ODAC get fields error in desgin time.

[xalion]

In desgin time.
open the oraquery editor.
in sql tab , write 'select * from table' and go to sql generator tab.
click the "get fields" button.
only key field appear in key fields list.
nothing in updates fields. so it can't generate sql.
ODAC version is 6.5.0.34 and oracle server is 10.2.3
delphi 2007 .