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First version of the extension cdb_geocoder_admin0

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This commit is contained in:
Rafa de la Torre
2015-10-22 17:05:09 +02:00
parent 55518bfa2b
commit cc58df6fcd
8 changed files with 205 additions and 122 deletions
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72
geocoder/admin0/sql/admin0_synonyms.sql
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CREATE TABLE admin0_synonyms (
name text,
rank double precision,
created_at timestamp with time zone DEFAULT now() NOT NULL,
updated_at timestamp with time zone DEFAULT now() NOT NULL,
the_geom geometry(Geometry,4326),
the_geom_webmercator geometry(Geometry,3857),
cartodb_id integer NOT NULL,
adm0_a3 text,
name_ text
);
CREATE SEQUENCE admin0_synonyms_cartodb_id_seq
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
ALTER SEQUENCE admin0_synonyms_cartodb_id_seq OWNED BY admin0_synonyms.cartodb_id;
ALTER TABLE ONLY admin0_synonyms ALTER COLUMN cartodb_id SET DEFAULT nextval('admin0_synonyms_cartodb_id_seq'::regclass);
ALTER TABLE ONLY admin0_synonyms
ADD CONSTRAINT admin0_synonyms_cartodb_id_key UNIQUE (cartodb_id);
ALTER TABLE ONLY admin0_synonyms
ADD CONSTRAINT admin0_synonyms_pkey PRIMARY KEY (cartodb_id);
CREATE INDEX admin0_synonyms_the_geom_idx ON admin0_synonyms USING gist (the_geom);
CREATE INDEX admin0_synonyms_the_geom_webmercator_idx ON admin0_synonyms USING gist (the_geom_webmercator);
CREATE INDEX idx_admin0_synonyms_nam ON admin0_synonyms USING btree (name);
CREATE INDEX idx_admin0_synonyms_name ON admin0_synonyms USING btree (lower(regexp_replace(name, '\W+'::text, ''::text)));
CREATE INDEX idx_admin0_synonyms_name_ ON admin0_synonyms USING btree (name_);
CREATE INDEX idx_admin0_synonyms_name_patt ON admin0_synonyms USING btree (name_ text_pattern_ops);
CREATE INDEX idx_admin0_synonyms_name_rank ON admin0_synonyms USING btree (name_, rank);
CREATE INDEX idx_admin0_synonyms_rank ON admin0_synonyms USING btree (rank);
CREATE TRIGGER admin0_synonyms_name_update BEFORE INSERT OR UPDATE OF name ON admin0_synonyms FOR EACH ROW EXECUTE PROCEDURE alpha_numeric_identifiers();
CREATE TRIGGER track_updates AFTER INSERT OR DELETE OR UPDATE OR TRUNCATE ON admin0_synonyms FOR EACH STATEMENT EXECUTE PROCEDURE cartodb.cdb_tablemetadata_trigger();
CREATE TRIGGER update_the_geom_webmercator_trigger BEFORE INSERT OR UPDATE OF the_geom ON admin0_synonyms FOR EACH ROW EXECUTE PROCEDURE cartodb._cdb_update_the_geom_webmercator();
CREATE TRIGGER update_updated_at_trigger BEFORE UPDATE ON admin0_synonyms FOR EACH ROW EXECUTE PROCEDURE cartodb._cdb_update_updated_at();

21
geocoder/admin0/sql/geocoder.sql
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--- Geocoding function ---
CREATE OR REPLACE FUNCTION geocode_admin0_polygons(name text[])
RETURNS SETOF geocode_admin_v1 AS $$
DECLARE
ret geocode_admin_v1%rowtype;
BEGIN
-- FOR ret IN
RETURN QUERY
SELECT d.q, n.the_geom as geom, CASE WHEN s.adm0_a3 IS NULL then FALSE ELSE TRUE END AS success FROM (SELECT q, lower(regexp_replace(q, '[^a-zA-Z\u00C0-\u00ff]+', '', 'g'))::text x FROM (SELECT unnest(name) q) g) d LEFT OUTER JOIN admin0_synonyms s ON name_ = d.x LEFT OUTER JOIN ne_admin0_v3 n ON s.adm0_a3 = n.adm0_a3 GROUP BY d.q, n.the_geom, s.adm0_a3;
END
$$ LANGUAGE 'plpgsql' SECURITY DEFINER;
-- admin0_synonym_lookup
CREATE OR REPLACE FUNCTION admin0_synonym_lookup(name text[])
RETURNS SETOF synonym_lookup_v1 AS $$
DECLARE
ret synonym_lookup_v1%rowtype;
BEGIN RETURN QUERY
SELECT d.q, s.adm0_a3 FROM (SELECT q, lower(regexp_replace(q, '[^a-zA-Z\u00C0-\u00ff]+', '', 'g'))::text x FROM (SELECT unnest(name) q) g) d LEFT OUTER JOIN admin0_synonyms s ON name_ = d.x GROUP BY d.q, s.adm0_a3;
END
$$ LANGUAGE 'plpgsql' SECURITY DEFINER;

14
geocoder/admin0/sql/synonym_service.sql
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--EXAMPLE
-- SELECT (admin0_synonym_lookup(Array['United States', 'ESP'])).*
CREATE OR REPLACE FUNCTION admin0_synonym_lookup(name text[])
RETURNS SETOF synonym_lookup_v1 AS $$
DECLARE
ret synonym_lookup_v1%rowtype;
BEGIN
-- FOR ret IN
RETURN QUERY
SELECT d.q, s.adm0_a3 FROM (SELECT q, lower(regexp_replace(q, '[^a-zA-Z\u00C0-\u00ff]+', '', 'g'))::text x FROM (SELECT unnest(name) q) g) d LEFT OUTER JOIN admin0_synonyms s ON name_ = d.x GROUP BY d.q, s.adm0_a3;
END
$$ LANGUAGE 'plpgsql' SECURITY DEFINER;