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I recently installed several triple stores to test the performance of them regarding geospatial queries (when possible). One of those triple stores is Strabon. In the other triple stores it was necessary to do an index or specific a spatial index to optimize query times.

However I couldn't find anything regarding Strabon and indexing of the data. Does anyone know if it's possible and how it's done?

Alex van den Hoogen
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1 Answers1

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Does the User Guide not cover this?

In the section titled Creating a spatially enabled database it says the following:

Spatially-enabled databases permit the use of spatial function calls. MonetDB creates spatially-enabled databases by default if you have enabled the geom module. More information on how to create a spatially-enabled database in PostGIS can be found here: http://postgis.refractions.net/docs/.

Followed by a bunch of steps you need to run to enable this

RobV
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  • You are right that PostGIS installation is covered in the Strabon user guide. However in other software (like Virtuoso or Owlim) you will have to run a seperate command to create a spatial index. In Parliament for example there is a button/link in the administrator interface which does the same thing. – Alex van den Hoogen Apr 30 '14 at 13:32
  • The phrasing appears in the quote I reproduced appears to imply that configuring PostGIS appropriately should be sufficient and that spatial indexing is automatic once this is done – RobV Apr 30 '14 at 14:34
  • I can see what you are getting at. I also contacted the developer with the same question (and a patch) and I hope he will reply to me shortly. Thanks for your input though. – Alex van den Hoogen Apr 30 '14 at 14:43