help with corrupted database - Mailing list pgsql-hackers

Hello.
A memory fault in a trigger left my database
in a corrupted state:
- A temporary table listed in pg_class  was not accessible with a select
- I could not DROP it
- I deleted the record from pg_class
- I can't create temporary tables anymore  (restart/vacuum full don't help)  ERROR:  cache lookup failed for relation
1250714

Any hint?

--strk;