Restaurant names, street addresses, and coordinates in Oligrail come from OpenStreetMap and stay in the osm_places table. Our restaurants table stores our own id, ZIP, status, an optional verified spelling taken from a cited page, and an optional place id. It does not copy the coordinates.
This is a derived database under the Open Database License (ODbL) 1.0. You may use, share, and adapt it if you attribute OpenStreetMap and share a derived database under the same license. The full table is at /v1/osm-export (JSON) and /v1/osm-export.csv.