docs: function pg_create_index_query_v1 (self, ObjType, type, field, typefield, is_unique) {
  	var colname = _parse_predicate_key(ObjType, {'epoch':false}, field);
  	var query = pg_create_index_query_internal_v1(self, ObjType, type, field, typefield, is_unique);
  	var params = colname.getParams();
  	if(params.length !== 0) {
  		throw new TypeError("pg_create_index_query_v1() does not support params!");
  	}
  	return query;
  }