SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function CAST (children 1)
     ExpressionList (children 2)
      Function toDateTime64 (children 1)
       ExpressionList (children 3)
        Literal \'1965-12-12 12:12:12.123\'
        Literal UInt64_3
        Literal \'UTC\'
      Literal \'Decimal64(3)\'