On Tue, Jan 3, 2012 at 6:04 AM, Jan Vlčinský (CAD) <jan.vlcinsky@cad-programs.com> wrote:

Hi all
I would be too interested in this type of feature (geospacial indexes).
This leads to more general feature: schema aware processing. Currently (as far as I know) the dateTime values are indexed as strings, what is in many cases quite inefficient. Knowing the type of the value and using related type of index could lead to much more efficient queries.

On the other hand we must accept, that this type of feature brings quite some complexity - e.g. one has to provide schemas for the data, what to do, if some xml file is not following the schema etc.

It reminds me my old CAD programming times - my client told me, "stay in 2D as long as you can, 3D is not adding but multiplexing the complexity of the work".

This said I would completely understand BaseX team sticking with current "easy" way of doing things.

With best regards

Jan

Ing. Jan Vlčinský
CAD programy
Slunečnicová 338/3, 734 01 Karviná Ráj, Czech Republic
tel: +420-597 602 024; mob: +420-608 979 040
skype: janvlcinsky; GoogleTalk: jan.vlcinsky@gmail.com
http://cz.linkedin.com/in/vlcinsky

On 3 January 2012 10:45, Erdal Karaca <erdal.karaca.de@googlemail.com> wrote:

That is a great question.

I tried to import a sub set of the OpenStreetMap planet file (just germany) which is about 2 GB (bz2 compressed) in size into a basex database.
Unfortunately, after 5% or the like, and this took almost over an hour (I am using an i7/4GB machine, I aborted the procedure.
I am sure with spatial data types support, this procedure can be simplified/optimized a lot...
Having said this, I would be interested in using basex as a backend for GIS data, too :-)

[Forgot to "reply to all", i.e. this message was already sent to Ingo]

2012/1/2 Schildmann, Ingo <Schildmann@karb.de>

Hi,

Our company evaluates BaseX for our project.

A new requirement is to show spatial data with a geographic information system.

Are there any plans for a spatial xquery module for querying GML like the (experimental) module in eXist?

http://exist-db.org/extensions.html#module_spatial

Regards, Ingo

Dr. Karb Informationstechnologien
Im Wolfer 10
70599 Stuttgart
Tel.: 0711 - 4 51 24 – 70
Fax: 0711 - 4 51 24 – 55
Web: http://www.karb.de
Mail: schildmann@karb.de
Skype: ischildmann

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