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Added partial index to speed up creating materialized view in waterway merge_waterway SQL.

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MartinMikita 2017-03-28 16:28:29 +02:00 committed by Jiri Kozel
parent 13e8625862
commit a322851274
1 changed files with 8 additions and 0 deletions
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8
layers/waterway/merge_waterway.sql
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@ -11,6 +11,14 @@ DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen1 CASCADE;
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen2 CASCADE; DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen2 CASCADE;
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen3 CASCADE; DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen3 CASCADE;
CREATE INDEX IF NOT EXISTS osm_waterway_linestring_waterway_partial_idx
ON osm_waterway_linestring(waterway)
WHERE waterway = 'river';
CREATE INDEX IF NOT EXISTS osm_waterway_linestring_name_partial_idx
ON osm_waterway_linestring(name)
WHERE name <> '';
CREATE MATERIALIZED VIEW osm_important_waterway_linestring AS ( CREATE MATERIALIZED VIEW osm_important_waterway_linestring AS (
SELECT SELECT
(ST_Dump(geometry)).geom AS geometry, (ST_Dump(geometry)).geom AS geometry,