Merge branch 'master' into quickstart_v2

README.md

@@ -83,8 +83,8 @@ tileset:
 
 To work on OpenMapTiles you need Docker and Python.
 
-- Install [Docker](https://docs.docker.com/engine/installation/)
-- Install [Docker Compose](https://docs.docker.com/compose/install/)
+- Install [Docker](https://docs.docker.com/engine/installation/). Minimum version is 1.10.0+.
+- Install [Docker Compose](https://docs.docker.com/compose/install/). Minimum version is 1.6.0+.
 - Install [OpenMapTiles tools](https://github.com/openmaptiles/openmaptiles-tools) with `pip install openmaptiles-tools`
 
 ### Build

docker-compose.yml

@@ -1,11 +1,9 @@
 version: "2"
-volumes:
-  pgdata:
 services:
   postgres:
     image: "openmaptiles/postgis:2.2"
     volumes:
-     - pgdata:/var/lib/postgresql/data
+     - ./pgdata:/var/lib/postgresql/data
     ports:
      - "5432"
     env_file: .env

layers/building/building.sql

@@ -5,17 +5,18 @@
 -- etldoc:     label="layer_building | <z13> z13 | <z14_> z14_ " ] ;
 
 CREATE OR REPLACE FUNCTION layer_building(bbox geometry, zoom_level int)
-RETURNS TABLE(geom geometry, osm_id bigint, render_height numeric) AS $$
+RETURNS TABLE(geom geometry, osm_id bigint, render_height int, render_min_height int) AS $$
     SELECT geometry, osm_id,
-    least(greatest(3, COALESCE(height, levels*3.66,5)),400)^.7::int AS render_height
+    greatest(5, COALESCE(height, levels*3.66,5))::int AS render_height,
+    greatest(0, COALESCE(min_height, min_level*3.66,0))::int AS render_min_height
     FROM (
 
         -- etldoc: osm_building_polygon_gen1 -> layer_building:z13
-        SELECT osm_id, geometry, height, levels FROM osm_building_polygon_gen1
+        SELECT osm_id, geometry, height, levels, min_height, min_level FROM osm_building_polygon_gen1
         WHERE zoom_level = 13 AND geometry && bbox AND area > 1400
         UNION ALL
         -- etldoc: osm_building_polygon -> layer_building:z14_
-        SELECT osm_id, geometry, height, levels FROM osm_building_polygon
+        SELECT osm_id, geometry, height, levels, min_height, min_level FROM osm_building_polygon
         WHERE zoom_level >= 14 AND geometry && bbox
     ) AS zoom_levels
     ORDER BY render_height ASC, ST_YMin(geometry) DESC;

layers/building/building.yaml

@@ -5,10 +5,12 @@ layer:
       this is welcomed.
   buffer_size: 4
   datasource:
-    query: (SELECT geom FROM layer_building(!bbox!, z(!scale_denominator!))) AS t
+    query: (SELECT geom, render_height, render_min_height FROM layer_building(!bbox!, z(!scale_denominator!))) AS t
   fields:
     render_height: |
-        An approximated height from levels and height of building after the method of Paul Norman in [OSM Clear](https://github.com/ClearTables/osm-clear). For future 3D rendering of buildings.
+        An approximated height from levels and height of the building or building:part after the method of Paul Norman in [OSM Clear](https://github.com/ClearTables/osm-clear). For future 3D rendering of buildings.
+    render_min_height: |
+        An approximated height from levels and height of the bottom of the building or building:part after the method of Paul Norman in [OSM Clear](https://github.com/ClearTables/osm-clear). For future 3D rendering of buildings.
 schema:
   - ./building.sql
 datasources:

layers/building/mapping.yaml

@@ -20,10 +20,18 @@ tables:
     - name: height
       key: height
       type: integer
+    - name: min_height
+      key: min_height
+      type: integer
     - name: levels
-      key: levels
+      key: building:levels
+      type: integer
+    - name: min_level
+      key: building:min_level
       type: integer
     mapping:
+      building:part:
+      - __any__
       building:
       - __any__
     type: polygon

