[
https://issues.apache.org/jira/browse/JENA-1277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15826126#comment-15826126
]
ASF GitHub Bot commented on JENA-1277:
--------------------------------------
Github user ajs6f commented on the issue:
https://github.com/apache/jena/pull/205
Sure, so my claims are 1) this is a good PR :) and 2) if we want to offer
the kind of functionality that you are removing, that's cool, but we should do
it in some appropriate, public, maintainable way (extension function?). I don't
think I'm saying anything too profound here. :) Should we open a ticket to
provide access to Lucene's spatial calculations as extension functions? I'm not
saying I'm going to go work on that right away, but it would be worth not
losing sight of your insight about people's expectations of being able to order
by distance easily.
> Spatial Queries Very Slow For Large Databases
> ---------------------------------------------
>
> Key: JENA-1277
> URL: https://issues.apache.org/jira/browse/JENA-1277
> Project: Apache Jena
> Issue Type: Improvement
> Components: Spatial
> Affects Versions: Jena 3.1.1
> Environment: Linux Ubuntu
> Reporter: samur araujo
> Assignee: Osma Suominen
> Attachments: spatial-assembler.ttl
>
>
> I loaded geonames on Jena but the spatial queries take more than 3s to
> execute. The query is below:
> PREFIX spatial: <http://jena.apache.org/spatial#>
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> SELECT distinct ?place
> {
> ?place spatial:intersectBox (32.55668 -117.12865 32.56668 -117.13865) .
>
> }
> The data can be downloaded here:
> https://drive.google.com/file/d/0B-fwYPJYT1GOYVVIZF9ROUxzclk/view?usp=sharing
> For small datasets the queries are executed in 200ms, very fast. I noticed
> that when I access the lucene index directly the queries are also very fast,
> about 20ms.
> The issue may be related to the pos-processing of lucene results.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
