What import settings produce these extra fields?

[alpoi-x]

We have a photon (0.3.4) instance that was created long ago, and the arguments used when importing Nominatim data have been lost to time. For search ?q=Berlin, the first feature returned is shown below. We are configuring a new photon (0.4.3) instance and documenting the process (so as to not repeat the mistakes of our predecessors), but need to retain feature parity. By looking at the response, how might we infer the command line arguments used in the original setup?

Full response object

{
  "geometry": {
    "coordinates": [
      13.4025498,
      52.5015217
    ],
    "type": "Point"
  },
  "type": "Feature",
  "place_id": "257399861",
  "properties": {
    "osm_id": 62422,
    "osm_type": "R",
    "extent": [
      13.088345,
      52.6755087,
      13.7611609,
      52.3382448
    ],
    "country": "Germany",
    "osm_key": "place",
    "countrycode": "DE",
    "osm_value": "state",
    "name": "Berlin",
    "extra_fields": "{\"rank_address\":8,\"address\":{},\"name\":{\"name:bs\":\"Berlin\",\"name:se\":\"Berlin\",\"name:sk\":\"Berlín\",\"name:nan\":\"Berlin\",\"name:sh\":\"Berlin\",\"name:scn\":\"Birlinu\",\"name:ka\":\"ბერლინი\",\"name:nap\":\"Berlino\",\"name:so\":\"Berlin\",\"name:sl\":\"Berlin\",\"name:sr\":\"Берлин\",\"name:kk\":\"Берлин\",\"name:bar\":\"Berlin\",\"name:pms\":\"Berlin\",\"name:ca\":\"Berlín\",\"name:sq\":\"Berlini\",\"name:nah\":\"Berlin\",\"name:sv\":\"Berlin\",\"name:ko\":\"베를린\",\"name:sw\":\"Berlin\",\"name:su\":\"Berliini\",\"name:nrm\":\"Bèrlîn\",\"name:roa-tara\":\"Berline\",\"name:kv\":\"Берлин\",\"name:kw\":\"Berlin\",\"name:sco\":\"Berlin\",\"name:ku\":\"Berlîn\",\"name:frp\":\"Bèrlin\",\"name:cs\":\"Berlín\",\"name:tet\":\"Berlín\",\"name:ta\":\"பெர்லின்\",\"name:ar\":\"برلين\",\"name:ja\":\"ベルリン\",\"name:rm\":\"Berlin\",\"name:zu\":\"Berlin\",\"name:pdc\":\"Berlin, Deitschland\",\"name:az\":\"Berlin\",\"name:csb\":\"Berlëno\",\"name:ba\":\"Берлин\",\"name:ro\":\"Berlin\",\"name:be\":\"Берлін\",\"name:ru\":\"Берлин\",\"name:bi\":\"Berlin\",\"name:bg\":\"Берлин\",\"name:lmo\":\"Berlin\",\"name:ksh\":\"Bälliin\",\"name:bn\":\"বার্লিন\",\"name:jv\":\"Berlin\",\"name:be-tarask\":\"Бэрлін\",\"name:br\":\"Berlin\",\"name:sc\":\"Berlinu\",\"name:bo\":\"པེ་ལིང་\",\"name:uk\":\"Берлін\",\"name:arc\":\"ܒܪܠܝܢ\",\"name:mg\":\"Berlin\",\"name:ml\":\"ബെര്\\u200dലിന്\",\"name:ur\":\"برلن\",\"name:mk\":\"Берлин\",\"name:prefix:state\":\"Land\",\"name:mn\":\"Берлин\",\"name:el\":\"Βερολίνο\",\"name:mt\":\"Berlin\",\"name:cbk-zam\":\"Berlín\",\"name:mr\":\"बर्लिन\",\"name:uz\":\"Berlin\",\"name:ms\":\"Berlin\",\"name