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vidage de TOUTES les tables de routage

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MaelReboux 2019-05-05 17:30:05 +02:00
parent b491468c5a
commit 31bc6f69c3
1 changed files with 6 additions and 0 deletions
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6
scripts/update_osm_roads_pgr.sql
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@ -18,7 +18,12 @@ UPDATE osm_roads SET topo_geom = topology.toTopoGeom(the_geom, 'osm_roads_topo',
-- maj de la couche support des calculs d'itinéraire
-- 30 s
-- on commence par vider les couches existantes
TRUNCATE TABLE osm_roads_pgr ;
TRUNCATE TABLE osm_roads_pgr_noded ;
TRUNCATE TABLE osm_roads_pgr_vertices_pgr ;
-- on remplit la couche de lignes
INSERT INTO osm_roads_pgr
( SELECT
row_number() over() as id,
@ -47,6 +52,7 @@ UPDATE osm_roads_pgr SET reverse_cost = st_length(the_geom);
-- calcul du graphe routier par pgRouting
-- cela va remplir les tables osm_roads_pgr_noded et osm_roads_pgr_vertices_pgr
-- 30 s
SELECT pgr_createTopology('osm_roads_pgr', 1.0);