[GENERAL] reload postgresql with invalid pg_hba.conf

A system administration applied an invalid line into the pg_hba.conf file and called "service postgresql reload". Since that command doesn't return any error and leaves with exit code 0 it seams that new configuration was applied. Of course postgresql added a warning to the log file:

[GENERAL] Graphical entity relation model

Does anybody know a Software for generating graphical entity relation models from existing postgresql databases? Best regards Johannes