generalized_tables:
  waterway_linestring_gen0:
    source: waterway_linestring_gen1
    sql_filter: waterway IN ('river') AND ST_Length(geometry) > 10000
    tolerance: 200.0
  waterway_linestring_gen1:
    source: waterway_linestring
    sql_filter: waterway IN ('river') AND ST_Length(geometry) > 5000
    tolerance: 100.0
tables:
  waterway_linestring:
    type: linestring
    fields:
    - name: osm_id
      type: id
    - name: geometry
      type: geometry
    - name: waterway
      key: waterway
      type: string
    - key: name
      name: name
      type: string
    - name: name_en
      key: name:en
      type: string
    mapping:
      waterway:
      - stream
      - river
      - canal
      - drain
      - ditch