mongodb - Search two location points in one go using Mongodb

Question

Say I have a document, which looks like

{loc:{start:[x,y],end:[x1,y1]}} 

with 2dsphere index, and I want to search for all the documents that have the same start and end points in one query. Is it possible to do it in MongoDB?

Answer 1

A geospatial index can only cover one field with a legacy coordinate pair (array with two values) or a valid GeoJSON Point, Polygon or LineString. That means you can only index either the start-position or the end-position with a geospatial index.

But this is not a problem when you are searching for an exact match. A 2dsphere index offers some additional geographical operators, but when you only need to test for exact equality, you don't need those and can treat your geo-coordinates like plain old data. So when you just add a vanilla index on the loc field and use a vanilla find() with the values you are searching, you will get your matches.