Add recommended indexes for Carto style (thanks @souladm)

Dockerfile

@@ -140,6 +140,7 @@ RUN chown -R postgres:postgres /var/lib/postgresql \
 
 # Start running
 COPY run.sh /
+COPY indexes.sql /
 ENTRYPOINT ["/run.sh"]
 CMD []
 

indexes.sql

@@ -0,0 +1,48 @@
+-- Extracted from https://github.com/gravitystorm/openstreetmap-carto
+-- Comes with a CC0 license
+
+-- These are optional but suggested indexes for rendering OpenStreetMap Carto
+-- with a full planet database.
+-- This file is generated with scripts/indexes.py
+
+CREATE INDEX planet_osm_roads_admin
+  ON planet_osm_roads USING GIST (way)
+  WHERE boundary = 'administrative';
+CREATE INDEX planet_osm_roads_roads_ref
+  ON planet_osm_roads USING GIST (way)
+  WHERE highway IS NOT NULL AND ref IS NOT NULL;
+CREATE INDEX planet_osm_roads_admin_low
+  ON planet_osm_roads USING GIST (way)
+  WHERE boundary = 'administrative' AND admin_level IN ('0', '1', '2', '3', '4');
+CREATE INDEX planet_osm_line_ferry
+  ON planet_osm_line USING GIST (way)
+  WHERE route = 'ferry';
+CREATE INDEX planet_osm_line_river
+  ON planet_osm_line USING GIST (way)
+  WHERE waterway = 'river';
+CREATE INDEX planet_osm_line_name
+  ON planet_osm_line USING GIST (way)
+  WHERE name IS NOT NULL;
+CREATE INDEX planet_osm_polygon_water
+  ON planet_osm_polygon USING GIST (way)
+  WHERE waterway IN ('dock', 'riverbank', 'canal')
+    OR landuse IN ('reservoir', 'basin')
+    OR "natural" IN ('water', 'glacier');
+CREATE INDEX planet_osm_polygon_nobuilding
+  ON planet_osm_polygon USING GIST (way)
+  WHERE building IS NULL;
+CREATE INDEX planet_osm_polygon_name
+  ON planet_osm_polygon USING GIST (way)
+  WHERE name IS NOT NULL;
+CREATE INDEX planet_osm_polygon_way_area_z10
+  ON planet_osm_polygon USING GIST (way)
+  WHERE way_area > 23300;
+CREATE INDEX planet_osm_polygon_military
+  ON planet_osm_polygon USING GIST (way)
+  WHERE (landuse = 'military' OR military = 'danger_area') AND building IS NULL;
+CREATE INDEX planet_osm_polygon_way_area_z6
+  ON planet_osm_polygon USING GIST (way)
+  WHERE way_area > 5980000;
+CREATE INDEX planet_osm_point_place
+  ON planet_osm_point USING GIST (way)
+  WHERE place IS NOT NULL AND name IS NOT NULL;

run.sh

@@ -38,6 +38,10 @@ if [ "$1" = "import" ]; then
 
     # Import data
     sudo -u renderer osm2pgsql -d gis --create --slim -G --hstore --tag-transform-script /home/renderer/src/openstreetmap-carto/openstreetmap-carto.lua -C 2048 --number-processes ${THREADS:-4} -S /home/renderer/src/openstreetmap-carto/openstreetmap-carto.style /data.osm.pbf
+
+    # Create indexes
+    sudo -u postgres psql -d gis -f indexes.sql
+
     service postgresql stop
 
     exit 0