Re: OIDs (Or: another RTFM question?)
От | Bruce Momjian |
---|---|
Тема | Re: OIDs (Or: another RTFM question?) |
Дата | |
Msg-id | 200207170318.g6H3IHH18786@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: OIDs (Or: another RTFM question?) (Joel Rees <joel@alpsgiken.gr.jp>) |
Список | pgsql-general |
Joel Rees wrote: > Tom Lane explained: > > > Basically what WITHOUT OIDS does for you is to reduce consumption of > > OIDs, thereby postponing wraparound of the 32-bit OID counter. While > > the system itself isn't fazed by such a wraparound, user programs that > > look at OIDs might be. > > How much of a pain would it be to make that a 64-bit counter? Would that > create conflicts with the SQL standard? > > (No, I don't contribute code, so if that's a really stupid idea, just tell > me so.) Not hard, but another 4 bytes per row and some small performance penalty. Also, not all system support 64-bit ints. -- 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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