David Gauthier wrote: > I can avoid the error by just throwing a namespace in there... > atletx7-reg036:/home/dgauthie[ 214 ] --> setenv PGOPTIONS "-c > 'os.user=$USER' " > But once in, "show os.user" is undefined. It's documented to work [1], but you need to remove these single quotes. For instance: $ env PGOPTIONS="-c os.user=$USER" psql -d postgres psql (12.4 (Debian 12.4-1.pgdg90+1)) Type "help" for help. postgres=> show "os.user"; os.user --------- daniel (1 row) If characters needed to be quoted in the value, backslash should be used as the quote character. Since it's also a quote character for the shell, two levels of quoting are needed: $ env PGOPTIONS="-c os.user=user\\ is\\ $USER" psql -d postgres psql (12.4 (Debian 12.4-1.pgdg90+1)) Type "help" for help. postgres=> show "os.user"; os.user ---------------- user is daniel (1 row) [1] https://www.postgresql.org/docs/current/config-setting.html Best regards, -- Daniel Vérité PostgreSQL-powered mailer: https://www.manitou-mail.org Twitter: @DanielVerite