SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function plus (children 1)
     ExpressionList (children 2)
      Function toDateTime64 (children 1)
       ExpressionList (children 2)
        Literal \'3000-01-01 12:00:00.12345\'
        Literal UInt64_0
      Function toIntervalMicrosecond (children 1)
       ExpressionList (children 1)
        Literal UInt64_0