ERROR: failed to build any 3-way joins

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Hello,

A user reported us the following bug under phpPgAdmin with 9.0beta1, but it seems it comes from backend.

Here is how to reproduce the bug:

================>
postgres=# SELECT version();
                                           version
- ----------------------------------------------------------------------------------------------
 PostgreSQL 9.0beta1 on i686-pc-linux-gnu, compiled by GCC gcc (Debian 4.4.3-2) 4.4.3, 32-bit
(1 row)

postgres=# SELECT rolname FROM pg_catalog.pg_roles AS r, pg_auth_members AS m
WHERE r.oid=m.roleid
AND member IN (
SELECT oid FROM pg_catalog.pg_roles
WHERE rolname='postgres')
ORDER BY rolname;
ERROR:  failed to build any 3-way joins
<================

- --
Jehan-Guillaume (ioguix) de Rorthais
DBA
http://www.dalibo.com
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