Mercurial > gemma
diff schema/gemma.sql @ 1983:f9f1babe52ae
Fix area generation from multipolygon input
In case the waterway axis representing a stretch intersects distinct
parts of the input area, a multipolygon has to be returned. Before,
an arbitrary polygon was selected due to the used function not being
set-returning.
In passing, consistently name respective columns in schema.
| author | Tom Gottfried <tom@intevation.de> |
|---|---|
| date | Wed, 23 Jan 2019 16:25:43 +0100 |
| parents | d966f03ea819 |
| children | 48001472e1d8 8eeb0b5eb340 |
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--- a/schema/gemma.sql Wed Jan 23 16:18:36 2019 +0100 +++ b/schema/gemma.sql Wed Jan 23 16:25:43 2019 +0100 @@ -351,10 +351,7 @@ id int PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY, name varchar NOT NULL, stretch isrsrange NOT NULL, - -- TODO: make it a (MULTI)-LINESTRING. - -- POLYGON is chosen for the convinience - -- of re-using ISRSrange_area. - geom geography(POLYGON, 4326) NOT NULL, + area geography(MULTIPOLYGON, 4326) NOT NULL, objnam varchar NOT NULL, nobjnam varchar, date_info timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP, @@ -376,7 +373,7 @@ name, (stretch).lower::varchar as lower, (stretch).upper::varchar as upper, - geom::Geometry(POLYGON, 4326), + area::Geometry(MULTIPOLYGON, 4326), objnam, nobjnam, date_info, @@ -442,7 +439,7 @@ objnam varchar, nobjnm varchar, stretch isrsrange NOT NULL, - area geography(POLYGON, 4326) NOT NULL, + area geography(MULTIPOLYGON, 4326) NOT NULL, rb char(2) NOT NULL REFERENCES countries, -- from rb_lb in interface lb char(2) NOT NULL REFERENCES countries, -- from rb_lb in interface responsible_country char(2) NOT NULL REFERENCES countries,