Re: Select for update

Havasvölgyi Ottó wrote:
> Hi,
>
> Is it normal that when I select for update a record, but I don't select
> all the fields, that the contents of fields not selected will be deleted:
>
> create table pidtest(pid integer, szoveg text) without oids;
>
> select pid from pistest where pid>5 for update;
>
> After committing (autocommit), the contents of the szoveg field for the
> locked rows will be erased.

Committing what? You're not updating anything here. The "SELECT...FOR
UPDATE" just locks the rows so you can update them, it doesn't perform
the update.

--
   Richard Huxton
   Archonet Ltd