layers/highway/highway.sql

@@ -78,7 +78,7 @@ RETURNS TABLE(osm_id bigint, geometry geometry, class highway_class, subclass te
 		SELECT osm_id, geometry, highway, FALSE AS is_bridge, FALSE AS is_tunnel, FALSE AS is_ford, FALSE AS is_ramp, FALSE AS is_oneway, z_order
         FROM osm_highway_polygon
         -- We do not want underground pedestrian areas for now
-		WHERE zoom_level BETWEEN 13 AND 14 AND is_area AND COALESCE(layer, 0) >= 0
+		WHERE zoom_level >= 13 AND is_area AND COALESCE(layer, 0) >= 0
     ) AS zoom_levels
     WHERE geometry && bbox
     ORDER BY z_order ASC;

layers/landcover/landcover.sql

@@ -22,23 +22,23 @@ $$ LANGUAGE SQL IMMUTABLE;
 
 -- etldoc: ne_110m_glaciated_areas ->  landcover_z0 
 CREATE OR REPLACE VIEW landcover_z0 AS (
-    SELECT NULL::int AS osm_id, geom AS geometry, NULL AS landuse, 'glacier' AS "natural", NULL::text AS wetland FROM ne_110m_glaciated_areas
+    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'glacier'::text AS "natural", NULL::text AS wetland FROM ne_110m_glaciated_areas
 );
 
 CREATE OR REPLACE VIEW landcover_z2 AS (
     -- etldoc: ne_50m_glaciated_areas ->  landcover_z2 
-    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'glacier' AS "natural", NULL::text AS wetland FROM ne_50m_glaciated_areas
+    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'glacier'::text AS "natural", NULL::text AS wetland FROM ne_50m_glaciated_areas
     UNION ALL
     -- etldoc: ne_50m_antarctic_ice_shelves_polys ->  landcover_z2     
-    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'ice_shelf' AS "natural", NULL::text AS wetland FROM ne_50m_antarctic_ice_shelves_polys
+    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'ice_shelf'::text AS "natural", NULL::text AS wetland FROM ne_50m_antarctic_ice_shelves_polys
 );
 
 CREATE OR REPLACE VIEW landcover_z5 AS (
     -- etldoc: ne_10m_glaciated_areas ->  landcover_z5
-    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'glacier' AS "natural", NULL::text AS wetland FROM ne_10m_glaciated_areas
+    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'glacier'::text AS "natural", NULL::text AS wetland FROM ne_10m_glaciated_areas
     UNION ALL
     -- etldoc: ne_10m_antarctic_ice_shelves_polys ->  landcover_z5 
-    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'ice_shelf' AS "natural", NULL::text AS wetland FROM ne_10m_antarctic_ice_shelves_polys
+    SELECT NULL::bigint AS osm_id, geom AS geometry, NULL::text AS landuse, 'ice_shelf'::text AS "natural", NULL::text AS wetland FROM ne_10m_antarctic_ice_shelves_polys
 );
 
 CREATE OR REPLACE VIEW landcover_z8 AS (

layers/landuse/landuse.sql

@@ -10,20 +10,20 @@ $$ LANGUAGE SQL IMMUTABLE;
 
 -- etldoc: ne_50m_urban_areas -> landuse_z4
 CREATE OR REPLACE VIEW landuse_z4 AS (
-    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential' AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
+    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential'::text AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
     FROM ne_50m_urban_areas
     WHERE scalerank <= 2
 );
 
 -- etldoc: ne_50m_urban_areas -> landuse_z5
 CREATE OR REPLACE VIEW landuse_z5 AS (
-    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential' AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
+    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential'::text AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
     FROM ne_50m_urban_areas
 );
 
 -- etldoc: ne_10m_urban_areas -> landuse_z6
 CREATE OR REPLACE VIEW landuse_z6 AS (
-    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential' AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
+    SELECT NULL::bigint AS osm_id, geom AS geometry, 'residential'::text AS landuse, NULL::text AS amenity, NULL::text AS leisure, NULL::text AS boundary, scalerank
     FROM ne_10m_urban_areas
 );
 

layers/poi/layer.sql

@@ -1,5 +1,5 @@
 
--- etldoc: layer_poi[shape=record fillcolor=lightpink, style="rounded,filled",  
+-- etldoc: layer_poi[shape=record fillcolor=lightpink, style="rounded,filled",
 -- etldoc:     label="layer_poi | <z14_> z14_" ] ;
 
