"alexandre :: aldeia digital" <alepaes@aldeiadigital.com.br> writes:
> SELECT A.id, B.desc from A left join B ON B.id=A.id FOR UPDATE OF A,B
> If I have a null rellation in B, the error in postgres is:
> "SELECT FOR UPDATE cannot be applied to the nullable side of an OUTER JOIN"
Yup.
> DB2 simply ignore the FOR UPDATE ...
> I think that is the correct form...
That seems obviously wrong to me. What good is a FOR UPDATE if it fails
to lock down the rows that created your result?
regards, tom lane