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Remove table building_multipolygon as multipolygon are already in table osm_building_polygon (#756)

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Buildings from ways and multipolygons are loaded in table `osm_building_polygon`. But a table for `osm_building_multipolygon` is also loaded, the content is not used except to ensure an `osm_id` is from a multipolygon. To check if the object is from a multipolygon we have only to check if `osm_id` is negative. It is the counter part of e0c8ece375/layers/building/building.sql (L89)

I checked the objects are the same after this change.
This commit is contained in:
Frédéric Rodrigo
2020-02-01 01:34:08 +01:00
committed by GitHub
parent 6801353e15
commit b1eeff573e
4 changed files with 5 additions and 76 deletions
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8
layers/building/building.sql
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@@ -60,8 +60,8 @@ CREATE OR REPLACE VIEW osm_all_buildings AS (
osm_building_street WHERE role = 'house' AND ST_GeometryType(geometry) = 'ST_Polygon'
UNION ALL
-- etldoc: osm_building_multipolygon -> layer_building:z14_
-- Buildings that are inner/outer
-- etldoc: osm_building_polygon -> layer_building:z14_
-- Buildings that are from multipolygons
SELECT osm_id,geometry,
COALESCE(nullif(as_numeric(height),-1),nullif(as_numeric(buildingheight),-1)) as height,
COALESCE(nullif(as_numeric(min_height),-1),nullif(as_numeric(buildingmin_height),-1)) as min_height,
@@ -71,7 +71,9 @@ CREATE OR REPLACE VIEW osm_all_buildings AS (
nullif(colour, '') AS colour,
FALSE as hide_3d
FROM
osm_building_polygon obp WHERE EXISTS (SELECT 1 FROM osm_building_multipolygon obm WHERE obp.osm_id = obm.osm_id)
osm_building_polygon obp
WHERE osm_id < 0
UNION ALL
-- etldoc: osm_building_polygon -> layer_building:z14_
-- Standalone buildings