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Add simplified water materialized views (#739) 

Move materialized view creation from the tools repo.

This PR should be merged before the https://github.com/openmaptiles/openmaptiles-tools/pull/115

Merge the other PR shortly after this one to avoid doing the same work twice - first creating simplified table, then dropping it and recreating them as materialized views.
pull/770/head
Yuri Astrakhan 2020-01-20 12:12:19 -05:00 zatwierdzone przez GitHub
rodzic 1d91b9ef6e
commit 11f4856d48
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layers/water/water.sql
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@ -1,3 +1,48 @@
-- This statement can be deleted after the water importer image stops creating this object as a table
DO $$ BEGIN DROP TABLE IF EXISTS osm_ocean_polygon_gen1 CASCADE; EXCEPTION WHEN wrong_object_type THEN END; $$ language 'plpgsql';
-- etldoc: osm_ocean_polygon -> osm_ocean_polygon_gen1
DROP MATERIALIZED VIEW IF EXISTS osm_ocean_polygon_gen1 CASCADE;
CREATE MATERIALIZED VIEW osm_ocean_polygon_gen1 AS (
SELECT ST_Simplify(geometry, 20) AS geometry
FROM osm_ocean_polygon
) /* DELAY_MATERIALIZED_VIEW_CREATION */ ;
CREATE INDEX IF NOT EXISTS osm_ocean_polygon_gen1_idx ON osm_ocean_polygon_gen1 USING gist (geometry);
-- This statement can be deleted after the water importer image stops creating this object as a table
DO $$ BEGIN DROP TABLE IF EXISTS osm_ocean_polygon_gen2 CASCADE; EXCEPTION WHEN wrong_object_type THEN END; $$ language 'plpgsql';
-- etldoc: osm_ocean_polygon -> osm_ocean_polygon_gen2
DROP MATERIALIZED VIEW IF EXISTS osm_ocean_polygon_gen2 CASCADE;
CREATE MATERIALIZED VIEW osm_ocean_polygon_gen2 AS (
SELECT ST_Simplify(geometry, 40) AS geometry
FROM osm_ocean_polygon
) /* DELAY_MATERIALIZED_VIEW_CREATION */ ;
CREATE INDEX IF NOT EXISTS osm_ocean_polygon_gen2_idx ON osm_ocean_polygon_gen2 USING gist (geometry);
-- This statement can be deleted after the water importer image stops creating this object as a table
DO $$ BEGIN DROP TABLE IF EXISTS osm_ocean_polygon_gen3 CASCADE; EXCEPTION WHEN wrong_object_type THEN END; $$ language 'plpgsql';
-- etldoc: osm_ocean_polygon -> osm_ocean_polygon_gen3
DROP MATERIALIZED VIEW IF EXISTS osm_ocean_polygon_gen3 CASCADE;
CREATE MATERIALIZED VIEW osm_ocean_polygon_gen3 AS (
SELECT ST_Simplify(geometry, 80) AS geometry
FROM osm_ocean_polygon
) /* DELAY_MATERIALIZED_VIEW_CREATION */ ;
CREATE INDEX IF NOT EXISTS osm_ocean_polygon_gen3_idx ON osm_ocean_polygon_gen3 USING gist (geometry);
-- This statement can be deleted after the water importer image stops creating this object as a table
DO $$ BEGIN DROP TABLE IF EXISTS osm_ocean_polygon_gen4 CASCADE; EXCEPTION WHEN wrong_object_type THEN END; $$ language 'plpgsql';
-- etldoc: osm_ocean_polygon -> osm_ocean_polygon_gen4
DROP MATERIALIZED VIEW IF EXISTS osm_ocean_polygon_gen4 CASCADE;
CREATE MATERIALIZED VIEW osm_ocean_polygon_gen4 AS (
SELECT ST_Simplify(geometry, 160) AS geometry
FROM osm_ocean_polygon
) /* DELAY_MATERIALIZED_VIEW_CREATION */ ;
CREATE INDEX IF NOT EXISTS osm_ocean_polygon_gen4_idx ON osm_ocean_polygon_gen4 USING gist (geometry);
CREATE OR REPLACE FUNCTION water_class(waterway TEXT) RETURNS TEXT AS $$
SELECT CASE
%%FIELD_MAPPING: class %%