Method optimizer

datafusion/core/src/execution/session_state.rs:633–635

Returns the [`Optimizer`] for this session

(&self)

    /// Returns the [`Optimizer`] for this session
    pub fn optimizer(&self) -> &Optimizer {
        &self.optimizer
    }

    /// Returns the [`ExprPlanner`]s for this session
    pub fn expr_planners(&self) -> &[Arc<dyn ExprPlanner>] {