README

postgresql-entrypoint-initdb.d/11_postgis.sql

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+set SEARCH_PATH to public,postgis;
+
+create table point (
+  id serial primary key,
+  nom text not null,
+  altitude double precision,
+  geom postgis.geometry(point, 4326) not null
+);
+
+create index idx_point_geom
+  on point using gist (geom);
+
+create table route (
+  id serial primary key,
+  depart int,
+  arrivee int,
+  geom postgis.geometry(linestring, 4326) not null,
+  longueur double precision
+);
+
+create index idx_route_geom
+  on route using gist (geom);
+
+create or replace function maj_longueur()
+returns trigger as $$
+begin
+  new.longueur := postgis.st_length(new.geom) * 1000;
+  return new;
+end;
+$$ language plpgsql;
+
+create trigger trigger_longueur
+  before insert or update on route
+  for each row
+  execute function maj_longueur();
+
+-- ************************************************************
+
+create table route_cout (
+  route_id int references route(id),
+  tag text,
+  cout float,
+  cout_inverse float,
+  primary key (route_id, tag)
+);
+
+create table zone (
+  id int primary key,
+  nom text,
+  categorie text,
+  geom postgis.geometry(multipolygon, 4326) -- on choisit srid 4326 (wgs84)
+);
+
+-- ************************************************************
+
+\COPY point FROM '/tmp/point.csv' (FORMAT CSV, header, ENCODING 'UTF8');
+\COPY route(id, depart, arrivee, geom) FROM '/tmp/route.csv' (FORMAT CSV, header, ENCODING 'UTF8');
+\COPY route_cout FROM '/tmp/route_cout.csv' (FORMAT CSV, header, ENCODING 'UTF8');
+\COPY zone FROM '/tmp/zone.csv' (FORMAT CSV, header, ENCODING 'UTF8');