Function datafusion::physical_plan::with_new_children_if_necessary

source ยท 
pub fn with_new_children_if_necessary(
    plan: Arc<dyn ExecutionPlan>,
    children: Vec<Arc<dyn ExecutionPlan>>,
) -> Result<Arc<dyn ExecutionPlan>, DataFusionError>
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().