 CREATE OR REPLACE FUNCTION layer_poi(bbox geometry, zoom_level integer, pixel_width numeric)
@@ -7,12 +7,20 @@ RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class t
     SELECT osm_id, geometry, name, NULLIF(name_en, ''), poi_class(subclass) AS class, subclass,
         row_number() OVER (
             PARTITION BY LabelGrid(geometry, 100 * pixel_width)
-            ORDER BY poi_class_rank(poi_class(subclass)) ASC, length(name) DESC
+            ORDER BY poi_class_rank(poi_class(subclass)) ASC,
+                     length(name) DESC NULLS LAST
         )::int AS "rank"
-    -- etldoc: osm_poi_point ->  layer_poi:z14_        
-    FROM osm_poi_point
-    WHERE geometry && bbox
-      AND zoom_level >= 14
-      AND name <> ''
-    ORDER BY "rank";
+    FROM (
+        -- etldoc: osm_poi_point ->  layer_poi:z14
+        SELECT * FROM osm_poi_point
+            WHERE geometry && bbox
+                AND zoom_level >= 14
+        UNION ALL
+        -- etldoc: osm_poi_polygon ->  layer_poi:z14
+        SELECT * FROM osm_poi_polygon
+            WHERE geometry && bbox
+                AND zoom_level >= 14
+        ) as poi_union
+    ORDER BY "rank"
+    ;
 $$ LANGUAGE SQL IMMUTABLE;

