Re: SP-GIST docs and examples

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SP-GIST docs and examples
Date: 2012-06-07 09:35:35
Message-ID: CABUevEx+w=MmVvCXcO9eRb8h+Oy7H3FYFYrE-VxOE-KO=AfS9g@mail.gmail.com
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On Thursday, June 7, 2012, Simon Riggs wrote:

> I know Oleg has been discussing quad trees for years now, so SP-GIST
> sounds like a great feature.
>
> The docs on SP-GIST simply suggest people read the code, which is way
> below our normal standard of documentation.
>

It's the same we have for normal GiST indexes, no? It's under "internals",
I think it's ok in there.

CREATE INDEX contains no examples involving SP-GIST indexes.
>
> It seems likely that the first thing a user will ask is When can I use
> it? How do I create one? When should I use it in comparison with
> existing methods?
>

This is the problem though - it only has internals documentation, and no
end-user documentation.

Not sure GiST has that much end-user documentation either. And it is
included in things like the FTI docs.

> ISTM that if we mention this as a major feature in 9.2, and I think we
> should, that there should be something more about these in the shared
> docs.
>

+1, it should definitely get some more docs if possible.

//Magnus

--
Magnus Hagander
Me: http://www.hagander.net/
Work: http://www.redpill-linpro.com/

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