Some of my REST map services contain feature layers with a valid esriFieldTypeGeometry and some have no esriFieldTypeGeometry specified at all. In the REST services withno esriFieldTypeGeometry if I turn on feature access, I can get the geometry returned in my JSON by using the .../FeatureServer/ URL (rather than .../MapServer/) but I am still confused about why some of my map services do not have an esriFieldTypeGeometry specified.
Could it have anything to do with using a SDE View as my data source?