| From: | "Mikheev, Vadim" <vmikheev(at)SECTORBASE(dot)COM> |
|---|---|
| To: | "'Hannu Krosing'" <hannu(at)tm(dot)ee> |
| Cc: | Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at>, "'Don Baccus'" <dhogaza(at)pacifier(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, The Hermit Hacker <scrappy(at)hub(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | RE: Plans for solving the VACUUM problem |
| Date: | 2001-05-29 20:37:03 |
| Message-ID: | 3705826352029646A3E91C53F7189E32016660@sectorbase2.sectorbase.com |
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| Lists: | pgsql-hackers |
> > > OTOH it is possible to do without rolling back at all as
> > > MySQL folks have shown us ;)
> >
> > Not with SDB tables which support transactions.
>
> My point was that MySQL was used quite a long time without it
> and still quite many useful applications were produced.
And my point was that needless to talk about rollbacks in
non-transaction system and in transaction system one has to
implement rollback somehow.
> BTW, do you know what strategy is used by BSDDB/SDB for
> rollback/undo ?
AFAIR, they use O-smgr => UNDO is required.
Vadim
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