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Fix z-order grouping (#1768)

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This PR fixes a bug that is producing duplicate features in the `transportation_name` layer because we aren't de-duplicating the z-order field.
This commit is contained in:
Brian Sperlongano 2025-11-21 07:20:23 -05:00 committed by GitHub
parent 94676c3816
commit 855ad8d96d
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1 changed files with 6 additions and 4 deletions
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10
layers/transportation_name/update_transportation_name.sql
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@ -437,17 +437,19 @@ BEGIN
-- etldoc: osm_transportation_name_linestring -> osm_transportation_name_linestring_gen1
INSERT INTO osm_transportation_name_linestring_gen1 (id, geometry, tags, ref, highway, subclass, brunnel, network,
route_1, route_2, route_3, route_4, route_5, route_6)
route_1, route_2, route_3, route_4, route_5, route_6, z_order)
SELECT MIN(id) as id,
ST_Simplify(ST_LineMerge(ST_Collect(geometry)), 50) AS geometry,
tags, ref, highway, subclass, brunnel, network,
route_1, route_2, route_3, route_4, route_5, route_6
route_1, route_2, route_3, route_4, route_5, route_6,
MIN(z_order) AS z_order
FROM (
SELECT id,
geometry,
tags, ref, highway, subclass,
visible_text(geometry, brunnel, 9) AS brunnel,
network, route_1, route_2, route_3, route_4, route_5, route_6
network, route_1, route_2, route_3, route_4, route_5, route_6,
z_order
FROM osm_transportation_name_linestring
) osm_transportation_name_linestring_gen1_pre_merge
WHERE (
@ -465,7 +467,7 @@ BEGIN
highway = excluded.highway, subclass = excluded.subclass,
brunnel = excluded.brunnel, network = excluded.network, route_1 = excluded.route_1,
route_2 = excluded.route_2, route_3 = excluded.route_3, route_4 = excluded.route_4,
route_5 = excluded.route_5, route_6 = excluded.route_6;
route_5 = excluded.route_5, route_6 = excluded.route_6, z_order = excluded.z_order;
-- Analyze source table
ANALYZE osm_transportation_name_linestring_gen1;