layers/poi/mapping.yaml

@@ -1,3 +1,296 @@
+
+# imposm3 mapping file for https://github.com/osm2vectortiles/imposm3 
+# Warning: this is not the official imposm3  
+
+# aerialway values , see http://taginfo.openstreetmap.org/keys/aerialway#values
+def_poi_mapping_aerialway: &poi_mapping_aerialway
+  - station
+
+# amenity values , see http://taginfo.openstreetmap.org/keys/amenity#values
+def_poi_mapping_amenity: &poi_mapping_amenity
+  - arts_centre
+  - bank
+  - bar
+  - bbq
+  - bicycle_rental
+  - biergarten
+  - bus_station
+  - cafe
+  - cinema
+  - college
+  - community_centre
+  - courthouse
+  - dentist
+  - doctors
+  - embassy
+  - fast_food
+  - ferry_terminal
+  - fire_station
+  - food_court
+  - fuel
+  - grave_yard
+  - hospital
+  - ice_cream
+  - kindergarten
+  - library
+  - marketplace
+  - nightclub
+  - nursing_home
+  - pharmacy
+  - place_of_worship
+  - police
+  - post_box
+  - post_office
+  - prison
+  - pub
+  - public_building
+  - recycling
+  - restaurant
+  - school
+  - shelter
+  - swimming_pool
+  - taxi
+  - telephone
+  - theatre
+  - toilets
+  - townhall
+  - university
+  - veterinary
+  - waste_basket
+
+# barrier values , see http://taginfo.openstreetmap.org/keys/barrier#values
+def_poi_mapping_barrier: &poi_mapping_barrier
+  - bollard
+  - border_control
+  - cycle_barrier
+  - gate
+  - lift_gate
+  - sally_port
+  - stile
+  - toll_booth
+
+# highway values , see http://taginfo.openstreetmap.org/keys/highway#values
+def_poi_mapping_highway: &poi_mapping_highway
+  - bus_stop
+
+# historic values , see http://taginfo.openstreetmap.org/keys/historic#values
+def_poi_mapping_historic: &poi_mapping_historic
+  - monument
+
+# landuse values , see http://taginfo.openstreetmap.org/keys/landuse#values
+def_poi_mapping_landuse: &poi_mapping_landuse
+  - basin
+  - brownfield
+  - cemetery
+  - reservoir
+
+# leisure values , see http://taginfo.openstreetmap.org/keys/leisure#values
+def_poi_mapping_leisure: &poi_mapping_leisure
+  - dog_park
+  - garden
+  - golf_course
+  - ice_rink
+  - marina
+  - miniature_golf
+  - park
+  - pitch
+  - playground
+  - sports_centre
+  - stadium
+  - swimming_area
+  - swimming_pool
+  - water_park
+
+# shop values , see http://taginfo.openstreetmap.org/keys/shop#values
+def_poi_mapping_shop: &poi_mapping_shop
+  - accessories
+  - alcohol
+  - antiques
+  - art
+  - bag
+  - bakery
+  - beauty
+  - bed
+  - beverages
+  - bicycle
+  - books
+  - boutique
+  - butcher
+  - camera
+  - car
+  - car_repair
+  - carpet
+  - charity
+  - chemist
+  - chocolate
+  - clothes
+  - coffee
+  - computer
+  - confectionery
+  - convenience
+  - copyshop
+  - cosmetics
+  - deli
+  - delicatessen
+  - department_store
+  - doityourself
+  - dry_cleaning
+  - electronics
+  - erotic
+  - fabric
+  - florist
+  - furniture
+  - garden_centre
+  - general
+  - gift
+  - greengrocer
+  - hairdresser
+  - hardware
+  - hearing_aids
+  - hifi
+  - ice_cream
+  - interior_decoration
+  - jewelry
+  - kiosk
+  - lamps
+  - laundry
+  - mall
+  - massage
+  - mobile_phone
+  - motorcycle
+  - music
+  - musical_instrument
+  - newsagent
+  - optician
+  - outdoor
+  - perfume
+  - perfumery
+  - pet
+  - photo
+  - second_hand
+  - shoes
+  - sports
+  - stationery
+  - supermarket
+  - tailor
+  - tattoo
+  - ticket
+  - tobacco
+  - toys
+  - travel_agency
+  - video
+  - video_games
+  - watches
+  - weapons
+  - wholesale
+  - wine
+
+# sport values , see http://taginfo.openstreetmap.org/keys/sport#values
+def_poi_mapping_sport: &poi_mapping_sport
+  - american_football
+  - archery
+  - athletics
+  - australian_football
+  - badminton
+  - baseball
+  - basketball
+  - beachvolleyball
+  - billiards
+  - bmx
+  - boules
+  - bowls
+  - boxing
+  - canadian_football
+  - canoe
+  - chess
+  - climbing
