Thread: Feature Request: log_line_prefix %h Counterpart

Looking for an escape sequence for log_line_prefix for the IP address that traffic was destined to, i.e., the *local* address of the TCP connection, natural counterpart to "remote IP address".

If PostgreSQL listens on all/multiple interfaces, useful to be able to log to which a connection was established, (even if admins should already be aware of server routing tables).

In my particular case though, traffic comes through (is sourced from) 127.0.0.1 - I can't control this.

However, I can connect to PostgreSQL on any destination IP in the 127.0.0.0/8 netblock.

It would help me distinguish traffic if I could log local/destination IP address.

This log info would be more trustworthy (in my case) than %a app name.

Apologies if it's already in v16 "20.8. Error Reporting and Logging" or other docs and I'm simply not seeing it.