Re: newbie table design question

From: Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: Sam Mason <sam(at)samason(dot)me(dot)uk>, pgsql-general(at)postgresql(dot)org
Subject: Re: newbie table design question
Date: 2009-06-02 13:33:46
Message-ID: 2f4958ff0906020633i1b5caa10wd65a15467fd44a5f@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

On Tue, Jun 2, 2009 at 2:27 PM, Merlin Moncure <mmoncure(at)gmail(dot)com> wrote:

> _IF_ arrays fit your requirements, they are an extremely compact and
> efficient way to store your data.  The requirements are exact..you
> can't update or extract a single piece of data out of a block
> efficiently.  While indexing techniques are possible with gist, they
> are moderate help at best.  But if arrays fit, your table will be a
> fraction of size of the 'row per datum' approach, at the cost of
> flexibility.  arrays are an enormous footgun when used in tables, but
> if used properly can work well.

Gin index works with arrays too.

--
GJ

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Carlos Oliva 2009-06-02 13:34:15 Schema, database, or tables in different folders?
Previous Message Martin Gainty 2009-06-02 13:32:31 Re: Query timeout in dbcp