Re: pg_dump question
От | Bruce Momjian |
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Тема | Re: pg_dump question |
Дата | |
Msg-id | 200201190057.g0J0v5f10337@candle.pha.pa.us обсуждение исходный текст |
Ответ на | pg_dump question (Laurette Cisneros <laurette@nextbus.com>) |
Ответы |
Re: pg_dump question
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Список | pgsql-hackers |
Laurette Cisneros wrote: > > We use pg_dump nightly to dump data from all tables in our databases (only > table data, makes restore easier, trust me on that). > > My question is this: > > I have many tables that have millions of rows. > > Let's say I start the pg_dump... > > Then, an update in a transaction occurs that updates 3 different tables > over a period of time. > > Will some of the pg_dump table data be "out of sync"? > > How exactly does pg_dump (if at all) handle transactions/table changes? Pg_dump takes a snapshot of the database when it starts to the restore will be constistent with the start time of pg_dump. Good question. -- 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, Pennsylvania19026
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