"David G. Johnston" <david.g.johnston@xxxxxxxxx> writes: > I'm using Ubuntu 16.04 Hmph. Works for me on RHEL6. I'm betting that Ubuntu has put in some weird security restriction, possibly an overreaction to the "shellshock" bug which was in the exported-functions feature. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general