"CN LIOU" <cnliou@graffiti.net> writes:
> SELECT * FROM test LIMIT 1
> returns, I guess, the OID of c2 instead of the binary data to which the OID points.
I don't think so...
regression=# create table test (c1 text,c2 bytea);
CREATE TABLE
regression=# insert into test values ('some text', 'some binary data \\000\\001');
INSERT 284058 1
regression=# select * from test; c1 | c2
-----------+---------------------------some text | some binary data \000\001
(1 row)
I see no OID here.
Perhaps you should show us an example of what you are doing, rather than
your interpretation of what's going wrong.
regards, tom lane