Re: PostgreSQL, OLAP, and Large Clusters

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От Chris Travers
Тема Re: PostgreSQL, OLAP, and Large Clusters
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Msg-id CAKt_ZfuN+RkVuhWs0pBE=fFJtbJRW4hg6he-dhoiZOq0T3+C+w@mail.gmail.com
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Ответ на Re: PostgreSQL, OLAP, and Large Clusters  (Ryan Kelly <rpkelly22@gmail.com>)
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On Thu, Sep 27, 2012 at 11:34 AM, Ryan Kelly <rpkelly22@gmail.com> wrote:


> At this time I would try:
> - Postgres-XC
From what I understand, more of a write-scaleable-oriented solution. We
mostly will need read scalability. I also don't think it really handles
redundancy.

From my understanding it gets around the key read scalability issue in PostgreSQL, which is a lack of intraquery parallelism.  Since components of a query can run on different storage nodes concurrently, this helps a great deal.  It doesn't do the things a column store would help with but it is still a major step forward.

As for redundancy, Postgres-XC handles redundancy on the coordinator side, but on the storage node side, I believe you could use streaming replication and other standard PostgreSQL approaches to redundancy there. 

Hope this helps,
Chris Travers

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