+  - climbing_adventure
+  - cricket
+  - cricket_nets
+  - croquet
+  - curling
+  - cycling
+  - disc_golf
+  - diving
+  - dog_racing
+  - equestrian
+  - fatsal
+  - field_hockey
+  - free_flying
+  - gaelic_games
+  - golf
+  - gymnastics
+  - handball
+  - hockey
+  - horse_racing
+  - horseshoes
+  - ice_hockey
+  - ice_stock
+  - judo
+  - karting
+  - korfball
+  - long_jump
+  - model_aerodrome
+  - motocross
+  - motor
+  - multi
+  - netball
+  - orienteering
+  - paddle_tennis
+  - paintball
+  - paragliding
+  - pelota
+  - racquet
+  - rc_car
+  - rowing
+  - rugby
+  - rugby_league
+  - rugby_union
+  - running
+  - sailing
+  - scuba_diving
+  - shooting
+  - shooting_range
+  - skateboard
+  - skating
+  - skiing
+  - soccer
+  - surfing
+  - swimming
+  - table_soccer
+  - table_tennis
+  - team_handball
+  - tennis
+  - toboggan
+  - volleyball
+  - water_ski
+  - yoga
+
+# tourism values , see http://taginfo.openstreetmap.org/keys/tourism#values
+def_poi_mapping_tourism: &poi_mapping_tourism
+  - alpine_hut
+  - artwork
+  - attraction
+  - bed_and_breakfast
+  - camp_site
+  - caravan_site
+  - chalet
+  - gallery
+  - guest_house
+  - hostel
+  - hotel
+  - information
+  - motel
+  - museum
+  - picnic_site
+  - theme_park
+  - viewpoint
+  - zoo
+
+# waterway values , see http://taginfo.openstreetmap.org/keys/waterway#values
+def_poi_mapping_waterway: &poi_mapping_waterway
+  - dock
+
 tables:
   # etldoc: imposm3 -> osm_poi_point
   poi_point:
@@ -16,269 +309,44 @@ tables:
     - name: subclass
       type: mapping_value
     mapping:
-      amenity:
-      - arts_centre
-      - police
-      - fire_station
-      - post_box
-      - post_office
-      - telephone
-      - library
-      - townhall
-      - courthouse
-      - prison
-      - place_of_worship
-      - embassy
-      - community_centre
-      - nursing_home
-      - university
-      - school
-      - kindergarten
-      - college
-      - public_building
-      - pharmacy
-      - hospital
-      - doctors
-      - dentist
-      - veterinary
-      - theatre
-      - nightclub
-      - cinema
-      - restaurant
-      - recycling
-      - fast_food
-      - cafe
-      - pub
-      - bar
-      - food_court
-      - biergarten
-      - swimming_pool
-      - shelter
-      - grave_yard
-      - bank
-      - ferry_terminal
-      - fuel
-      - waste_basket
-      - bicycle_rental
-      - bbq
-      - taxi
-      - bus_station
-      - marketplace
-      - toilets
-      leisure:
-      - park
-      - playground
-      - dog_park
-      - sports_centre
-      - pitch
-      - swimming_pool
-      - swimming_area
-      - water_park
-      - golf_course
-      - miniature_golf
-      - marina
-      - stadium
-      - ice_rink
-      - garden
-      landuse:
-      - cemetery
-      - basin
-      - reservoir
-      - brownfield
-      sport:
-      - swimming
-      - tennis
-      - soccer
-      - baseball
-      - basketball
-      - multi
-      - golf
-      - equestrian
-      - athletics
-      - volleyball
-      - climbing
-      - bowls
-      - american_football
-      - skateboard
-      - shooting
-      - skiing
-      - boules
-      - beachvolleyball
-      - cricket
-      - table_tennis
-      - hockey
-      - gymnastics
-      - running
-      - canoe
-      - rugby_union
-      - skating
-      - scuba_diving
-      - motor
-      - horse_racing
-      - handball
-      - team_handball
-      - karting
-      - cycling
-      - archery
-      - motocross
-      - pelota
-      - rugby
-      - gaelic_games
-      - model_aerodrome
-      - netball
-      - rugby_league
-      - free_flying
-      - rowing
-      - chess
-      - australian_football
-      - cricket_nets
-      - racquet
-      - bmx
-      - sailing
-      - ice_stock
