Add building layer

schema/create_schema.sh

@@ -17,6 +17,7 @@ function exec_psql_file() {
 function main() {
     exec_psql_file "$VT_UTIL_DIR/postgis-vt-util.sql"
     exec_psql_file "layers/water.sql"
+    exec_psql_file "layers/building.sql"
 }
 
 main

schema/layers/building.sql

@@ -0,0 +1,7 @@
+CREATE OR REPLACE VIEW building_z13 AS (
+    SELECT osm_id, way, height, levels FROM buildings WHERE way_area > 1400
+);
+
+CREATE OR REPLACE VIEW building_z14 AS (
+    SELECT osm_id, way, height, levels FROM buildings
+);