Bad query for area_label

area_label_old.sql

explain(analyze,buffers,verbose)
SELECT ST_AsBinary("way") AS geom,"area","name","type"
FROM (
 SELECT COALESCE(landuse, leisure, "natural", highway, amenity, tourism) AS "type", name, way_area AS area, ST_PointOnSurface(way) AS way
 FROM planet_osm_polygon
 WHERE name IS NOT NULL
   AND way && ST_SetSRID('BOX3D(15573585.89094331 4224215.931154246,15617613.61923559 4268243.659446535)'::box3d, 3857)
   AND ST_IsValid(way)
 UNION ALL
 SELECT 'building' AS "type", name, way_area AS area, ST_PointOnSurface(way) AS way
 FROM planet_osm_polygon
 WHERE name IS NOT NULL
   AND building NOT IN ('', 'no', '0', 'false')
   AND way && ST_SetSRID('BOX3D(15573585.89094331 4224215.931154246,15617613.61923559 4268243.659446535)'::box3d, 3857)
   AND ST_IsValid(way)
 ORDER BY area DESC
) AS data