generalized_tables:
  # etldoc: imposm3 -> osm_park_polygon_gen8
  park_polygon_gen8:
    source: park_polygon_gen6
    sql_filter: area>240000000
    tolerance: 600.0

  # etldoc: imposm3 -> osm_park_polygon_gen7
  park_polygon_gen7:
    source: park_polygon_gen6
    sql_filter: area>60000000
    tolerance: 400.0

  # etldoc: imposm3 -> osm_park_polygon_gen6
  park_polygon_gen6:
    source: park_polygon_gen5
    sql_filter: area>15000000
    tolerance: 300.0

  # etldoc: imposm3 -> osm_park_polygon_gen5
  park_polygon_gen5:
    source: park_polygon_gen4
    sql_filter: area>4200000
    tolerance: 200.0

  # etldoc: imposm3 -> osm_park_polygon_gen4
  park_polygon_gen4:
    source: park_polygon_gen3
    sql_filter: area>1200000
    tolerance: 120.0

  # etldoc: imposm3 -> osm_park_polygon_gen3
  park_polygon_gen3:
    source: park_polygon_gen2
    sql_filter: area>480000
    tolerance: 80.0

  # etldoc: imposm3 -> osm_park_polygon_gen2
  park_polygon_gen2:
    source: park_polygon_gen1
    sql_filter: area>240000
    tolerance: 50.0

  # etldoc: imposm3 -> osm_park_polygon_gen1
  park_polygon_gen1:
    source: park_polygon
    sql_filter: area>60000
    tolerance: 20.0

tables:

  # etldoc: imposm3 -> osm_park_polygon
  park_polygon:
    type: polygon
    fields:
    - name: osm_id
      type: id
    - name: geometry
      type: validated_geometry
    - name: landuse
      key: landuse
      type: string
    - name: leisure
      key: leisure
      type: string
    - name: boundary
      key: boundary
      type: string
    - name: area
      type: pseudoarea
    mapping:
      leisure:
      - nature_reserve
      boundary:
      - national_park