Re: new heapcheck contrib module

[Andrey M. Borodin]

> 28 авг. 2020 г., в 18:58, Robert Haas <robertmh...@gmail.com> написал(а):
> In the case
> you mention, I think we should view that as a problem with clog rather
> than a problem with the table, and thus out of scope.

I don't think so. ISTM It's the same problem of xmax<relfrozenxid actually, 
just hidden behind detoasing.
Our regular heap_check was checking xmin\xmax invariants for tables, but failed 
to recognise the problem in toast (while toast was accessible until CLOG 
truncation).

Best regards, Andrey Borodin.