On 4/29/2010 1:51 PM, David Wall wrote:
>
>> Put it another way: bytea values are not stored in the pg_largeobject
>> catalog.
>
> I missed the part that BYTEA was being used since it's generally not a
> good way for starting large binary data because you are right that
> BYTEA requires escaping across the wire (client to backend) both
> directions, which for true binary data (like compressed/encrypted
> data, images or other non-text files) makes for a lot of expansion in
> size and related memory.
>
> BYTEA and TEXT both can store up to 1GB of data (max field length),
> which means even less "file size" supported if you use TEXT with
> base64 coding. LO supports 2GB of data. In JDBC, typically BYTEA is
> used with byte[] or binary stream while LOs with BLOB. I think LOs
> allow for streaming with the backend, too, but not sure about that,
> whereas I'm pretty sure BYTEA/TEXT move all the data together you it
> will be in memory all or nothing.
>
> Of course, to support larger file storage than 1GB or 2GB, you'll have
> to create your own "toast" like capability to split them into multiple
> rows.
>
> David
>
Outside of videos/media streams what other kind of data is going to be
1gig in size. Thats allot of data still even still today.
We all talk about 1 gig and 2 gig limits on this, but really who has
bumped into that on regular bases??? Every time i hear about that not
being big enough the person is trying to shoe horn in media files into
the database, which is insane
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