[postgis-devel] Death to Pointless Operators

[Paragon Corporation]

Yes. 

-----Original Message-----
From: postgis-devel-bounces at postgis.refractions.net
[mailto:postgis-devel-bounces at postgis.refractions.net] On Behalf Of Paul
Ramsey
Sent: Tuesday, December 21, 2010 1:35 PM
To: PostGIS Development Discussion
Subject: Re: [postgis-devel] Death to Pointless Operators

These are n-dimensional indexes now.
left/right/above/below/overleft/overright are defined on the first two axes,
they make sense (to the extent that the make sense at all) in a 2d context.
Should I just implement them in 2d and ignore the higher dimensions?

P.

On Tue, Dec 21, 2010 at 2:32 AM, Mark Cave-Ayland
<mark.cave-ayland at siriusit.co.uk> wrote:
> Paul Ramsey wrote:
>
>> I vote that we Destroy, Destroy, Destroy, leaving behind only
>>
>> &&  bbox overlaps
>> @  bbox within
>> ~  bbox contains
>> ~=  bbox same
>>
>> P.
>
> -1. I definitely have a use case for geometry_left/below/right/above 
> which is you can use a binary search to quickly find the real extent 
> of a stupidly large dataset using only the index.
>
> Secondly, the operators are synchronised with the PostgreSQL R-Tree 
> operators and so we could potentially prevent users from moving their 
> application from native PostgreSQL over to PostGIS.
>
>
> ATB,
>
> Mark.
>
> --
> Mark Cave-Ayland - Senior Technical Architect PostgreSQL - PostGIS 
> Sirius Corporation plc - control through freedom 
> http://www.siriusit.co.uk
> t: +44 870 608 0063
>
> Sirius Labs: http://www.siriusit.co.uk/labs 
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