grupos <grupos(at)carvalhaes(dot)net> writes:
> Hi Adam,
>
> I am sorry for the misunderstanding, when I compose the e-mail I
> forgot the ' ' on the 1 BUT the error is the same, I made:
> INSERT INTO test VALUES ('1')
>
> and I get the error:
> ERROR: invalid input syntax for integer: ""
>
> I am sure that there is some problem with LO.
Try inserting an explicit NULL:
INSERT INTO test VALUES ('1', NULL);
-Doug