Re: how critical is WAL
От | Rini Dutta |
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Тема | Re: how critical is WAL |
Дата | |
Msg-id | 20010222204850.25403.qmail@web2902.mail.yahoo.com обсуждение исходный текст |
Ответ на | Re: how critical is WAL (Bruce Momjian <pgman@candle.pha.pa.us>) |
Ответы |
Re: how critical is WAL
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Список | pgsql-general |
--- Bruce Momjian <pgman@candle.pha.pa.us> wrote: > > Hi, > > > > I happenned to come across the following in the > > documentation on WAL implementation in v7.1 - > > > > > ***************************************************** > > > Before WAL, any crash during writing could result > in: > > > > 1.index tuples pointing to non-existent table > rows > > > > 2.index tuples lost in split operations > > > > 3.totally corrupted table or index page > content, > > because of partially written data pages > > > ***************************************************** > > Indexes could get corrupt, requiring rebuilding. > That problem is gone > with WAL. Transaction commits where always safe. > Thanks. I was specifically asking about Result '3' above mentions 'totally corrupted table page content because of partially written data pages' . Is this also repairable ? __________________________________________________ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices! http://auctions.yahoo.com/
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