removed single array method of the admin1 polygon geocoder

geocoder/admin1/sql/geocoder.sql

@@ -1,64 +1,5 @@
 --- Usage
 
---SELECT (geocode_admin1_polygons(Array['TX','Cuidad Real', 'sevilla'])).*
-
---- Function
-
-CREATE OR REPLACE FUNCTION test_geocode_admin1_polygons(name text[])
-  RETURNS SETOF geocode_admin_v1 AS $$
-  DECLARE 
-    ret geocode_admin_v1%rowtype;
-  BEGIN
-  FOR ret IN
-    SELECT
-       q, geom, CASE WHEN geom IS NULL THEN FALSE ELSE TRUE END AS success
-    FROM (
-      SELECT 
-        q, (
-          SELECT the_geom 
-          FROM global_province_polygons
-          WHERE d.c = ANY (synonyms) 
-          -- To calculate frequency, I simply counted the number of users
-          -- we had signed up in each country. Countries with more users, 
-          -- we favor higher in the geocoder :)
-          ORDER BY frequency DESC LIMIT 1
-        ) geom
-      FROM (SELECT trim(replace(lower(unnest(name)),'.',' ')) c, unnest(name) q) d
-    ) v
-  LOOP 
-    RETURN NEXT ret;
-  END LOOP;
-  RETURN;
-END
-$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
-Text array, country name
-
-
--- CREATE OR REPLACE FUNCTION test_geocode_admin1_polygons(name text[])
---   RETURNS SETOF geocode_admin_v1 AS $$
---   DECLARE 
---     ret geocode_admin_v1%rowtype;
---   BEGIN
---   -- FOR ret IN
---   RETURN QUERY
---     SELECT 
---       d.q, n.the_geom as geom, 
---       CASE WHEN s.adm1_code IS NULL then FALSE ELSE TRUE END AS success 
---       FROM (
---         SELECT 
---           q, lower(regexp_replace(q, '[^a-zA-Z\u00C0-\u00ff]+', '', 'g'))::text x 
---         FROM (SELECT unnest(name) q) g
---         ) d 
---       LEFT OUTER JOIN 
---         admin1_synonyms s ON name_ = d.x 
---       LEFT OUTER JOIN 
---         ne_admin1_v3 n ON s.adm1_code = n.adm1_code;
--- END
--- $$ LANGUAGE 'plpgsql' SECURITY DEFINER;
-
-
---- Usage
-
 --- SELECT (geocode_admin1_polygons(Array['az', 'Texas'], 'Ecuador')).*
 
 --- Function

geocoder/setup/indexes.sql

@@ -7,3 +7,5 @@ CREATE INDEX idx_admin0_synonyms_rank ON admin0_synonyms (rank);
 -- create indexes on polygon table
 CREATE UNIQUE INDEX idx_ne_admin0_v3_adm0_a3 ON ne_admin0_v3 (adm0_a3);
 
+-- create indexes on postal code polygon table
+CREATE UNIQUE INDEX idx_postal_code_polygons_a3_code ON postal_code_polygons (adm0_a3, postal_code)