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Add support for cemetery tagged as grave_yard (#1175)

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Fixes #1057

This PR adds `amenity=grave_yard` to the `landuse` layer.  A unification function was implemented which encodes all `class=grave_yard` as `class=cemetery` in the tiles, which adds these features for existing users of `class=cemetery` with no change.  The unification function can serve as a basis for any other tags that we might want to unify in the `landuse` layer.

Tile rendering for an `amenity=grave_yard`.  ([Location](https://www.openstreetmap.org/way/857383420))
![image](https://user-images.githubusercontent.com/3254090/129456504-187d307a-2a20-4b13-af0a-a2850503bb4f.png)

Tile rendering for a `landuse=cemetery`.  ([Location](https://www.openstreetmap.org/way/385779531))
![image](https://user-images.githubusercontent.com/3254090/129456654-494c0eb4-9785-467c-b1a0-44abb7f9d5e9.png)
This commit is contained in:
Brian Sperlongano
2021-08-18 03:09:51 -04:00
committed by GitHub
parent 45d825e212
commit d186856ac5
5 changed files with 15 additions and 2 deletions
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5
layers/landuse/landuse.sql
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@@ -49,14 +49,15 @@ AS
$$
SELECT osm_id,
geometry,
COALESCE(
landuse_unify(
COALESCE(
NULLIF(landuse, ''),
NULLIF(amenity, ''),
NULLIF(leisure, ''),
NULLIF(tourism, ''),
NULLIF(place, ''),
NULLIF(waterway, '')
) AS class
)) AS class
FROM (
-- etldoc: ne_50m_urban_areas_gen_z4 -> layer_landuse:z4
SELECT osm_id,