EXPLAIN WITH

I'm a bit unsatisfied with this output because it doesn't tell me the
plan it used to construct the CTE being scanned.

rhaas=# explain with wumpus as (select * from foo where id < 200)
select * from foo f, wumpus c, wumpus u where f.creator_id = c.id and
f.last_updater_id = u.id;                                QUERY PLAN
-----------------------------------------------------------------------------Hash Join  (cost=31.44..74.94 rows=1000
width=36) Hash Cond: (f.creator_id = c.id)  InitPlan    ->  Seq Scan on foo  (cost=0.00..18.50 rows=199 width=12)
  Filter: (id < 200)  ->  Hash Join  (cost=6.47..36.22 rows=1000 width=24)        Hash Cond: (f.last_updater_id = u.id)
      ->  Seq Scan on foo f  (cost=0.00..16.00 rows=1000 width=12)        ->  Hash  (cost=3.98..3.98 rows=199 width=12)
            ->  CTE Scan on wumpus u  (cost=0.00..3.98 rows=199 width=12)  ->  Hash  (cost=3.98..3.98 rows=199
width=12)       ->  CTE Scan on wumpus c  (cost=0.00..3.98 rows=199 width=12)
 
(12 rows)

I haven't looked at what would be required to fix this, but I think we
should fix it before releasing 8.4.

...Robert