[jira] [Resolved] (JENA-1277) Spatial Queries Very Slow For Large Databases

["Osma Suominen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-1277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Osma Suominen resolved JENA-1277.
---------------------------------
    Resolution: Fixed

Right. I was hoping for the original reporter to confirm the fix, but he hasn't responded. I will assume it is fixed so I will close this. As Andy noted, it can be reopened if necessary.

> 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
>             Fix For: Jena 3.2.0
>
>         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.



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