feat(db): add taxi stations to update-db.sh

db/sql/scripts/taxi.sql

@@ -0,0 +1,37 @@
+-- colon before variable: for a prepared statement using named placeholders, this will be a parameter name of the form :name
+CREATE SCHEMA IF NOT EXISTS :schema;
+SET search_path to :schema, public;
+
+DROP TABLE IF EXISTS :schema.tbl_taxi;
+DROP VIEW IF EXISTS :schema.vw_taxi;
+
+CREATE OR REPLACE VIEW :schema.vw_taxi AS 
+SELECT entity.osm_id, entity.amenity, entity.name, entity.st_x, entity.st_y
+FROM (
+--planet_osm_point/node
+SELECT osmNode.osm_id, osmNode.amenity, osmNode.name,
+st_x(st_transform(osmNode.way, 4326)) AS st_x,
+st_y(st_transform(osmNode.way, 4326)) AS st_y
+FROM planet_osm_point AS osmNode
+WHERE
+	osmNode.amenity = 'taxi'
+	AND osmNode.proposed IS NULL
+UNION
+--planet_osm_polygone/way
+SELECT osmWay.osm_id, osmWay.amenity, osmWay.name,
+st_x(st_centroid(st_transform(osmWay.way, 4326))) AS st_x,
+st_y(st_centroid(st_transform(osmWay.way, 4326))) AS st_y
+FROM planet_osm_polygon AS osmWay
+WHERE
+	osmWay.amenity = 'taxi'
+	AND osmWay.proposed IS NULL
+) AS entity
+--consider coordinates inside rvb only
+LEFT JOIN vw_counties vwc ON st_contains(vwc.way, st_transform(st_geomfromtext('POINT(' || entity.st_x  || ' ' || entity.st_y ||')',4326),3857))
+--consider coordinates inside rvb only
+LEFT JOIN vw_municipalities vwm ON st_contains(vwm.way, st_transform(st_geomfromtext('POINT(' || entity.st_x  || ' ' || entity.st_y ||')',4326),3857))
+--consider counties of rvb only
+WHERE (vwc.name = ANY (ARRAY['Braunschweig','Salzgitter','Wolfsburg','Gifhorn','Landkreis Goslar','Landkreis Helmstedt','Landkreis Peine','Landkreis Wolfenbüttel']))
+ORDER BY vwc.name, vwm.name, entity.name;
+
+CREATE TABLE IF NOT EXISTS :schema.tbl_taxi AS SELECT * FROM :schema.vw_taxi;