Show urban earlier

data.yml

@@ -215,6 +215,9 @@ Layer:
       table: |-
         ( SELECT geom, scalerank
           FROM (
+              SELECT * FROM urban_z4
+              WHERE z(!scale_denominator!) = 4
+              UNION ALL
               SELECT * FROM urban_z5
               WHERE z(!scale_denominator!) = 5
               UNION ALL

schema/layers/urban.sql

@@ -1,3 +1,9 @@
+CREATE OR REPLACE VIEW urban_z4 AS (
+    SELECT geom, scalerank
+    FROM ne_50m_urban_areas
+    WHERE scalerank <= 2
+);
+
 CREATE OR REPLACE VIEW urban_z5 AS (
     SELECT geom, scalerank
     FROM ne_50m_urban_areas