16 lines
526 B
SQL
16 lines
526 B
SQL
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DROP TABLE IF EXISTS osm_water_lakeline CASCADE;
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-- etldoc: osm_water_polygon -> osm_water_lakeline
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-- etldoc: lake_centerline -> osm_water_lakeline
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CREATE TABLE IF NOT EXISTS osm_water_lakeline AS (
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SELECT wp.osm_id,
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ll.wkb_geometry AS geometry,
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name, name_en, ST_Area(wp.geometry) AS area
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FROM osm_water_polygon AS wp
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INNER JOIN lake_centerline ll ON wp.osm_id = ll.osm_id
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WHERE wp.name <> ''
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);
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CREATE INDEX IF NOT EXISTS osm_water_lakeline_geometry_idx ON osm_water_lakeline USING gist(geometry);
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