Method from

datafusion/session/src/session.rs:154–166

(state: &dyn Session)

/// Create a new task context instance from Session
impl From<&dyn Session> for TaskContext {
    fn from(state: &dyn Session) -> Self {
        let task_id = None;
        TaskContext::new(
            task_id,
            state.session_id().to_string(),
            state.config().clone(),
            state.scalar_functions().clone(),
            state.higher_order_functions().clone(),
            state.aggregate_functions().clone(),
            state.window_functions().clone(),
            Arc::clone(state.runtime_env()),
        )
    }
}
type SessionRefLock = Arc<Mutex<Option<Weak<RwLock<dyn Session>>>>>;
/// The state store that stores the reference of the runtime session state.