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diff schema/gemma.sql @ 5030:737d7859dd86

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Store fairway dimensions as MultiPolygon This avoids storing a single invalid geometry from the data source as multiple valid geometries with duplicate attribute sets. The previous behaviour was not correctly handled in import tracking, because only the ID of the first item in a set of multiple geometries generated from a single entry from the data source was tracked.
author Tom Gottfried <tom@intevation.de>
date Wed, 18 Mar 2020 18:42:30 +0100
parents cf25b23e3eec
children 8c590ef35280
line wrap: on
line diff
--- a/schema/gemma.sql	Wed Mar 18 18:10:19 2020 +0100
+++ b/schema/gemma.sql	Wed Mar 18 18:42:30 2020 +0100
@@ -707,7 +707,7 @@
 
     CREATE TABLE fairway_dimensions (
         id int PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
-        area geography(POLYGON, 4326) NOT NULL
+        area geography(MULTIPOLYGON, 4326) NOT NULL
             CHECK(ST_IsValid(CAST(area AS geometry))),
         level_of_service smallint NOT NULL REFERENCES levels_of_service,
         min_width smallint NOT NULL,