Large objects in one table patch

Hello all,

As promised.
Here is the patch for large objects in one table.
There's new system table pg_largeobject.
create table pg_largeobject (
loid Oid,
pageno int4,
data bytea
);

It has 2 indices: on (loid) and on (loid,pageno). (Is it neccessary to have
both? Can I search on the second one for loid only?)

BLOB is divided by virtual pages, which is maximum tuple size - some internal data.
Access to the data is based on pageno, which is similar block number on FS.

I am not sure that it is optimized and have no memory/resource leaks. Could
please someone better familiar with postgres review the patch.

It perfectly works with my database.

Patch is against the latest CVS.

--
Sincerely Yours,
Denis Perchine

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