"Heinemann, Manfred (IMS)" <HeinemannM(at)imsweb(dot)com> writes:
> We allow some user querying against the database and a user wrote sql that would repeatedly cause a segmentation fault. We can't share the data but I will show what I can.
The info you've provided is not of much help, but if you could show
a stack trace from the point of the segfault, that might narrow
things down.
https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend
regards, tom lane