Re: Load Image File From PostgreSQL DB

Hello, Albe

In the article you provided it is said that "The return value is the OID
that was assigned to the new large object..." (function Oid
lo_creat(PGconn *conn, int mode);). That means that not the large object
is stored in OID field - its just the reference to it.
Any way I find it much easier to get a relatively small blob in a result
set and not directly using lo_read function, because in delphi zeos
components does work with libpq, so theres no need to bypass them?

Julius Tuskenis

Albe Laurenz rašė:
> dbalinglung wrote:
>
>>> I seriously doubt you could store an image in oid typed column, because
>>> "The oid type is currently implemented as an unsigned four-byte
>>> integer." (from postgresql 8.2 manual). I too use Zeos with no problems
>>> using bytea type.
>>>
>> Ok, I'll try your sugestion, many thanks bro.
>>
>
> Large Objects (http://www.postgresql.org/docs/current/static/largeobjects.html)
> use OID columns, and they work fine for storing binary data like images.
>
> But bytea will work just as fine.
>
> Yours,
> Laurenz Albe
>
>