SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier value
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 3)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1 (alias value)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1
         SelectQuery (children 1)
          ExpressionList (children 1)
           Literal UInt64_1