I have a recent planet pbf and am finding duplicate node Ids in some regions. Can someone explain to me why this is happening? The duplicates always have different versions and changeset_ids. One of the duplicates (not always the newest or oldest) always has empty lat long data. What is going on? Why do these null rows not show up in a PGSnapShot load? What are these artifacts of? They don't seem numerous enough to be any sort of actual change history.

Example: id version user_id tstamp changeset_id

77875 2 131476 2009-07-08 14:52:45.0000000 1776041 Has lat long data

77875 51 1227748 2017-12-11 08:43:34.0000000 54543387 Has empty lat long data

asked 26 Nov '18, 22:53

bwoods's gravatar image

bwoods
26112
accept rate: 0%


You don't have duplicate node IDs. You have a node ID in the first line, and a relation id in the second line.

Each OSM object type (nodes, ways, relations) has its own number range. Node #77875 has nothing to do with relation #77875.

Apparently you are mis-interpreting a relation as a node; little surprise, then, that the relation has no latitude and longitude.

permanent link

answered 27 Nov '18, 00:27

Frederik%20Ramm's gravatar image

Frederik Ramm ♦
70.6k826391105
accept rate: 24%

1

Right you are. My SqlServer port of osmosis was writing relations to the wrong table sometimes. Good catch, thank you.

(27 Nov '18, 01:03) bwoods

@bwoods: meta: Please could you mark an answer as accepted if it solves your problem.

(27 Nov '18, 19:26) aseerel4c26 ♦
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×217
×73
×49
×17

question asked: 26 Nov '18, 22:53

question was seen: 428 times

last updated: 27 Nov '18, 19:26

powered by OSQA