[postgis-users] Compare SQL Server 2008 Spatial, PostGIS, MySQLfunctionality

[Paragon]

Thanks Martin for the feed back.  We'll update the docs accordingly. 

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Martin
Davis
Sent: Thursday, July 17, 2008 8:24 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] Compare SQL Server 2008 Spatial, PostGIS,
MySQLfunctionality

A couple of comments:

Web Mapping Toolkits - the latest release of MapServer claims to support
SQLServer (although with what actual functionality I don't know)

Spatial Indexes - SQLServer does use a multi-level grid hierarchy as stated,
but Oracle and IBM do not.  Oracle supports an R-tree index, and recommends
using it for spatial indexing.  IBM I think uses the somewhat bizarre
Hipparchus index (although they may also support something more orthodox).
A key difference between R-trees and grid indexes is that R-trees are
self-tuning and do not require any magic configuration parameters.


Paragon wrote:
> As part of our due diligence work, we are formulating a comparison of 
> the spatial functionality offered by SQL Server 2008 Spatial, PostGIS and
MySQL.
> Its currently in draft, but we hope to release within the next week.
>
> We would appreciate if people could take a quick look at it and let us 
> know if you see any gross errors or important things we left out.  
> Most of this information we curled from reading the help docs of each 
> product and from our general familiarity with the databases and GIS 
> products out there.  We tried to be as fair as possible.
>
>
> http://www.bostongis.com/PrinterFriendly.aspx?content_name=sqlserver20
> 08_pos
> tgis_mysql_compare
>
> Thanks,
> Regina and Leo
>
>
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
>
>   

--
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022

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