:tpi\":\"Berlin\",\"name:en\":\"Berlin\",\"name:eo\":\"Berlino\",\"name:et\":\"Berliin\",\"name:eu\":\"Berlin\",\"name:es\":\"Berlín\",\"name:cv\":\"Берлин\",\"name:tg\":\"Берлин\",\"name:th\":\"เบอร์ลิน\",\"name:jbo\":\"berlin\",\"name:te\":\"బెర్లిన్\",\"name:cu\":\"Берлинъ\",\"name:tl\":\"Berlin\",\"name:la\":\"Berolinum\",\"name:cy\":\"Berlin\",\"name:lb\":\"Berlin\",\"name:lg\":\"Berlin\",\"name:stq\":\"Berlin\",\"name:tt\":\"Берлин\",\"name:da\":\"Berlin\",\"name:li\":\"Berlien\",\"name:tr\":\"Berlin\",\"name:de\":\"Berlin\",\"name:myv\":\"Берлин ош\",\"name:ln\":\"Berlin\",\"name:lt\":\"Berlynas\",\"name:ty\":\"Berlin\",\"name:lv\":\"Berlīne\",\"name:short\":\"BE\",\"name:fy\":\"Berlyn\",\"name:oc\":\"Berlin\",\"name:lzh\":\"柏林\",\"name:pam\":\"Berlin\",\"name:wo\":\"Berlin\",\"name:haw\":\"Pelelina\",\"name:rmy\":\"Berlin\",\"name:ga\":\"Beirlín\",\"name:vec\":\"Berlin\",\"name:gd\":\"Berlin\",\"name:als\":\"Berlin\",\"name:os\":\"Берлин\",\"name:gn\":\"Berlin\",\"name:ilo\":\"Berlin, Alemania\",\"name:gl\":\"Berlín\",\"name:gv\":\"Berleen\",\"name:tzl\":\"Berlin\",\"name:na\":\"Berlin\",\"name:vi\":\"Berlin\",\"name:nds\":\"Berlin\",\"name:vls\":\"Berlyn\",\"name:fa\":\"برلین\",\"name:nn\":\"Berlin\",\"name:nl\":\"Berlijn\",\"name:fi\":\"Berliini\",\"name:no\":\"Berlin\",\"name:diq\":\"Berlin\",\"name:roa-rup\":\"Berlin\",\"name:lij\":\"Berlin\",\"name\":\"Berlin\",\"name:fr\":\"Berlin\",\"name:fo\":\"Berlin\",\"name:ast\":\"Berlín\",\"alt_name:vi\":\"Béc-lin\",\"name:fur\":\"Berlin\",\"name:bat-smg\":\"Berlīns\",\"official_name\":\"Stadtstaat Berlin\",\"name:hy\":\"Բեռլին\",\"name:ang\":\"Berlin\",\"name:sah\":\"Берлин\",\"name:crh\":\"Berlin\",\"name:ia\":\"Berlin\",\"name:yo\":\"Berlin\",\"name:id\":\"Berlin\",\"name:ie\":\"Berlin\",\"name:nov\":\"Berlin\",\"name:qu\":\"Berlin\",\"name:af\":\"Berlyn\",\"name:io\":\"Berlin\",\"name:it\":\"Berlino\",\"name:am\":\"በርሊን\",\"name:prefix:city\":\"Kreisfreie Stadt\",\"name:is\":\"Berlín\",\"name:an\":\"Berlín\",\"name:zh\":\"柏林\",\"name:szl\":\"Berlin\",\"name:hsb\":\"Berlin\",\"name:pl\":\"Berlin\",\"name:dsb\":\"Barliń\",\"name:he\":\"ברלין\",\"name:pt\":\"Berlim\",\"name:hi\":\"बर्लिन\",\"name:yue\":\"柏林\",\"name:kab\":\"Berlin\",\"old_name:vi\":\"Bá Linh\",\"name:ht\":\"Bèlen\",\"name:hr\":\"Berlin\",\"name:yi\":\"בערלין\",\"name:hu\":\"Berlin\"},\"extratags\":{\"contact:facebook\":\"http://www.facebook.com/Berlin\",\"linked_place\":\"state\",\"place\":\"state\",\"wikipedia\":\"de:Berlin\",\"wikidata\":\"Q64\",\"contact:website\":\"http://www.berlin.de\",\"population\":\"3440441\"}}",
    "type": "region",
    "parent_place_id": 0
  }
}

