Function optimize_plan

datafusion/optimizer/tests/optimizer_integration.rs:699–703

(plan: LogicalPlan)

fn observe(_plan: &LogicalPlan, _rule: &dyn OptimizerRule) {}

fn optimize_plan(plan: LogicalPlan) -> Result<LogicalPlan> {
    let config = OptimizerContext::new().with_skip_failing_rules(false);
    let optimizer = Optimizer::new();
    optimizer.optimize(plan, &config, observe)
}

/// Extension node that does NOT implement `necessary_children_exprs`.
/// Used to test that the optimizer still processes subtrees below such nodes.