Moaaz Assali <ma5679(at)nyu(dot)edu> writes:
> - I have used INT64 -> UINT64 mapping in order to ensure no integer
> overflows are possible.
I don't think I trust this idea, and in any case it doesn't remove
all the overflow hazards: the reduction of the stride interval to
microseconds can overflow, and the final subtraction of the stride
can too. I changed it to just do the straightforward thing
(throwing error if the pg_xxx_s64_overflow routines detect error),
and pushed it. Thanks for the report and patch!
regards, tom lane