
     TABLE_LIST *curr= *tbl;
-    if (prev->outer_join & JOIN_TYPE_RIGHT)
-      str->append(" right join ", 12);
-    else if (curr->outer_join & JOIN_TYPE_LEFT)
-      str->append(" left join ", 11);
+    if (curr->outer_join)
+      str->append(" left join ", 11); // MySQL converg right to left joins
     else if (curr->straight)
       str->append(" straight_join ", 15);
     else
@@ -11223,7 +11220,6 @@ static void print_join(THD *thd, String *str, List<TABLE_LIST> *tables)
       curr->on_expr->print(str);
       str->append(')');
     }
-    prev= curr;
   }
 }