solves #50

geocoder/postal-codes/sql/build_zipcode_points_table.sql

@@ -0,0 +1,26 @@
+
+---- Postal Code Points table ---
+
+-- Clear table
+
+DELETE FROM zipcode_points;
+
+-- Insert points
+
+DELETE FROM zipcode_points;
+
+INSERT INTO zip_code_points (the_geom, zipcode, iso3) 
+SELECT the_geom, zipcode,
+		(
+		SELECT country_decoder.iso3 FROM country_decoder 
+		WHERE tmp_zipcode_points.iso2 = country_decoder.iso2
+		)
+FROM tmp_zipcode_points
+);
+
+
+-- Drops temporary table
+
+DROP TABLE tmp_zipcode_points;
+
+