On 2023-Feb-23, Matthias van de Meent wrote: > > + for (heapBlk = 0; heapBlk < nblocks; heapBlk += pagesPerRange) > > I am not familiar with the frequency of max-sized relations, but this > would go into an infinite loop for pagesPerRange values >1 for > max-sized relations due to BlockNumber wraparound. I think there > should be some additional overflow checks here.
They are definitely not very common -- BlockNumber wraps around at 32 TB IIUC. But yeah, I guess it is a possibility, and perhaps we should find a way to write these loops in a more robust manner. -- Álvaro Herrera Breisgau, Deutschland — https://www.EnterpriseDB.com/ "World domination is proceeding according to plan" (Andrew Morton)
