adding old admin1 geocoder sql to start edit

geocoder/admin1/sql/geocoder.sql

@@ -0,0 +1,41 @@
+CREATE OR REPLACE FUNCTION geocode_admin1_polygons(names text[], country text[])
+  RETURNS SETOF geocode_admin_country_v1 AS $$
+  DECLARE 
+    ret geocode_admin_country_v1%rowtype;
+    nans TEXT[];
+  BEGIN
+
+
+  SELECT array_agg(p) INTO nans FROM (SELECT unnest(names) p, unnest(country) c) g WHERE c IS NULL;
+
+  IF 0 < array_length(nans, 1) THEN
+    SELECT array_agg(p), array_agg(c) INTO names, country FROM (SELECT unnest(names) p, unnest(country) c) g WHERE c IS NOT NULL;
+    FOR ret IN SELECT g.q, NULL as c, g.geom, g.success FROM (SELECT (geocode_admin1_polygons(nans)).*) g LOOP
+      RETURN NEXT ret;
+    END LOOP;
+  END IF;
+
+
+  FOR ret IN WITH 
+    p AS (SELECT r.p, r.q, c, (SELECT iso3 FROM country_decoder WHERE lower(r.c) = ANY (synonyms)) i FROM (SELECT  trim(replace(lower(unnest(names)),'.',' ')) p, unnest(names) q, unnest(country) c) r)
+    SELECT
+       q, c, geom, CASE WHEN geom IS NULL THEN FALSE ELSE TRUE END AS success
+    FROM (
+      SELECT 
+        q, c, (
+          SELECT the_geom 
+          FROM global_province_polygons
+          WHERE p.p = ANY (synonyms) 
+          AND iso3 = p.i
+          -- To calculate frequency, I simply counted the number of users
+          -- we had signed up in each country. Countries with more users, 
+          -- we favor higher in the geocoder :)
+          ORDER BY frequency DESC LIMIT 1
+        ) geom
+      FROM p) n
+    LOOP
+    RETURN NEXT ret;
+  END LOOP;
+  RETURN;
+END
+$$ LANGUAGE 'plpgsql' SECURITY DEFINER;