datafusion_physical_plan::execution_plan

Function with_new_children_if_necessary

Source 
pub fn with_new_children_if_necessary(
    plan: Arc<dyn ExecutionPlan>,
    children: Vec<Arc<dyn ExecutionPlan>>,
) -> Result<Arc<dyn ExecutionPlan>>
Expand description

Returns a copy of this plan if we change any child according to the pointer comparison. The size of children must be equal to the size of ExecutionPlan::children().