Function from_higher_order_function
pub fn from_higher_order_function(
producer: &mut impl SubstraitProducer,
fun: &HigherOrderFunction,
schema: &Arc<DFSchema>,
) -> Result<Expression, DataFusionError>pub fn from_higher_order_function(
producer: &mut impl SubstraitProducer,
fun: &HigherOrderFunction,
schema: &Arc<DFSchema>,
) -> Result<Expression, DataFusionError>