Re: Columnar store as default for PostgreSQL 10?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: Bráulio Bhavamitra <brauliobo(at)gmail(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Columnar store as default for PostgreSQL 10?
Date: 2016-05-10 18:22:58
Message-ID: 20160510182258.GA12263@momjian.us
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On Mon, Apr 25, 2016 at 11:20:11AM -0300, Alvaro Herrera wrote:
> In our design, columnar or not is going to be an option: you're going to
> be able to say "Dear server, for this table kindly set up columnar
> storage for me, would you? Thank you very much." And then you’re going
> to get a table which may be slower for regular usage but which will rock
> for analytics. For most of your tables the current row-based store will
> still likely be the best option, because row-based storage is much
> better suited to the more general cases.

I am coming late to this thread, but one item not discussed about
columnar storage is the use of compression of identical column values
across rows. Existing Postgres storage only compresses single values,
not values across rows.

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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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