SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function dictGetString (children 1)
     ExpressionList (children 3)
      Identifier default.dict3
      Literal \'some_column\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_12