[Geocoding] [OpenStreetMap] #4726: strange extra results of street with wrong postal code

[OpenStreetMap]

#4726: strange extra results of street with wrong postal code
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 Reporter:  skyper     |      Owner:  geocoding@…
     Type:  defect     |     Status:  new
 Priority:  minor      |  Milestone:
Component:  nominatim  |    Version:
 Keywords:  post code  |
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 Searching
 http://nominatim.openstreetmap.org/search.php?q=mercystra%C3%9Fe&viewbox=
 returns in first place one valid result:
 http://nominatim.openstreetmap.org/details.php?place_id=42638941

 This is not the best choice, as I expected to get the whole street and not
 just a part (situation see below) but OK.

 In third place I get:
 http://nominatim.openstreetmap.org/details.php?place_id=82189640 with a
 wrong postal code. Do not know where this comes from but seen this code on
 several search for streets around this area. Please do not show this post
 code as it is an individual post code for the administration and not valid
 for any street.

 === situation ===

 * the street has a valid associatedStreet relation with post code (79100).
 This should be the first hit and only valid post code.
 * the postal code is tagged in the whole city either with the admin
 boundary relation or if needed as an own boundary relation
 boundary=postal_code.

 Please do not use the postal_code of nodes with place=* as this might be
 totally wrong.
 Thanks

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Ticket URL: <https://trac.openstreetmap.org/ticket/4726>
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