maptiles/layers/outdoor_poi/outdoor_poi.yaml

layer:
  id: "outdoor_poi"
  description: Outdoor POI missing from OMT
  buffer_size: 4
  srs: +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over
  fields:
    class:
    subclass:
    name:
  datasource:
    key_field: osm_id
    key_field_as_attribute: no
    geometry_field: geometry
    srid: 900913
    query: (SELECT osm_id, geometry, class, subclass, name FROM layer_outdoor_poi(!bbox!, z(!scale_denominator!))) AS t
schema:
  - ./layer.sql
datasources:
  - type: imposm3
    mapping_file: ./mapping.yaml