text: ﻿DROP FUNCTION IF EXISTS d3_untransform(JSONB, JSONB);
  CREATE FUNCTION d3_untransform(arc JSONB,transform JSONB)
  RETURNS JSONB
  immutable language plv8
  as $$
  	//plv8.elog(NOTICE,JSON.stringify(arc));
  	var ut = topojson.untransform({transform:transform});
  	var arcout = arc.map(ut);
  	//plv8.elog(NOTICE,'Conversiontime: ' + (endT - startT)/1000);
  	return arcout;
  $$;