Re: Large objects in one table patch
От | Bruce Momjian |
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Тема | Re: Large objects in one table patch |
Дата | |
Msg-id | 200010110051.UAA18466@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Large objects in one table patch (Denis Perchine <dyp@perchine.com>) |
Ответы |
Re: Large objects in one table patch
|
Список | pgsql-patches |
Now that we have TOAST, I wonder if we should just build large objects on top of that, rather than have all large objects in one file. > 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 > > ---------------------------------- > E-Mail: dyp@perchine.com > HomePage: http://www.perchine.com/dyp/ > FidoNet: 2:5000/120.5 > ---------------------------------- [ Attachment, skipping... ] -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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