Re: BLOB or BYTEA field

BLOBs are actually created using lo_create - you are then returned an OID
that can essentially be used as a file descriptor. However, in my
programs, I've opted for bytea for the following reasons:

* You can't query for BLOBs and know if there is a dangling reference

* BLOBs use OID fields. Running out of OIDs is a problem in PostgreSQL
because they are only four bytes wide. This makes BLOBs useless for large
databases.

* bytea fields are easier to manipulate

I think I had some other reaons, but I can't think of them right now.

I also just liked storing the binary object itself as an attribute rather
than a somewhat dangling entity.

Jon

On 18 Feb 2003, CN wrote:

> Hi! Daniel,
>
> >
> > you should use oid Fields for BLOBS. That works well.
> >
>
> I have the same question. Could you make it more specific? oid is an
> unsigned 4 bytes integer. How do you save binary data from Delphi in
> bytea column "using oid fields"?
>
> Thanks you!
>
> CN
>
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