May 2018
Intermediate to advanced
576 pages
30h 25m
English
After authenticating the connection using an external authentication system, PostgreSQL will usually proceed to check that the externally authenticated username matches the database username that the user wishes to connect as, and rejects the connection if these two do not match.
If there is a map= parameter specified for the current line in pg_hba.conf, then the system will scan the map line by line, and will let the client proceed with connecting if a match is found.