[firebird-support] What is difference between Distinct and Distinct(FieldName)

[liviuslivius liviusliv...@poczta.onet.pl [firebird-support]]

Hi,
 
is there some difference in meaning between this two
 
SELECT DISTINCT R.RDB$FIELD_ID, R.RDB$RELATION_NAME FROM RDB$RELATIONS R
and this
SELECT DISTINCT(R.RDB$FIELD_ID), R.RDB$RELATION_NAME FROM RDB$RELATIONS R
 
regards,
Karol Bieniaszewski