reference who manages the data for iter_key and iter_value
reference who manages the data for iter_key and iter_value

alberts/gorocks,chanxuehong/goleveldb,DanielMorsing/rocksdb,elijahandrews/levigo,influxdata/hyperleveldb-go,jmhodges/levigo_leveldb_1.4,evanphx/levigo,influxdata/rocksdb,influxdb/hyperleveldb-go,dckit/rocksdb,mikefaille/rocksdb-go,influxdb/rocksdb,jmhodges/levigo,influxdb/levigo