Name
TopoElement — TopoGeometryをTopoElementに変換します。
Synopsis
topoelement TopoElement(topogeometry topo);
例
これは完全に全て揃ったワークフローです。
-- do this if you don't have a topology setup already
-- Creates topology not allowing any tolerance
SELECT TopoElement(topo)
FROM neighborhoods;
-- using as cast
SELECT topology.TopoElementArray_Agg(topo::topoelement)
FROM neighborhoods
GROUP BY city;