v.25.7Improvement

Clickhouse-server without a configuration file will also

clickhouse-server without a configuration file will also listen to the PostgreSQL port 9005, like with the default config. #82633 (Alexey Milovidov).
clickhouse-server now listens on the PostgreSQL port 9005 by default even when no configuration file is provided.

Why it matters

This feature ensures that clickhouse-server behaves consistently with the default configuration, automatically accepting connections on the PostgreSQL port 9005 without requiring an explicit config file. It simplifies setup and improves usability for users relying on PostgreSQL protocol compatibility.

How to use it

Simply start clickhouse-server without specifying a configuration file, and it will listen on port 9005 for PostgreSQL connections by default.