PostGIS
Name
ST_RemoveIsoNode — Removes an isolated node and returns description of action. If the node is not isolated (is start or end of an edge), then an exception is thrown.
Description
Removes an isolated node and returns description of action. If the node is not isolated (is start or end of an edge), then an exception is thrown.
Availability: 1.1
This method
implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3:
Routine Details: X+1.3.3
Examples
-- Remove an isolated node with no face --
SELECT topology.ST_RemoveIsoNode('ma_topo', 7 ) As result;
result
-------------------------
Isolated node 7 removed