Parsed "extra_fields"

{
    "rank_address": 8,
    "address": {},
    "name": {
        "name:bs": "Berlin",
        "name:se": "Berlin",
        "name:sk": "Berlín",
        "name:nan": "Berlin",
        "name:sh": "Berlin",
        "name:scn": "Birlinu",
        "name:ka": "ბერლინი",
        "name:nap": "Berlino",
        "name:so": "Berlin",
        "name:sl": "Berlin",
        "name:sr": "Берлин",
        "name:kk": "Берлин",
        "name:bar": "Berlin",
        "name:pms": "Berlin",
        "name:ca": "Berlín",
        "name:sq": "Berlini",
        "name:nah": "Berlin",
        "name:sv": "Berlin",
        "name:ko": "베를린",
        "name:sw": "Berlin",
        "name:su": "Berliini",
        "name:nrm": "Bèrlîn",
        "name:roa-tara": "Berline",
        "name:kv": "Берлин",
        "name:kw": "Berlin",
        "name:sco": "Berlin",
        "name:ku": "Berlîn",
        "name:frp": "Bèrlin",
        "name:cs": "Berlín",
        "name:tet": "Berlín",
        "name:ta": "பெர்லின்",
        "name:ar": "برلين",
        "name:ja": "ベルリン",
        "name:rm": "Berlin",
        "name:zu": "Berlin",
        "name:pdc": "Berlin, Deitschland",
        "name:az": "Berlin",
        "name:csb": "Berlëno",
        "name:ba": "Берлин",
        "name:ro": "Berlin",
        "name:be": "Берлін",
        "name:ru": "Берлин",
        "name:bi": "Berlin",
        "name:bg": "Берлин",
        "name:lmo": "Berlin",
        "name:ksh": "Bälliin",
        "name:bn": "বার্লিন",
        "name:jv": "Berlin",
        "name:be-tarask": "Бэрлін",
        "name:br": "Berlin",
        "name:sc": "Berlinu",
        "name:bo": "པེ་ལིང་",
        "name:uk": "Берлін",
        "name:arc": "ܒܪܠܝܢ",
        "name:mg": "Berlin",
        "name:ml": "ബെര്\u200dലിന്",
        "name:ur": "برلن",
        "name:mk": "Берлин",
        "name:prefix:state": "Land",
        "name:mn": "Берлин",
        "name:el": "Βερολίνο",
        "name:mt": "Berlin",
        "name:cbk-zam": "Berlín",
        "name:mr": "बर्लिन",
        "name:uz": "Berlin",
        "name:ms": "Berlin",
        "name:tpi": "Berlin",
        "name:en": "Berlin",
        "name:eo": "Berlino",
        "name:et": "Berliin",
        "name:eu": "Berlin",
        "name:es": "Berlín",
        "name:cv": "Берлин",
        "name:tg": "Берлин",
        "name:th": "เบอร์ลิน",
        "name:jbo": "berlin",
        "name:te": "బెర్లిన్",
        "name:cu": "Берлинъ",
        "name:tl": "Berlin",
        "name:la": "Berolinum",
        "name:cy": "Berlin",
        "name:lb": "Berlin",
        "name:lg": "Berlin",
        "name:stq": "Berlin",
        "name:tt": "Берлин",
        "name:da": "Berlin",
        "name:li": "Berlien",
        "name:tr": "Berlin",
        "name:de": "Berlin",
        "name:myv": "Берлин ош",
        "name:ln": "Berlin",
        "name:lt": "Berlynas",
        "name:ty": "Berlin",
        "name:lv": "Berlīne",
        "name:short": "BE",
        "name:fy": "Berlyn",
        "name:oc": "Berlin",
        "name:lzh": "柏林",
        "name:pam": "Berlin",
        "name:wo": "Berlin",
        "name:haw": "Pelelina",
        "name:rmy": "Berlin",
        "name:ga": "Beirlín",
        "name:vec": "Berlin",
        "name:gd": "Berlin",
        "name:als": "Berlin",
        "name:os": "Берлин",
        "name:gn": "Berlin",
        "name:ilo": "Berlin, Alemania",
        "name:gl": "Berlín",
        "name:gv": "Berleen",
        "name:tzl": "Berlin",
        "name:na": "Berlin",
        "name:vi": "Berlin",
        "name:nds": "Berlin",
        "name:vls": "Berlyn",
        "name:fa": "برلین",
        "name:nn": "Berlin",
        "name:nl": "Berlijn",
        "name:fi": "Berliini",
        "name:no": "Berlin",
        "name:diq": "Berlin",
        "name:roa-rup": "Berlin",
        "name:lij": "Berlin",
        "name": "Berlin",
        "name:fr": "Berlin",
        "name:fo": "Berlin",
        "name:ast": "Berlín",
        "alt_name:vi": "Béc-lin",
        "name:fur": "Berlin",
        "name:bat-smg": "Berlīns",
        "official_name": "Stadtstaat Berlin",
        "name:hy": "Բեռլին",
        "name:ang": "Berlin",
        "name:sah": "Берлин",
        "name:crh": "Berlin",
        "name:ia": "Berlin",
        "name:yo": "Berlin",
        "name:id": "Berlin",
        "name:ie": "Berlin",
        "name:nov": "Berlin",
        "name:qu": "Berlin",
        "name:af": "Berlyn",
        "name:io": "Berlin",
        "name:it": "Berlino",
        "name:am": "በርሊን",
        "name:prefix:city": "Kreisfreie Stadt",
        "name:is": "Berlín",
        "name:an": "Berlín",
        "name:zh": "柏林",
        "name:szl": "Berlin",
        "name:hsb": "Berlin",
        "name:pl": "Berlin",
        "name:dsb": "Barliń",
        "name:he": "ברלין",
        "name:pt": "Berlim",
        "name:hi": "बर्लिन",
        "name:yue": "柏林",
        "name:kab": "Berlin",
        "old_name:vi": "Bá Linh",
        "name:ht": "Bèlen",
        "name:hr": "Berlin",
        "name:yi": "בערלין",
        "name:hu": "Berlin"
    },
    "extratags": {
        "contact:facebook": "http://www.facebook.com/Berlin",
        "linked_place": "state",
        "place": "state",
        "wikipedia": "de:Berlin",
        "wikidata": "Q64",
        "contact:website": "http://www.berlin.de",
        "population": "3440441"
    }
}

[lonvia]

I have no memory of such a field extra_fields having ever existed. The format also looks odd (with JSON inside a string). So I would guess that you have hacked something into your photon version that dumps all information from Nominatim into this 'extra_fields' property in Photon.

We do have added in the meantime an option -extra-tags (see #576) which allows to add at least a fix set from the extratags field but this is still far away from what you have added in your version.

[alpoi-x]

Thanks for the response - that makes sense 😄

Another discrepancy is the missing place_id, and the parent_place_id property. Do you suppose these have also been hacked in?

[lonvia]

Yes. And it's not a good idea to use that information. place_id is an internal ID specific to the installation. When you reimport Nominatim, the IDs will all be different.

[alpoi-x]

Fantastic 😂 Thank you for your insight!