Previously, libpq would establish the TCP connection, and then immediately disconnect if the credentials were not available. The same thing happened if you tried to use a Unix domain socket with gssencmode=require. Check those conditions before establishing the TCP connection. This is a very minor issue, but my motivation to do this now is that I'm about to add more detail to the tests for encryption negotiation. This makes the case of gssencmode=require but no credentials configured fail at the same stage as with gssencmode=require and GSSAPI support not compiled at all. That avoids having to deal with variations in expected output depending on build options. Discussion: https://www.postgresql.org/message-id/CAEze2Wja8VUoZygCepwUeiCrWa4jP316k0mvJrOW4PFmWP0Tcw@mail.gmail.com
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.