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https://issues.apache.org/jira/browse/COUCHDB-553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12772494#action_12772494
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Volker Mische commented on COUCHDB-553:
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I'd like to see r-trees for geospatial queries,
http://github.com/cchandler/RTreeCouchDB looks like a good start.
But for multiple range queries (like lat/lon searches) I'd propose an range
tree (which is a b-tree with other dimensions as b-trees in tree nodes).
> Add KD-Tree or R-Tree index
> ---------------------------
>
> Key: COUCHDB-553
> URL: https://issues.apache.org/jira/browse/COUCHDB-553
> Project: CouchDB
> Issue Type: Wish
> Environment: All
> Reporter: Christopher O'Connell
>
> Add the ability to have k-dimensional queries. This would prove invaluable
> both for latitude/longitude type searches, but also for any other question
> which requires confining the data in multiple dimensions.
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