69   Status Put(ColumnFamilyHandle* column_family, const Slice& key,
71   Status Put(const Slice& key, const Slice& value) override {  in Put()
78   Status Put(ColumnFamilyHandle* column_family, const SliceParts& key,
80   Status Put(const SliceParts& key, const SliceParts& value) override {  in Put()
86   Status Delete(ColumnFamilyHandle* column_family, const Slice& key) override;
87   Status Delete(const Slice& key) override { return Delete(nullptr, key); }  in Delete()
90   Status Delete(ColumnFamilyHandle* column_family,
92   Status Delete(const SliceParts& key) override { return Delete(nullptr, key); }  in Delete()
96   Status SingleDelete(ColumnFamilyHandle* column_family,
98   Status SingleDelete(const Slice& key) override {  in SingleDelete()
103   Status SingleDelete(ColumnFamilyHandle* column_family,
105   Status SingleDelete(const SliceParts& key) override {  in SingleDelete()
111   Status DeleteRange(ColumnFamilyHandle* column_family, const Slice& begin_key,
113   Status DeleteRange(const Slice& begin_key, const Slice& end_key) override {  in DeleteRange()
118   Status DeleteRange(ColumnFamilyHandle* column_family,
121   Status DeleteRange(const SliceParts& begin_key,  in DeleteRange()
129   Status Merge(ColumnFamilyHandle* column_family, const Slice& key,
131   Status Merge(const Slice& key, const Slice& value) override {  in Merge()
136   Status Merge(ColumnFamilyHandle* column_family, const SliceParts& key,
138   Status Merge(const SliceParts& key, const SliceParts& value) override {  in Merge()
153   Status PutLogData(const Slice& blob) override;
168   Status RollbackToSavePoint() override;
174   Status PopSavePoint() override;
187     virtual Status PutCF(uint32_t column_family_id, const Slice& key,  in PutCF()
194         return Status::OK();  in PutCF()
196       return Status::InvalidArgument(  in PutCF()
201     virtual Status DeleteCF(uint32_t column_family_id, const Slice& key) {  in DeleteCF()
204         return Status::OK();  in DeleteCF()
206       return Status::InvalidArgument(  in DeleteCF()
211     virtual Status SingleDeleteCF(uint32_t column_family_id, const Slice& key) {  in SingleDeleteCF()
214         return Status::OK();  in SingleDeleteCF()
216       return Status::InvalidArgument(  in SingleDeleteCF()
221     virtual Status DeleteRangeCF(uint32_t /*column_family_id*/,  in DeleteRangeCF()
224       return Status::InvalidArgument("DeleteRangeCF not implemented");  in DeleteRangeCF()
227     virtual Status MergeCF(uint32_t column_family_id, const Slice& key,  in MergeCF()
231         return Status::OK();  in MergeCF()
233       return Status::InvalidArgument(  in MergeCF()
238     virtual Status PutBlobIndexCF(uint32_t /*column_family_id*/,  in PutBlobIndexCF()
241       return Status::InvalidArgument("PutBlobIndexCF not implemented");  in PutBlobIndexCF()
247     virtual Status MarkBeginPrepare(bool = false) {
248       return Status::InvalidArgument("MarkBeginPrepare() handler not defined.");
251     virtual Status MarkEndPrepare(const Slice& /*xid*/) {  in MarkEndPrepare()
252       return Status::InvalidArgument("MarkEndPrepare() handler not defined.");  in MarkEndPrepare()
255     virtual Status MarkNoop(bool /*empty_batch*/) {  in MarkNoop()
256       return Status::InvalidArgument("MarkNoop() handler not defined.");  in MarkNoop()
259     virtual Status MarkRollback(const Slice& /*xid*/) {  in MarkRollback()
260       return Status::InvalidArgument(  in MarkRollback()
264     virtual Status MarkCommit(const Slice& /*xid*/) {  in MarkCommit()
265       return Status::InvalidArgument("MarkCommit() handler not defined.");  in MarkCommit()
278   Status Iterate(Handler* handler) const;
317   Status AssignTimestamp(const Slice& ts);
320   Status AssignTimestamps(const std::vector<Slice>& ts_list);