Function rpgffi::create_recursiveunion_path

pub unsafe extern "C" fn create_recursiveunion_path(
    root: *mut PlannerInfo, 
    rel: *mut RelOptInfo, 
    leftpath: *mut Path, 
    rightpath: *mut Path, 
    target: *mut PathTarget, 
    distinctList: *mut List, 
    wtParam: c_int, 
    numGroups: f64
) -> *mut RecursiveUnionPath