Are the following two queries equivalent in ASE 12.5.x? I saw on a thread somewhere that some said they were equivalent, but in my testing they are not.

QUERY 1
------------------------------------
SELECT
Legal_Owner_vw.Legal_Owner_ID,
Legal_Owner_Role_vw.Role_Description
FROM
Legal_Owner_vw
LEFT OUTER JOIN Legal_Owner_Role_vw
ON (Legal_Owner_vw.Legal_Owner_Key = Legal_Owner_Role_vw.Legal_Owner_Key
AND Legal_Owner_Role_vw.Role_Description = 'Cash Manager')
ORDER BY Legal_Owner_ANSI_vw.Legal_Owner_ID

QUERY 2
----------------------------------------------------------
SELECT
Legal_Owner_vw.Legal_Owner_ID,
Legal_Owner_Role_vw.Role_Description
FROM
Legal_Owner_vw
LEFT OUTER JOIN Legal_Owner_Role_vw
ON (Legal_Owner_vw.Legal_Owner_Key = Legal_Owner_Role_vw.Legal_Owner_Key)
WHERE
(Legal_Owner_Role_vw.Role_Description = 'Cash Manager' OR Legal_Owner_Role_vw.Role_Description IS NULL)
ORDER BY Legal_Owner_ANSI_vw.Legal_Owner_ID

Thanks in advance,
Todd