Table 2 Example of the delta encoding in OSH entities
From: OSHDB: a framework for spatio-temporal analysis of OpenStreetMap history data
OSM | OSH |
|---|---|
osm-way { | osh-way { |
id: 1234, | id: 1234, |
version: 3, | versions: [{ |
uid: 10, | version: 3, |
timestamp: 1000, | uid: 10, |
tags: [k1:v1,k2:v2;k3:v3], | time-delta: 1000, |
refs: [1,2,3,4] | tags-added: |
} | [k1:v1,k2:v2,k3:v3] |
osm-way { | refs: [1,2,3,4] |
id: 1234, | }, { |
version: 2, | time-delta: 100, |
uid: 10, | tags-removed: |
timestamp: 900, | [k2:v2,k3:v3] |
tags: [k1:v1], | }, { |
refs: [1,2,3,4] | uid: 5, |
} | time-delta: 500, |
osm-way { | refs-removed: [4] |
id: 1234, | }] |
version: 1, | } |
uid: 5, | |
timestamp: 400, | |
tags: [k1:v1], | |
refs: [1,2,3] | |
} | |