6457419e0d
I would like to reformat all of our SQL to have a concise coding style. This makes it far easier to understand the code for a casual contributor, and lets us spot errors more easily. Most importantly, it makes it much easier to grep (search) the code because it is more likely to be in the same syntax Some key changes: * SQL keywords are always UPPERCASE, e.g. `SELECT WHEN AS END ...` * types, variables, aliases, and field names (identifiers) are always lower case * `LANGUAGE 'plpgsql'` is now `LANGUAGE plpgsql` (no quotes) * a few minor spacing/semicolon cleanups P.S. Per @TomPohys request, `TABLE` is spelled using upper case despite being a type for consistency with PG Docs. Same for `LANGUAGE SQL` vs `LANGUAGE plpgsql`.
62 lines
1.6 KiB
PL/PgSQL
62 lines
1.6 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_housenumber_point;
|
|
DROP TRIGGER IF EXISTS trigger_refresh ON housenumber.updates;
|
|
|
|
-- etldoc: osm_housenumber_point -> osm_housenumber_point
|
|
CREATE OR REPLACE FUNCTION convert_housenumber_point() RETURNS void AS
|
|
$$
|
|
BEGIN
|
|
UPDATE osm_housenumber_point
|
|
SET geometry =
|
|
CASE
|
|
WHEN ST_NPoints(ST_ConvexHull(geometry)) = ST_NPoints(geometry)
|
|
THEN ST_Centroid(geometry)
|
|
ELSE ST_PointOnSurface(geometry)
|
|
END
|
|
WHERE ST_GeometryType(geometry) <> 'ST_Point';
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
SELECT convert_housenumber_point();
|
|
|
|
-- Handle updates
|
|
|
|
CREATE SCHEMA IF NOT EXISTS housenumber;
|
|
|
|
CREATE TABLE IF NOT EXISTS housenumber.updates
|
|
(
|
|
id serial PRIMARY KEY,
|
|
t text,
|
|
UNIQUE (t)
|
|
);
|
|
CREATE OR REPLACE FUNCTION housenumber.flag() RETURNS trigger AS
|
|
$$
|
|
BEGIN
|
|
INSERT INTO housenumber.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
|
|
RETURN NULL;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE OR REPLACE FUNCTION housenumber.refresh() RETURNS trigger AS
|
|
$$
|
|
BEGIN
|
|
RAISE LOG 'Refresh housenumber';
|
|
PERFORM convert_housenumber_point();
|
|
-- noinspection SqlWithoutWhere
|
|
DELETE FROM housenumber.updates;
|
|
RETURN NULL;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER trigger_flag
|
|
AFTER INSERT OR UPDATE OR DELETE
|
|
ON osm_housenumber_point
|
|
FOR EACH STATEMENT
|
|
EXECUTE PROCEDURE housenumber.flag();
|
|
|
|
CREATE CONSTRAINT TRIGGER trigger_refresh
|
|
AFTER INSERT
|
|
ON housenumber.updates
|
|
INITIALLY DEFERRED
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE housenumber.refresh();
|