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

Noop: tag sql MAT VIEWS with a special comment (#733)

Browse Source 
Tag all SQL materialized views with a machine-readable comment
to indicate that this materialized view can be created without
data:

   /* DELAY_MATERIALIZED_VIEW_CREATION */

In the next version of tools this comment can be optionally
replaced with the "WITH NO DATA" parameter, thus allowing
a much faster execution of the SQL script. All materialized
viewes will be populated with data in parallel afterwards
using the `refresh-views` tools script.
This commit is contained in:
Yuri Astrakhan
2020-01-20 12:02:49 -05:00
committed by GitHub
parent 4e13a17e1a
commit 1d91b9ef6e
6 changed files with 21 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
layers/waterway/update_important_waterway.sql
View File

@@ -30,7 +30,7 @@ CREATE MATERIALIZED VIEW osm_important_waterway_linestring AS (
WHERE name <> '' AND waterway = 'river' AND ST_IsValid(geometry)
GROUP BY name, name_en, name_de, slice_language_tags(tags)
) AS waterway_union
);
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
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
@@ -38,7 +38,7 @@ CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen1 AS (
SELECT ST_Simplify(geometry, 60) AS geometry, name, name_en, name_de, tags
FROM osm_important_waterway_linestring
WHERE ST_Length(geometry) > 1000
);
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
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
@@ -46,7 +46,7 @@ CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen2 AS (
SELECT ST_Simplify(geometry, 100) AS geometry, name, name_en, name_de, tags
FROM osm_important_waterway_linestring_gen1
WHERE ST_Length(geometry) > 4000
);
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
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
@@ -54,7 +54,7 @@ CREATE MATERIALIZED VIEW osm_important_waterway_linestring_gen3 AS (
SELECT ST_Simplify(geometry, 200) AS geometry, name, name_en, name_de, tags
FROM osm_important_waterway_linestring_gen2
WHERE ST_Length(geometry) > 8000
);
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_gen3_geometry_idx ON osm_important_waterway_linestring_gen3 USING gist(geometry);
-- Handle updates