ST_ASGeoJSONRow: cannot set id directly on feature

[jtojnar]

As per ​GeoJSON RFC, the id should go directly to the feature object rather than to properties:

If a Feature has a commonly used identifier, that identifier SHOULD be included as a member of the Feature object with the name "id"

But ST_ASGeoJSONRow does not support this so one needs to tediously build JSON object manually with jsonb_build_object as ​described in the manual.

Ideally, there would be a new argument that would allow specifying which column to promote to id.