-      - badminton
-      - paddle_tennis
-      - dog_racing
-      - fatsal
-      - billiards
-      - ice_hockey
-      - yoga
-      - disc_golf
-      - orienteering
-      - toboggan
-      - horseshoes
-      - paragliding
-      - korfball
-      - diving
-      - rc_car
-      - canadian_football
-      - field_hockey
-      - shooting_range
-      - boxing
-      - curling
-      - surfing
-      - water_ski
-      - judo
-      - croquet
-      - paintball
-      - climbing_adventure
-      - long_jump
-      - table_soccer
-      tourism:
-      - attraction
-      - artwork
-      - gallery
-      - hotel
-      - motel
-      - bed_and_breakfast
-      - guest_house
-      - hostel
-      - chalet
-      - camp_site
-      - alpine_hut
-      - caravan_site
-      - museum
-      - viewpoint
-      - zoo
-      - theme_park
-      - information
-      - picnic_site
-      shop:
-      - accessories
-      - alcohol
-      - antiques
-      - art
-      - bag
-      - bakery
-      - beauty
-      - bed
-      - beverages
-      - bicycle
-      - books
-      - boutique
-      - butcher
-      - camera
-      - car
-      - car_repair
-      - carpet
-      - charity
-      - chemist
-      - chocolate
-      - clothes
-      - coffee
-      - computer
-      - confectionery
-      - convenience
-      - copyshop
-      - cosmetics
-      - garden_centre
-      - deli
-      - delicatessen
-      - department_store
-      - doityourself
-      - dry_cleaning
-      - video
-      - electronics
-      - erotic
-      - fabric
-      - florist
-      - furniture
-      - video_games
-      - general
-      - gift
-      - greengrocer
-      - hairdresser
-      - hardware
-      - hearing_aids
-      - hifi
-      - ice_cream
-      - interior_decoration
-      - jewelry
-      - kiosk
-      - lamps
-      - laundry
-      - mall
-      - massage
-      - mobile_phone
-      - motorcycle
-      - music
-      - musical_instrument
-      - newsagent
-      - optician
-      - outdoor
-      - perfumery
-      - perfume
-      - pet
-      - photo
-      - second_hand
-      - shoes
-      - sports
-      - stationery
-      - supermarket
-      - tailor
-      - tattoo
-      - ticket
-      - tobacco
-      - toys
-      - travel_agency
-      - watches
-      - weapons
-      - wholesale
-      - wine
-      highway:
-      - bus_stop
-      barrier:
-      - sally_port
-      - lift_gate
-      - gate
-      - bollard
-      - stile
-      - cycle_barrier
-      - toll_booth
-      - border_control
-      historic:
-      - monument
-      waterway:
-      - dock
-      aerialway:
-      - station
+      aerialway: *poi_mapping_aerialway
+      amenity: *poi_mapping_amenity
+      barrier: *poi_mapping_barrier
+      highway: *poi_mapping_highway
+      historic: *poi_mapping_historic
+      landuse: *poi_mapping_landuse
+      leisure: *poi_mapping_leisure
+      shop: *poi_mapping_shop
+      sport: *poi_mapping_sport
+      tourism: *poi_mapping_tourism
+      waterway: *poi_mapping_waterway
+
+
+  # etldoc: imposm3 -> osm_poi_polygon
+  poi_polygon:
+    type: polygon
+    fields:
+    - name: osm_id
+      type: id
+    - name: geometry
+      type: geometry
+    - name: name
+      key: name
+      type: string
+    - name: name_en
+      key: name:en
+      type: string
+    - name: subclass
+      type: mapping_value
+    mapping:
+      aerialway: *poi_mapping_aerialway
+      amenity: *poi_mapping_amenity
+      barrier: *poi_mapping_barrier
+      highway: *poi_mapping_highway
+      historic: *poi_mapping_historic
+      landuse: *poi_mapping_landuse
+      leisure: *poi_mapping_leisure
+      shop: *poi_mapping_shop
+      sport: *poi_mapping_sport
+      tourism: *poi_mapping_tourism
+      waterway: *poi_mapping_waterway

