Allow User to Override Poll_interval and Idle_connection_timeout Settings on Connection

Why it matters

This feature enables more granular control over connection behavior by allowing users to customize how frequently connections are polled and how long idle connections are kept alive. It helps optimize resource usage and responsiveness for different workloads or client requirements.

How to use it

Users can set the poll_interval and idle_connection_timeout parameters when establishing a connection to ClickHouse to override the default server settings, tailoring connection timeout and polling intervals to their needs.