message: bugfix for minor changes
diff: @@ -1541,7 +1541,7 @@ OP_NAMESPACE_BEGIN
  }
  void RocksDBIterator::Del()
  {
  - if (NULL != m_iter)
  + if (NULL != m_rocks_iter)
  {
  rocksdb::WriteOptions opt;
  m_engine->m_db->Delete(opt, m_cf, m_rocks_iter->key());
  @@ -1550,7 +1550,7 @@ OP_NAMESPACE_BEGIN
  }
  RocksDBIterator::~RocksDBIterator()
  {
  - if (NULL != m_rocks_iter)
  + if (NULL != m_iter)
  {
  DELETE(m_iter);
  //g_iter_cache.Recycle(m_iter);
  