type creates broken view, which can't be deleted

It looks like there's a bug that allows you to create views with columns of type unknown, and then prevents you from
droppingthe view/table. 

alpha_2=> \i brokenview
CREATE VIEW article_contrib_info AS
     SELECT ac.article_id,
            p,firstname,             -- TYPO HERE, USED COMMA INSTEAD OF PERIOD
            p.lastname
       FROM person p, article_contributor ac
      WHERE ac.person_id = p.person_id;
NOTICE:  create: attribute named "p" has an unknown type
NOTICE:  unknown node tag 704 in OffsetVarNodes()
NOTICE:  Node is: { IDENT "p" }
NOTICE:  copyObject: don't know how to copy 704
CREATE
alpha_2=> \d article_contrib_info

Table    = article_contrib_info
+----------------------------------+----------------------------------+-------+
|              Field               |              Type                | Length|
+----------------------------------+----------------------------------+-------+
| article_id                       | int4                             |     4 |
| p                                | unknown                          |   var |
| firstname                        | varchar()                        |     0 |
| lastname                         | varchar()                        |     0 |
+----------------------------------+----------------------------------+-------+

alpha_2=> drop view article_contrib_info;
ERROR:  badly formatted planstring "IDENT "p" "...

alpha_2=> drop table article_contrib_info;
ERROR:  badly formatted planstring "IDENT "p" "...

alpha_2=>

Has anyone else heard of this behavior?  Is it a documented bug?  Or am I missing something obvious about how to
resolvethis kind of problem? 

Charlie