Three Ways to Set a Custom Prompt in ClickHouse Client

There are now three simple ways to set a custom prompt in clickhouse-client: 1. via command-line parameter --prompt, 2. in the configuration file, via settings <prompt>[...]</prompt>, and 3. also in the configuration file, via per-connection settings <connections_credentials><prompt>[...]</prompt></connection_credentials>. #74168 (Christoph Wurm).