Rename POI gridrank to rank

layers/poi/layer.sql

@@ -1,13 +1,13 @@
 CREATE OR REPLACE FUNCTION layer_poi(bbox geometry, zoom_level integer, pixel_width numeric)
-RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class text, subclass text, gridrank int) AS $$
+RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class text, subclass text, "rank" int) AS $$
     SELECT osm_id, geometry, name, NULLIF(name_en, ''), poi_class(subclass) AS class, subclass,
         row_number() OVER (
             PARTITION BY LabelGrid(geometry, 100 * pixel_width)
             ORDER BY poi_class_rank(poi_class(subclass)) ASC, length(name) DESC
-        )::int AS gridrank
+        )::int AS "rank"
     FROM osm_poi_point
     WHERE geometry && bbox
       AND zoom_level >= 14
       AND name <> ''
-    ORDER BY gridrank;
+    ORDER BY "rank";
 $$ LANGUAGE SQL IMMUTABLE;