secondary password files

Currently, pg_passwd allows the creation of secondary password file that
can be used as part of 'password' pg_hba.conf entries.

Why do we bother supporting passwords in pg_shadow and secondary files? 
Seems we could just allow usernames in the secondary files, and use the
user passwords from pg_shadow.

--  Bruce Momjian                        |  http://www.op.net/~candle pgman@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026