Re: Scheduler in Postgres

Centuries ago, Nostradamus foresaw when decibel@decibel.org ("Jim C. Nasby") would write:
> In PostgreSQL, there's currently no way to assume the identity of
> another user.

I'm confused at that...

There seem to be ways at time of connection establishment, whether via
the psql "-U" option, or the PGconnect "dbuser=foo" option, or during
a psql session via "\c - newuser".

In what way do those not represent "assumption of another user's
identity"?
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