lokkju opened a new issue #9970: URL: https://github.com/apache/druid/issues/9970
The geographic query documentation is unclear about the relation of latitude/longitude to horizontal/vertical and x/y coordinates for querying. ### Affected Version 0.18.0 (all versions that support spatial queries?) ### Description In Geography: `longitude` is the horizontal dimension and `latitude` is the vertical dimension In Geometry: `x` is the horizontal dimension and `y` is the vertical dimension For Polygons: `abscissa` is the horizontal dimension values and `ordinate` is the vertical dimension values The Geographic Query documentation page has an example that shows indexing dimensions being given as: `"dims": ["lat", "long"]`. The spatial filter documentation for `rectangular` and `radius` bounds specifies queries should provide coordinates as `[x, y, z, …]` This is confusing, and if followed to the letter, won't work as expected. Either I'm misunderstanding something, or else the person who wrote the documentation didn't understand the difference between geographic coordinate order vs geometric coordinate order. The same issues exists with `polygon` bounds, as providing the index dimensions as in the example will require the `abscissa` to contain latitude (vertical) values. The correct fix would be to specify your index dimensions as `["long","lat"]`, but that could be very confusion for anyone who has already been using spatial queries. An alternative is to enshrine the `["lat", "long"]` ordering by specifying that spatial bounds should provide coordinates in ["lat", "long"]` order. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
