Hello everybody!
Is there a way to create reference to any system relation?
For example I'd like to create relation which extends pg_shadow with
some attributes such as reference to relation of physical person,
information about worker etcetera.
Thanks in advance
--
Anton
ps My stupid tries:
If I've tried to create reference to pg_shadow(usesysid) pgsql raised
an error.
Then I've tried to inherit pg_shadow but due to inheritance
restriction usesysid and usename become not unique. And if I insert a
tuple into new relation user shouldn't appear in the db.
