Re: Fixing r-tree semantics

> -----Original Message-----
> From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
> Sent: 24 June 2005 14:27
> To: Mark Cave-Ayland (External)
> Cc: bwhite(at)frognet(dot)net; teodor(at)sigaev(dot)ru; oleg(at)sai(dot)msu(dot)su;
> pgsql-hackers(at)postgresql(dot)org; 'PostGIS Development Discussion'
> Subject: Re: Fixing r-tree semantics

(cut)

> Well, I was proposing more or less that but with ^ because of
> the precedent of the two existing box_above/box_below
> operator names. However, I'm quite happy to adopt your names,
> since that's probably a more widely used precedent. Sold,
> unless there are objections.
>
> (BTW, it does look a bit odd that the "|" moves around in
> your names. But I don't dislike it enough to not follow the
> precedent.)

The thinking behind it was that the | represents the x-axis if you tilt you
head right 90 degrees. In effect, it would allow you to 'read' the operator
without having to go and look up what it does.

> > It would be harder for us to change these operators since they already
> > exist, but then again it would be useful from a maintenance point of
> > view to keep the strategy numbers and operators the same across both
> > implementations.
>
> Agreed, I'll use your strategy number assignments too.

Alright no problems.

Many thanks,

Mark.

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