What library is used by PostgreSQL for encryption?

Are the contents of the pg_autovacuum system catalog saved when pg_dumpall is used to backup the database?

On a UNIX system, what is the best way to prevent all non-local connections to the postmaster?

Can deferrable constraints be deferred by a trigger?

After a PostgreSQL installation, how will you create the database cluster?

How will you change the TCP port which PostgreSQL will listen to?

Which index types support multicolumn indexes?

In the following operation, which ones can trigger a trigger?

Out of the following backup approaches, which ones are applicable to PostgreSQL?

Which index types are supported by PostgreSQL?

Which authentication methods are supported by PostgreSQL?