more style docs

This commit is contained in:
Sarah Hoffmann
2019-01-03 21:08:38 +01:00
parent e24ea7c1bb
commit f1fe70656f
2 changed files with 45 additions and 14 deletions

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@@ -22,7 +22,7 @@ The gazetteer style produces a single table `place` with the following rows:
A single OSM object may appear multiple times in this table when it is tagged
with multiple tags that may constitute a principal tag. Take for example a
motorway bridge. In OSM, this would be a way which is tagged with
`highway=motoway` and `bridge=yes`. This way would appear in the `place` table
`highway=motorway` and `bridge=yes`. This way would appear in the `place` table
once with `class` of `highway` and once with a `class` of `bridge`. Thus the
*uique key* for `place` is (`osm_type`, `osm_id`, `class`).