Re: unique row identifier data type exhausted . . .
От | Bruce Momjian |
---|---|
Тема | Re: unique row identifier data type exhausted . . . |
Дата | |
Msg-id | 200004260101.VAA00559@candle.pha.pa.us обсуждение исходный текст |
Ответ на | RE: unique row identifier data type exhausted . . . ("Andrew Snow" <als@fl.net.au>) |
Список | pgsql-general |
> > > > Is this necessarily a good solution? If you use 64-bit OIDs, some joker > > will just hook up a several-terra-byte disk array to his machine, try to > > store the location of every molecule in the universe and break it. > > If you have to have OIDs at all, its a lot better than a 32 bit number. I > think it would be easier to switch to 64 bit OIDs than ditch them > completely. > The "serial" type should definitely be 64 bit. To make matters worse I > believe its really only a 31 bit number as the plus/minus symbol is > discarded. But I think moving to 64 bit will take place soon enough, when > it needs to, and it should shut everyone up. If you look at that TODO list, oid's flowing over 32-bits is not something we are losing sleep over. In fact, the first fix would be to make sure oid's are truly treated as unsigned int's, thereby doubling their range. I have done some of those myself, but I am sure there are more areas that need fixing. Illustra's solution was to use two int32's, making the upper 32-bit value represent the site, so oid's remain unique as they move between sites. If we picked a random 32-bit oid on initdb startup, that would pretty much make them unique all the time. > > > "Christ died for sin, the righteous for the unrighteous, to bring > > you to God." > > - 1 Peter 3:18 > > Is it just me, or are there a lot of Christian PostgreSQL users? ;-) (I'm > not knocking it, I'm one too..) Good question. :-) -- Bruce Momjian | http://www.op.net/~candle 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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