Seems temporary tables can not be vacuumed.  It is because vacuum.c does
a sequential scan of the pg_class table, rather than using the cache. 
Should this be fixed?
	
	test=> create temporary table test (x integer);
	CREATE
	test=> vacuum test;
	NOTICE:  Vacuum: table not found
	VACUUM

-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  pgman@candle.pha.pa.us               |  (610) 853-3000
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Thu, 6 Apr 2000 13:10:12 -0400 (EDT)
Bruce Momjian <pgman@candle.pha.pa.us>
Vacuuming temporary tables