cerxes/openmaptiles
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Initial materialized views and triggers

Browse Source
This commit is contained in:
stirringhalo 2017-01-02 18:31:17 -05:00
parent 4350aa11f9
commit c64170d9be
4 changed files with 90 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
layers/transportation_name/merge_highways.sql
View File

@ -1,16 +1,11 @@
DROP TABLE IF EXISTS osm_transportation_name_linestring CASCADE;
DROP TABLE IF EXISTS osm_transportation_name_linestring_gen1 CASCADE;
DROP TABLE IF EXISTS osm_transportation_name_linestring_gen2 CASCADE;
DROP TABLE IF EXISTS osm_transportation_name_linestring_gen3 CASCADE;
-- Instead of using relations to find out the road names we
-- stitch together the touching ways with the same name
-- to allow for nice label rendering
-- Because this works well for roads that do not have relations as well
-- etldoc: osm_highway_linestring -> osm_transportation_name_linestring
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring AS (
CREATE MATERIALIZED VIEW osm_transportation_name_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
-- NOTE: The osm_id is no longer the original one which can make it difficult
@ -35,11 +30,10 @@ CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring AS (
GROUP BY name, highway, ref
) AS highway_union
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_geometry_idx ON osm_transportation_name_linestring USING gist(geometry);
-- etldoc: osm_transportation_name_linestring -> osm_transportation_name_linestring_gen1
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen1 AS (
CREATE MATERIALIZED VIEW osm_transportation_name_linestring_gen1 AS (
SELECT ST_Simplify(geometry, 50) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 8000
@ -47,7 +41,7 @@ CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen1 AS (
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen1_geometry_idx ON osm_transportation_name_linestring_gen1 USING gist(geometry);
-- etldoc: osm_transportation_name_linestring_gen1 -> osm_transportation_name_linestring_gen2
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen2 AS (
CREATE MATERIALIZED VIEW osm_transportation_name_linestring_gen2 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring_gen1
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 14000
@ -55,9 +49,34 @@ CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen2 AS (
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen2_geometry_idx ON osm_transportation_name_linestring_gen2 USING gist(geometry);
-- etldoc: osm_transportation_name_linestring_gen2 -> osm_transportation_name_linestring_gen3
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen3 AS (
CREATE MATERIALIZED VIEW osm_transportation_name_linestring_gen3 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring_gen2
WHERE highway = 'motorway' AND ST_Length(geometry) > 20000
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen3_geometry_idx ON osm_transportation_name_linestring_gen3 USING gist(geometry);
--- Triggers
CREATE OR REPLACE FUNCTION refresh_osm_transportation_name_linestring() RETURNS trigger AS
$BODY$
BEGIN
REFRESH MATERIALIZED VIEW osm_transportation_name_linestring CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_transportation_name_linestring_gen1 CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_transportation_name_linestring_gen2 CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_transportation_name_linestring_gen3 CONCURRENTLY;
RETURN null;
END;
$BODY$
language plpgsql
CREATE TRIGGER trigger_refresh_osm_transportation_name_linestring
AFTER INSERT OR UPDATE OR DELETE ON osm_highway_linestring
FOR EACH STATEMENT
EXECUTE PROCEDURE refresh_osm_transportation_name_linestring

21
layers/water_name/water_lakeline.sql
View File

@ -1,9 +1,7 @@
DROP TABLE IF EXISTS osm_water_lakeline CASCADE;
-- etldoc: osm_water_polygon -> osm_water_lakeline
-- etldoc: lake_centerline -> osm_water_lakeline
CREATE TABLE IF NOT EXISTS osm_water_lakeline AS (
CREATE MATERIALIZED VIEW osm_water_lakeline AS (
SELECT wp.osm_id,
ll.wkb_geometry AS geometry,
name, name_en, ST_Area(wp.geometry) AS area
@ -11,5 +9,20 @@ CREATE TABLE IF NOT EXISTS osm_water_lakeline AS (
INNER JOIN lake_centerline ll ON wp.osm_id = ll.osm_id
WHERE wp.name <> ''
);
CREATE INDEX IF NOT EXISTS osm_water_lakeline_geometry_idx ON osm_water_lakeline USING gist(geometry);
-- Triggers
CREATE OR REPLACE FUNCTION refresh_osm_water_lakeline() RETURNS trigger AS
$BODY$
BEGIN
REFRESH MATERIALIZED VIEW osm_water_lakeline CONCURRENTLY;
RETURN null;
END;
$BODY$
language plpgsql
CREATE TRIGGER trigger_refresh_osm_water_lakeline
AFTER INSERT OR UPDATE OR DELETE ON osm_water_polygon
FOR EACH STATEMENT
EXECUTE PROCEDURE refresh_osm_water_lakeline

