On Sun, 4 Sep 2016, Adrian Klaver wrote:
-W is not referring to the OS user but the database superuser. Now in your
case they have the same name, postgres. The settings in /etc/passwd are
not relevant to what -W is doing. -W is referring to user information
being stored in the cluster in the system tables pg_user and pg_shadow:
https://www.postgresql.org/docs/9.5/static/catalogs.html
Adrian,
I did not know this. Thanks for the information.
Rich
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