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Added few partial index to speed up creating materialized views in transportation merge_highways.

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This commit is contained in:
MartinMikita
2017-03-28 16:27:34 +02:00
committed by Jiri Kozel
parent cfc65c6884
commit 2996987e70
1 changed files with 18 additions and 0 deletions
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18
layers/transportation/merge_highways.sql
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@@ -13,6 +13,16 @@ DROP TRIGGER IF EXISTS trigger_refresh ON transportation.updates;
-- etldoc: osm_highway_linestring -> osm_transportation_merge_linestring
-- Improve performance of the sql in transportation_name/network_type.sql
CREATE INDEX IF NOT EXISTS osm_highway_linestring_highway_idx
ON osm_highway_linestring(highway);
-- Improve performance of the sql below
CREATE INDEX IF NOT EXISTS osm_highway_linestring_highway_partial_idx
ON osm_highway_linestring(highway)
WHERE highway IN ('motorway','trunk');
CREATE MATERIALIZED VIEW osm_transportation_merge_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
@@ -34,6 +44,10 @@ CREATE MATERIALIZED VIEW osm_transportation_merge_linestring AS (
) AS highway_union
);
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_geometry_idx ON osm_transportation_merge_linestring USING gist(geometry);
-- Improve performance of the sql below
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_highway_partial_idx
ON osm_transportation_merge_linestring(highway)
WHERE highway IN ('motorway','trunk');
-- etldoc: osm_transportation_merge_linestring -> osm_transportation_merge_linestring_gen5
CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen5 AS (
@@ -42,6 +56,10 @@ CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen5 AS (
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 20000
);
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_geometry_idx ON osm_transportation_merge_linestring_gen5 USING gist(geometry);
-- Improve performance of the sql below
CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_highway_partial_idx
ON osm_transportation_merge_linestring_gen5(highway)
WHERE highway IN ('motorway');
-- etldoc: osm_transportation_merge_linestring_gen5 -> osm_transportation_merge_linestring_gen6
CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen6 AS (