Hello,
I made a small reproducer here - https://github.com/joy4eg/pg-merge-crash
It creates a few tables and then executes MERGE statements in parallel.
Yaroslav.
> On 2025-07-15 20:13 CEST Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
>
> PG Bug reporting form <noreply@postgresql.org> writes:
> > During testing a flow in an app, I encountered a segfault that only happens
> > during parallel execution:
> > https://gist.github.com/joy4eg/708458e204f52129a8e54a13534586b7
>
> This report isn't terribly helpful, since you have not explained
> how to trigger the crash. If we can't duplicate it, it's hard
> to decide what is the appropriate fix.
>
> regards, tom lane
