code: def _normalize_select_no_context(select, schema=None):
      
      if not _Column:
          _late_import()
  
      if is_text(select):
          select = Data(value=select)
      else:
          select = wrap(select)
  
      output = select.copy()
      if not select.value:
          output.name = coalesce(select.name, select.aggregate)
          if output.name:
              output.value = jx_expression(".", schema=schema)
          else:
              return Null
      elif is_text(select.value):
          if select.value.endswith(".*"):
              name = select.value[:-2].lstrip(".")
              output.name = coalesce(select.name,  name)
              output.value = LeavesOp(Variable(name), prefix=coalesce(select.prefix, name))
          else:
              if select.value == ".":
                  output.name = coalesce(select.name, select.aggregate, ".")
                  output.value = jx_expression(select.value, schema=schema)
              elif select.value == "*":
                  output.name = coalesce(select.name, select.aggregate, ".")
                  output.value = LeavesOp(Variable("."))
              else:
                  output.name = coalesce(select.name, select.value.lstrip("."), select.aggregate)
                  output.value = jx_expression(select.value, schema=schema)
      elif is_number(output.value):
          if not output.name:
              output.name = text_type(output.value)
          output.value = jx_expression(select.value, schema=schema)
      else:
          output.value = jx_expression(select.value, schema=schema)
  
      if not output.name:
          Log.error("expecting select to have a name: {{select}}",  select= select)
      if output.name.endswith(".*"):
          Log.error("{{name|quote}} is invalid select", name=output.name)
  
      output.aggregate = coalesce(canonical_aggregates[select.aggregate].name, select.aggregate, "none")
      output.default = coalesce(select.default, canonical_aggregates[output.aggregate].default)
      return output
docs: SAME NORMALIZE, BUT NO SOURCE OF COLUMNS