-
-CREATE OR REPLACE FUNCTION reverse_place_diameter(rank_search SMALLINT)
- RETURNS FLOAT
- AS $$
-BEGIN
- IF rank_search <= 4 THEN
- RETURN 5.0;
- ELSIF rank_search <= 8 THEN
- RETURN 1.8;
- ELSIF rank_search <= 12 THEN
- RETURN 0.6;
- ELSIF rank_search <= 17 THEN
- RETURN 0.16;
- ELSIF rank_search <= 18 THEN
- RETURN 0.08;
- ELSIF rank_search <= 19 THEN
- RETURN 0.04;
- END IF;
-
- RETURN 0.02;
-END;
-$$
-LANGUAGE plpgsql IMMUTABLE;
-
-
-CREATE OR REPLACE FUNCTION get_postcode_rank(country_code VARCHAR(2), postcode TEXT,
- OUT rank_search SMALLINT,
- OUT rank_address SMALLINT)
-AS $$
-DECLARE
- part TEXT;
-BEGIN
- rank_search := 30;
- rank_address := 30;
- postcode := upper(postcode);
-
- IF country_code = 'gb' THEN
- IF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9][A-Z][A-Z])$' THEN
- rank_search := 25;
- rank_address := 5;
- ELSEIF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9])$' THEN
- rank_search := 23;
- rank_address := 5;
- ELSEIF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z])$' THEN
- rank_search := 21;
- rank_address := 5;
- END IF;
-
- ELSEIF country_code = 'sg' THEN
- IF postcode ~ '^([0-9]{6})$' THEN
- rank_search := 25;
- rank_address := 11;
- END IF;
-
- ELSEIF country_code = 'de' THEN
- IF postcode ~ '^([0-9]{5})$' THEN
- rank_search := 21;
- rank_address := 11;
- END IF;
-
- ELSE
- -- Guess at the postcode format and coverage (!)
- IF postcode ~ '^[A-Z0-9]{1,5}$' THEN -- Probably too short to be very local
- rank_search := 21;
- rank_address := 11;
- ELSE
- -- Does it look splitable into and area and local code?
- part := substring(postcode from '^([- :A-Z0-9]+)([- :][A-Z0-9]+)$');
-
- IF part IS NOT NULL THEN
- rank_search := 25;
- rank_address := 11;
- ELSEIF postcode ~ '^[- :A-Z0-9]{6,}$' THEN
- rank_search := 21;
- rank_address := 11;
- END IF;
- END IF;
- END IF;
-
-END;
-$$
-LANGUAGE plpgsql IMMUTABLE;
-
-