On Tue, Oct 5, 2021 at 10:25 AM John Naylor <john.nay...@enterprisedb.com> wrote: > int64 is used elsewhere in this file, and I see now reason to do otherwise.
Right. The point of using int64 in tuplesort.c is that the values may become negative in certain edge-cases. The whole LACKMEM() concept that tuplesort.c uses to enforce work_mem limits sometimes allows the implementation to use slightly more memory than theoretically allowable. That's how we get negative values. -- Peter Geoghegan
