From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | "John Smith" <sodgodofall(at)gmail(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Backup/Restore of single table in multi TB database |
Date: | 2008-05-07 20:11:25 |
Message-ID: | 20080507131125.1dadb799@jd-laptop |
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Lists: | pgsql-general pgsql-performance |
On Wed, 7 May 2008 13:02:57 -0700
"John Smith" <sodgodofall(at)gmail(dot)com> wrote:
> Hi,
>
> I have a large database (multiple TBs) where I'd like to be able to do
> a backup/restore of just a particular table (call it foo). Because
> the database is large, the time for a full backup would be
> prohibitive. Also, whatever backup mechanism we do use needs to keep
> the system online (i.e., users must still be allowed to update table
> foo while we're taking the backup).
> Does anyone see a problem with this approach (e.g., correctness,
> performance, etc.)? Or is there perhaps an alternative approach using
> some other postgresql mechanism that I'm not aware of?
Why are you not just using pg_dump -t ? Are you saying the backup of
the single table pg_dump takes to long? Perhaps you could use slony
with table sets?
Joshua D. Drake
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