293     void Seek(const Slice& internal_key, const char* memtable_key) override {  in Seek()  argument
295           (memtable_key != nullptr) ?  in Seek()
296               memtable_key : EncodeKey(&tmp_, internal_key);  in Seek()
302                      const char* memtable_key) override {  in SeekForPrev()  argument
303       const char* encoded_key = (memtable_key != nullptr)  in SeekForPrev()
304                                     ? memtable_key  in SeekForPrev()
414     void Seek(const Slice& k, const char* memtable_key) override {  in Seek()  argument
428         if (memtable_key != nullptr) {  in Seek()
429           skip_list_iter_->Seek(memtable_key);  in Seek()
439         HashLinkListRep::LinkListIterator::Seek(k, memtable_key);  in Seek()
724     for (iter.Seek(k.memtable_key().data());  in Get()