Thank you for reply.
> Andres Freund <andres@anarazel.de> writes:
> > I don't think this has anything to do with the problem. Isn't this the
> > known problem around truncation that Tom has recently talked about fixing?
> > [1] https://www.postgresql.org/message-id/2348.1544474335%40sss.pgh.pa.us
>
> Yeah, it sure looks like that same old issue to me.
I understand.
I hope that this problem will be fixed.
Regards,
Akira Kurosawa