It looks like mongodb offers two similar functions for geospatial queries - $near and $geoNear. According to the mongo docs

The geoNear command provides an alternative to the $near operator. In addition to the functionality of $near, geoNear returns additional diagnostic information.

It looks like geoNear provides a superset of the near functionality. For example, near seems to only return the closest 100 documents, whereas geoNear lets you specify a maximum. Is there a reason to use near instead of geoNear? Is one more efficient than the other?

mongodb geospatial
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