The following query would yield an error:
VALIDTIME AS OF DATE '2009-05-06' SELECT * FROM v1 MINUS VALIDTIME AS OF DATE '2009-05-05' SELECT * FROM v1 ORDER BY 1;
The following query would run properly to yield the desired results:
SELECT * FROM v1 VALIDTIME AS OF DATE '2009-05-06' MINUS SELECT * FROM v1 VALIDTIME AS OF DATE '2009-05-05' ORDER BY 1;