Re: psql dumps core

"K. Ari Krupnikov" <ari@iln.net> writes:
> psql on the clent machime aborts with this message:

> psql:recreate-dbdom-db.pgsql:4: \connect: pqReadData() -- backend closed
> the channel unexpectedly.
>         This probably means the backend terminated abnormally
>         before or while processing the request.
> Segmentation fault (core dumped)

> I get a core dump in the current directory on the client.

No advice possible with so little information.  What is the query
that triggers the crash?  What are the definitions of the tables
used in the query?  Can you get a backtrace from the psql coredump
(and also from the backend coredump, if there is one ... which seems
likely)?

            regards, tom lane