SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toDateTime64 (children 1)
     ExpressionList (children 3)
      Literal \'1969-12-31 23:59:59.123\'
      Literal UInt64_3
      Literal \'UTC\'