layers/poi/poi.yaml

@@ -32,6 +32,7 @@ layer:
     srid: 900913
     query: (SELECT geometry, name, name_en, class, subclass, rank FROM layer_poi(!bbox!, z(!scale_denominator!), !pixel_width!)) AS t
 schema:
+  - ./poi_polygon_update.sql 
   - ./class.sql
   - ./layer.sql
 datasources:

layers/poi/poi_polygon_update.sql

@@ -0,0 +1,5 @@
+-- etldoc:  osm_poi_polygon ->  osm_poi_polygon
+UPDATE osm_poi_polygon  SET geometry=topoint(geometry)
+WHERE ST_GeometryType(geometry) <> 'ST_Point';
+
+ANALYZE osm_poi_polygon;

layers/water/water.sql

@@ -6,55 +6,55 @@ $$ LANGUAGE SQL IMMUTABLE;
 
 CREATE OR REPLACE VIEW water_z0 AS (
     -- etldoc:  ne_110m_ocean ->  water_z0 
-    SELECT geom, 'ocean' AS class FROM ne_110m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_110m_ocean
     UNION ALL
     -- etldoc:  ne_110m_lakes ->  water_z0     
-    SELECT geom, 'lake' AS class FROM ne_110m_lakes
+    SELECT geom, 'lake'::text AS class FROM ne_110m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z1 AS (
     -- etldoc:  ne_110m_ocean ->  water_z1    
-    SELECT geom, 'ocean' AS class FROM ne_110m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_110m_ocean
     UNION ALL   
     -- etldoc:  ne_110m_lakes ->  water_z1    
-    SELECT geom, 'lake' AS class FROM ne_110m_lakes
+    SELECT geom, 'lake'::text AS class FROM ne_110m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z2 AS (
     -- etldoc:  ne_50m_ocean ->  water_z2    
-    SELECT geom, 'ocean' AS class FROM ne_50m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_50m_ocean
     UNION ALL
-    -- etldoc:  ne_110m_lakes ->  water_z2     
-    SELECT geom, 'lake' AS class FROM ne_110m_lakes
+    -- etldoc:  ne_50m_lakes ->  water_z2     
+    SELECT geom, 'lake'::text AS class FROM ne_50m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z4 AS (
     -- etldoc:  ne_50m_ocean ->  water_z4       
-    SELECT geom, 'ocean' AS class FROM ne_50m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_50m_ocean
     UNION ALL
     -- etldoc:  ne_50m_lakes ->  water_z4     
-    SELECT geom, 'lake' AS class FROM ne_50m_lakes
+    SELECT geom, 'lake'::text AS class FROM ne_50m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z5 AS (
     -- etldoc:  ne_10m_ocean ->  water_z5    
-    SELECT geom, 'ocean' AS class FROM ne_10m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_10m_ocean
     UNION ALL
     -- etldoc:  ne_10m_lakes ->  water_z5    
-    SELECT geom, 'lake' AS class FROM ne_10m_lakes
+    SELECT geom, 'lake'::text AS class FROM ne_10m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z6 AS (
     -- etldoc:  ne_10m_ocean ->  water_z6     
-    SELECT geom, 'ocean' AS class FROM ne_10m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_10m_ocean
     UNION ALL
    -- etldoc:  ne_10m_lakes ->  water_z6    
-    SELECT geom, 'lake' AS class FROM ne_10m_lakes
+    SELECT geom, 'lake'::text AS class FROM ne_10m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z7 AS (
     -- etldoc:  ne_10m_ocean ->  water_z7     
-    SELECT geom, 'ocean' AS class FROM ne_10m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_10m_ocean
     UNION ALL
     -- etldoc:  osm_water_polygon_gen3 ->  water_z7     
     SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen3
@@ -62,7 +62,7 @@ CREATE OR REPLACE VIEW water_z7 AS (
 
 CREATE OR REPLACE VIEW water_z8 AS (
     -- etldoc:  ne_10m_ocean ->  water_z8     
-    SELECT geom, 'ocean' AS class FROM ne_10m_ocean
+    SELECT geom, 'ocean'::text AS class FROM ne_10m_ocean
     UNION ALL
     -- etldoc:  osm_water_polygon_gen2 ->  water_z8         
     SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen2

layers/waterway/waterway.sql

@@ -1,19 +1,19 @@
 
 -- etldoc: ne_110m_rivers_lake_centerlines ->  waterway_z3
 CREATE OR REPLACE VIEW waterway_z3 AS (
-    SELECT geom AS geometry, 'river' AS class FROM ne_110m_rivers_lake_centerlines
+    SELECT geom AS geometry, 'river'::text AS class FROM ne_110m_rivers_lake_centerlines
     WHERE featurecla = 'River'
 );
 
 -- etldoc: ne_50m_rivers_lake_centerlines ->  waterway_z4
 CREATE OR REPLACE VIEW waterway_z4 AS (
-    SELECT geom AS geometry, 'river' AS class FROM ne_50m_rivers_lake_centerlines
+    SELECT geom AS geometry, 'river'::text AS class FROM ne_50m_rivers_lake_centerlines
     WHERE featurecla = 'River'
 );
 
 -- etldoc: ne_10m_rivers_lake_centerlines ->  waterway_z6
 CREATE OR REPLACE VIEW waterway_z6 AS (
-    SELECT geom AS geometry, 'river' AS class FROM ne_10m_rivers_lake_centerlines
+    SELECT geom AS geometry, 'river'::text AS class FROM ne_10m_rivers_lake_centerlines
     WHERE featurecla = 'River'
 );