Yes it finished successfully after changing it to 50G!
Thanks Tom!
> On Jul 16, 2015, at 2:14 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Yiqing Jin <yiqing(dot)jin(at)gmail(dot)com> writes:
>> maintenance_work_mem = 128000MB
>
> Just a thought ... does the crash go away if you reduce that to something
> like 50GB? It suddenly strikes me that qsort_tuple is not being careful
> about size_t being wider than int.
>
> regards, tom lane