Function create_physical_sort_expr 

pub fn create_physical_sort_expr(
    e: &SortExpr,
    input_dfschema: &DFSchema,
    execution_props: &ExecutionProps,
    planning_ctx: &PhysicalPlanningContext,
) -> Result<PhysicalSortExpr>

Create a physical sort expression from a logical expression

See create_physical_expr for details on the planning_ctx argument.