Julien Rouhaud <rjuju123@gmail.com> writes:
> Working on some side project that can cause dump of hash partitions to be
> routed to a different partition, I realized that --load-via-partition-root can
> indeed cause deadlock in such case without FK dependency or anything else.
> The problem is that each worker will perform a TRUNCATE TABLE ONLY followed by
> a copy of the original partition's data in a transaction, and that obviously
> will lead to deadlock if the original and locked partition and the restored
> partition are different.
Oh, interesting. I wonder if we can rearrange things to avoid that.
regards, tom lane