21
layers/water_name/water_point.sql
View File

@ -1,9 +1,7 @@
DROP TABLE IF EXISTS osm_water_point CASCADE;
-- etldoc: osm_water_polygon -> osm_water_point
-- etldoc: lake_centerline -> osm_water_point
CREATE TABLE IF NOT EXISTS osm_water_point AS (
CREATE MATERIALIZED VIEW osm_water_point AS (
SELECT
wp.osm_id, topoint(wp.geometry) AS geometry,
wp.name, wp.name_en, ST_Area(wp.geometry) AS area
@ -11,5 +9,20 @@ CREATE TABLE IF NOT EXISTS osm_water_point AS (
LEFT JOIN lake_centerline ll ON wp.osm_id = ll.osm_id
WHERE ll.osm_id IS NULL AND wp.name <> ''
);
CREATE INDEX IF NOT EXISTS osm_water_point_geometry_idx ON osm_water_point USING gist (geometry);
-- Triggers
CREATE OR REPLACE FUNCTION refresh_osm_water_point() RETURNS trigger AS
$BODY$
BEGIN
REFRESH MATERIALIZED VIEW osm_water_point CONCURRENTLY;
RETURN null;
END;
$BODY$
language plpgsql
CREATE TRIGGER trigger_refresh_osm_water_point
AFTER INSERT OR UPDATE OR DELETE ON osm_water_polygon
FOR EACH STATEMENT
EXECUTE PROCEDURE refresh_osm_water_point

37
layers/waterway/merge_waterway.sql
View File

@ -1,15 +1,10 @@
DROP TABLE IF EXISTS osm_important_waterway_linestring CASCADE;
DROP TABLE IF EXISTS osm_important_waterway_linestring_gen1 CASCADE;
DROP TABLE IF EXISTS osm_important_waterway_linestring_gen2 CASCADE;
DROP TABLE IF EXISTS osm_important_waterway_linestring_gen3 CASCADE;
-- We merge the waterways by name like the highways
-- This helps to drop not important rivers (since they do not have a name)
-- and also makes it possible to filter out too short rivers
-- etldoc: osm_waterway_linestring -> osm_important_waterway_linestring
CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring AS (
CREATE MATERIALIZED VIEW osm_important_waterway_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
name
@ -22,11 +17,10 @@ CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring AS (
GROUP BY name
) AS waterway_union
);
CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_geometry_idx ON osm_important_waterway_linestring USING gist(geometry);
-- etldoc: osm_important_waterway_linestring -> osm_important_waterway_linestring_gen1
CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring_gen1 AS (
CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen1 AS (
SELECT ST_Simplify(geometry, 60) AS geometry, name
FROM osm_important_waterway_linestring
WHERE ST_Length(geometry) > 1000
@ -34,7 +28,7 @@ CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring_gen1 AS (
CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_gen1_geometry_idx ON osm_important_waterway_linestring_gen1 USING gist(geometry);
-- etldoc: osm_important_waterway_linestring_gen1 -> osm_important_waterway_linestring_gen2
CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring_gen2 AS (
CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen2 AS (
SELECT ST_Simplify(geometry, 100) AS geometry, name
FROM osm_important_waterway_linestring_gen1
WHERE ST_Length(geometry) > 4000
@ -42,9 +36,32 @@ CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring_gen2 AS (
CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_gen2_geometry_idx ON osm_important_waterway_linestring_gen2 USING gist(geometry);
-- etldoc: osm_important_waterway_linestring_gen2 -> osm_important_waterway_linestring_gen3
CREATE TABLE IF NOT EXISTS osm_important_waterway_linestring_gen3 AS (
CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen3 AS (
SELECT ST_Simplify(geometry, 200) AS geometry, name
FROM osm_important_waterway_linestring_gen2
WHERE ST_Length(geometry) > 8000
);
CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_gen3_geometry_idx ON osm_important_waterway_linestring_gen3 USING gist(geometry);
--- Triggers
CREATE OR REPLACE FUNCTION refresh_osm_important_waterway_linestring() RETURNS trigger AS
$BODY$
BEGIN
REFRESH MATERIALIZED VIEW osm_important_waterway_linestring CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_important_waterway_linestring_gen1 CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_important_waterway_linestring_gen2 CONCURRENTLY;
REFRESH MATERIALIZED VIEW osm_important_waterway_linestring_gen3 CONCURRENTLY;
RETURN null;
END;
$BODY$
language plpgsql
CREATE TRIGGER trigger_refresh_osm_important_waterway_linestring
AFTER INSERT OR UPDATE OR DELETE ON osm_waterway_linestring
FOR EACH STATEMENT
EXECUTE PROCEDURE refresh_osm_important_waterway_linestring