ST_ModEdgeHeal — Heals two edges by deleting the node connecting them, modifying the first edge and deleting the second edge. Returns the id of the deleted node.
int ST_ModEdgeHeal(varchar  atopology, integer  anedge, integer  anotheredge);
Heals two edges by deleting the node connecting them, modifying the first edge and deleting the second edge. Returns the id of the deleted node. Updates all existing joined edges and relationships accordingly.
Availability: 2.0
 This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details:  X.3.9