code: def map_to_es(self):
          
          full_name = self.query_path
          return set_default(
              {
                  relative_field(c.name, full_name): c.es_column
                  for k, cs in self.lookup.items()
                  # if startswith_field(k, full_name)
                  for c in cs if c.jx_type not in STRUCT
              },
              {
                  c.name: c.es_column
                  for k, cs in self.lookup.items()
                  # if startswith_field(k, full_name)
                  for c in cs if c.jx_type not in STRUCT
              }
          )
docs: RETURN A MAP FROM THE NAMESPACE TO THE es_column NAME