Re: After ~Crash Sequence not correct
От | Bruce Momjian |
---|---|
Тема | Re: After ~Crash Sequence not correct |
Дата | |
Msg-id | 200201030557.g035vDA14407@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: After ~Crash Sequence not correct ("Mikheev, Vadim" <vmikheev@SECTORBASE.COM>) |
Список | pgsql-bugs |
Mikheev, Vadim wrote: > > I have verified that killing the postmaster after a few nextval's > > leaves things in a bad state after restart. > > > > I think I see the problem: in nextval(), the sequence data written to > > the WAL log is different from that written to the data page. Isn't > > that bogus? > > It was made to avoid WAL-loging on each nextval call, ie it should work > like OID pre-fetching: value stored in WAL must always "exceed" values > returned by nextval so on the after-crash-restart sequence should be > advanced to value which was never returned by nextval (for non-cycled > sequences). Maybe I made some mistakes in implementation? Was this ever fixed? -- 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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