Oops! I made a mistake, which clearly showed up in my last email: I forgot to psql back in as "tester".
Now I get the right behavior: $ psql postgres tester psql (9.4.5, server 11devel) Type "help" for help. postgres=> select pg_read_file('/Users/postgres/temp'); ERROR: absolute path not allowed Thanks for bearing with me. So far so good on this feature, going to run the tests too. Best, Ryan