-CREATE INDEX idx_placex_osmid ON placex USING BTREE (osm_type, osm_id) {{db.tablespace.search_index}};
-CREATE INDEX idx_placex_linked_place_id ON placex USING BTREE (linked_place_id) {{db.tablespace.address_index}} WHERE linked_place_id IS NOT NULL;
-CREATE INDEX idx_placex_rank_search ON placex USING BTREE (rank_search, geometry_sector) {{db.tablespace.address_index}};
-CREATE INDEX idx_placex_geometry ON placex USING GIST (geometry) {{db.tablespace.search_index}};
+{% for osm_type in ('N', 'W', 'R') %}
+CREATE INDEX idx_placex_osmid_{{osm_type | lower}} ON placex
+ USING BTREE (osm_id) {{db.tablespace.search_index}}
+ WHERE osm_type = '{{osm_type}}';
+{% endfor %}
+
+-- Usage: - removing linkage status on update
+-- - lookup linked places for /details
+CREATE INDEX idx_placex_linked_place_id ON placex
+ USING BTREE (linked_place_id) {{db.tablespace.address_index}}
+ WHERE linked_place_id IS NOT NULL;
+
+-- Usage: - check that admin boundaries do not overtake each other rank-wise
+-- - check that place node in a admin boundary with the same address level
+-- - boundary is not completely contained in a place area
+-- - parenting of large-area or unparentable features
+CREATE INDEX idx_placex_geometry_address_area_candidates ON placex
+ USING gist (geometry) {{db.tablespace.address_index}}
+ WHERE rank_address between 1 and 25
+ and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon');
+
+-- Usage: - POI is within building with housenumber
+CREATE INDEX idx_placex_geometry_buildings ON placex
+ USING SPGIST (geometry) {{db.tablespace.address_index}}
+ WHERE address is not null and rank_search = 30
+ and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon');
+
+-- Usage: - linking of similar named places to boundaries
+-- - linking of place nodes with same type to boundaries