zhangfengcdt opened a new pull request, #1560: URL: https://github.com/apache/sedona/pull/1560
## Did you read the Contributor Guide? - Yes, I have read the [Contributor Rules](https://sedona.apache.org/latest-snapshot/community/rule/) and [Contributor Development Guide](https://sedona.apache.org/latest-snapshot/community/develop/) ## Is this PR related to a JIRA ticket? - Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-XXX. The PR name follows the format `[SEDONA-XXX] my subject`. ## What changes were proposed in this PR? This PR add KNN join implementation. A geospatial k-Nearest Neighbors (kNN) join is a specialized form of the kNN join that specifically deals with geospatial data. This method involves identifying the k-nearest neighbors for a given spatial point or region based on geographic proximity, typically using spatial coordinates and a suitable distance metric like Euclidean or great-circle distance. ## How was this patch tested? Two e2e tests are added. ## Did this PR include necessary documentation updates? - Yes, I have updated the documentation. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@sedona.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org