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openmaptiles/layers/transportation/update_transportation_merge.sql
Tomas Pohanka e6faa69a70 Fix z7-z4 roads (#1656)
Some US roads were not included in tiles, because the `ST_AsMVTGeom` did not transform geometry (result was NULL). This PR is trying to fix the geometry for `ST_AsMVTGeom`, even if the geometry is marked as valid (`ST_IsValid`). The odd geometry was caused by simplification when it could create `LINESTRING(1 1, 2 2, 1 1)` linestring, which in some cases was not converted into MVT. 

Also, for the US (on zoom 4) keeps just the network `us-interstate` and the `highway=motorway` or `osm_national_network(network)` for the rest of the world.
2024-04-24 11:47:27 +02:00

68 KiB