SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function toDateTime64 (alias dt64) (children 1)
     ExpressionList (children 2)
      Literal \'2019-09-16 19:20:12.345678910\'
      Literal UInt64_3
   ExpressionList (children 4)
    Identifier dt64
    Function fromUnixTimestamp64Milli (children 1)
     ExpressionList (children 1)
      Function toUnixTimestamp64Milli (children 1)
       ExpressionList (children 1)
        Identifier dt64
    Function fromUnixTimestamp64Micro (children 1)
     ExpressionList (children 1)
      Function toUnixTimestamp64Micro (children 1)
       ExpressionList (children 1)
        Identifier dt64
    Function fromUnixTimestamp64Nano (children 1)
     ExpressionList (children 1)
      Function toUnixTimestamp64Nano (children 1)
       ExpressionList (children 1)
        Identifier dt64