Don't generate fake "ANY_subquery" aliases, either.

This is just like the previous commit, but for a different invented
alias name.

Author: Robert Haas <rhaas@postgresql.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CA+TgmoYSYmDA2GvanzPMci084n+mVucv0bJ0HPbs6uhmMN6HMg@mail.gmail.com

src/backend/optimizer/plan/subselect.c

@@ -1397,7 +1397,7 @@ convert_ANY_sublink_to_join(PlannerInfo *root, SubLink *sublink,
 	 */
 	nsitem = addRangeTableEntryForSubquery(pstate,
 										   subselect,
-										   makeAlias("ANY_subquery", NIL),
+										   NULL,
 										   use_lateral,
 										   false);
 	rte = nsitem->p_rte;

src/test/regress/expected/memoize.out

@@ -545,15 +545,15 @@ EXPLAIN (COSTS OFF)
 SELECT * FROM tab_anti t1 WHERE t1.a IN
  (SELECT a FROM tab_anti t2 WHERE t2.b IN
   (SELECT t1.b FROM tab_anti t3 WHERE t2.a > 1 OFFSET 0));
-                   QUERY PLAN                    
--------------------------------------------------
+                    QUERY PLAN                     
+---------------------------------------------------
  Nested Loop Semi Join
    ->  Seq Scan on tab_anti t1
    ->  Nested Loop Semi Join
          Join Filter: (t1.a = t2.a)
          ->  Seq Scan on tab_anti t2
-         ->  Subquery Scan on "ANY_subquery"
-               Filter: (t2.b = "ANY_subquery".b)
+         ->  Subquery Scan on unnamed_subquery
+               Filter: (t2.b = unnamed_subquery.b)
                ->  Result
                      One-Time Filter: (t2.a > 1)
                      ->  Seq Scan on tab_anti t3

src/test/regress/expected/subselect.out

@@ -1692,14 +1692,14 @@ select * from int4_tbl o where (f1, f1) in
 -------------------------------------------------------------------
  Nested Loop Semi Join
    Output: o.f1
-   Join Filter: (o.f1 = "ANY_subquery".f1)
+   Join Filter: (o.f1 = unnamed_subquery.f1)
    ->  Seq Scan on public.int4_tbl o
          Output: o.f1
    ->  Materialize
-         Output: "ANY_subquery".f1, "ANY_subquery".g
-         ->  Subquery Scan on "ANY_subquery"
-               Output: "ANY_subquery".f1, "ANY_subquery".g
-               Filter: ("ANY_subquery".f1 = "ANY_subquery".g)
+         Output: unnamed_subquery.f1, unnamed_subquery.g
+         ->  Subquery Scan on unnamed_subquery
+               Output: unnamed_subquery.f1, unnamed_subquery.g
+               Filter: (unnamed_subquery.f1 = unnamed_subquery.g)
                ->  Result
                      Output: i.f1, ((generate_series(1, 50)) / 10)
                      ->  ProjectSet
@@ -2867,8 +2867,8 @@ ON B.hundred in (SELECT min(c.hundred) FROM tenk2 C WHERE c.odd = b.odd);
                ->  Memoize
                      Cache Key: b.hundred, b.odd
                      Cache Mode: binary
-                     ->  Subquery Scan on "ANY_subquery"
-                           Filter: (b.hundred = "ANY_subquery".min)
+                     ->  Subquery Scan on unnamed_subquery
+                           Filter: (b.hundred = unnamed_subquery.min)
                            ->  Result
                                  InitPlan 1
                                    ->  Limit