Function pgx_pg_sys::systable_beginscan

pub unsafe fn systable_beginscan(
    arg_heapRelation: Relation, 
    arg_indexId: Oid, 
    arg_indexOK: bool, 
    arg_snapshot: Snapshot, 
    arg_nkeys: c_int, 
    arg_key: ScanKey
) -> SysScanDesc