Function rpgffi::create_setop_path

pub unsafe extern "C" fn create_setop_path(
    root: *mut PlannerInfo, 
    rel: *mut RelOptInfo, 
    subpath: *mut Path, 
    cmd: SetOpCmd, 
    strategy: SetOpStrategy, 
    distinctList: *mut List, 
    flagColIdx: AttrNumber, 
    firstFlag: c_int, 
    numGroups: f64, 
    outputRows: f64
) -> *mut SetOpPath