SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toStartOfInterval (children 1)
     ExpressionList (children 2)
      Function toDateTime64 (children 1)
       ExpressionList (children 2)
        Literal \'\\0930-12-12 12:12:12.1234567\'
        Literal UInt64_3
      Function toIntervalNanosecond (children 1)
       ExpressionList (children 1)
        Literal UInt64_1024
