kopia lustrzana https://github.com/openmaptiles/openmaptiles
110 wiersze
3.2 KiB
PL/PgSQL
110 wiersze
3.2 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_aerodrome_label_point;
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DROP TRIGGER IF EXISTS trigger_store ON osm_aerodrome_label_point;
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DROP TRIGGER IF EXISTS trigger_refresh ON aerodrome_label.updates;
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-- Partial index for zoom 8/9 queries
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CREATE INDEX IF NOT EXISTS osm_aerodrome_label_point_type_partial_idx
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ON osm_aerodrome_label_point USING gist (geometry)
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WHERE aerodrome_type = 'international'
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AND iata <> '';
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CREATE SCHEMA IF NOT EXISTS aerodrome_label;
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CREATE TABLE IF NOT EXISTS aerodrome_label.osm_ids
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(
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osm_id bigint PRIMARY KEY
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);
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-- etldoc: osm_aerodrome_label_point -> osm_aerodrome_label_point
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CREATE OR REPLACE FUNCTION update_aerodrome_label_point(full_update boolean) RETURNS void AS
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$$
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UPDATE osm_aerodrome_label_point
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SET geometry = ST_Centroid(geometry)
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WHERE (full_update OR osm_id IN (SELECT osm_id FROM aerodrome_label.osm_ids))
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AND ST_GeometryType(geometry) <> 'ST_Point';
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UPDATE osm_aerodrome_label_point
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SET tags = update_tags(tags, geometry)
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WHERE (full_update OR osm_id IN (SELECT osm_id FROM aerodrome_label.osm_ids))
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AND COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL
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AND tags != update_tags(tags, geometry);
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UPDATE osm_aerodrome_label_point
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SET aerodrome_type=
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CASE
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%%FIELD_MAPPING: class %%
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ELSE 'other' END
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WHERE (full_update OR osm_id IN (SELECT osm_id FROM aerodrome_label.osm_ids))
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AND aerodrome_type !=
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CASE
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%%FIELD_MAPPING: class %%
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ELSE 'other' END;
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$$ LANGUAGE SQL;
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SELECT update_aerodrome_label_point(true);
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-- Handle updates
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CREATE OR REPLACE FUNCTION aerodrome_label.store() RETURNS trigger AS
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$$
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BEGIN
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INSERT INTO aerodrome_label.osm_ids VALUES (NEW.osm_id) ON CONFLICT (osm_id) DO NOTHING;
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RETURN NULL;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TABLE IF NOT EXISTS aerodrome_label.updates
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(
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id serial PRIMARY KEY,
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t text,
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UNIQUE (t)
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);
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CREATE OR REPLACE FUNCTION aerodrome_label.flag() RETURNS trigger AS
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$$
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BEGIN
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INSERT INTO aerodrome_label.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
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RETURN NULL;
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION aerodrome_label.refresh() RETURNS trigger AS
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$$
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DECLARE
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t TIMESTAMP WITH TIME ZONE := clock_timestamp();
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BEGIN
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RAISE LOG 'Refresh aerodrome_label';
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-- Analyze tracking and source tables before performing update
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ANALYZE aerodrome_label.osm_ids;
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ANALYZE osm_aerodrome_label_point;
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PERFORM update_aerodrome_label_point(false);
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-- noinspection SqlWithoutWhere
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DELETE FROM aerodrome_label.osm_ids;
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-- noinspection SqlWithoutWhere
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DELETE FROM aerodrome_label.updates;
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RAISE LOG 'Refresh aerodrome_label done in %', age(clock_timestamp(), t);
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RETURN NULL;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER trigger_store
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AFTER INSERT OR UPDATE
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ON osm_aerodrome_label_point
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FOR EACH ROW
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EXECUTE PROCEDURE aerodrome_label.store();
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CREATE TRIGGER trigger_flag
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AFTER INSERT OR UPDATE
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ON osm_aerodrome_label_point
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FOR EACH STATEMENT
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EXECUTE PROCEDURE aerodrome_label.flag();
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CREATE CONSTRAINT TRIGGER trigger_refresh
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AFTER INSERT
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ON aerodrome_label.updates
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INITIALLY DEFERRED
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FOR EACH ROW
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EXECUTE PROCEDURE aerodrome_label.refresh();
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