There's an assertion in multixact.c, MultiXactIdExpand function, line 273:
Assert(!TransactionIdEquals(multi, xid));
where multi is a MultiXactId and xid is a TransactionId.
Isn't this bogus? If I understand the code correctly, multixactids and
regular xids live in completely separate id spaces. Therefore a comparison
between them makes no sense.
- Heikki
