/Users/deen/code/yugabyte-db/src/yb/rocksdb/utilities/stackable_db.h

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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
//
// The following only applies to changes made to this file as part of YugaByte development.
//
// Portions Copyright (c) YugaByte, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
// in compliance with the License.  You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
// or implied.  See the License for the specific language governing permissions and limitations
// under the License.
//
#ifndef YB_ROCKSDB_UTILITIES_STACKABLE_DB_H
#define YB_ROCKSDB_UTILITIES_STACKABLE_DB_H

#pragma once
#include <string>
#include "yb/rocksdb/db.h"

#include "yb/util/result.h"

#ifdef _WIN32
// Windows API macro interference
#undef DeleteFile
#endif


namespace rocksdb {

// This class contains APIs to stack rocksdb wrappers.Eg. Stack TTL over base d
class StackableDB : public DB {
 public:
  // StackableDB is the owner of db now!
  explicit StackableDB(DB* db) : db_(db) {}

  ~StackableDB() {
    delete db_;
  }

  virtual DB* GetBaseDB() {
    return db_;
  }

  virtual DB* GetRootDB() override { return db_->GetRootDB(); }

  virtual Status CreateColumnFamily(const ColumnFamilyOptions& options,
                                    const std::string& column_family_name,
                                    ColumnFamilyHandle** handle) override {
    return db_->CreateColumnFamily(options, column_family_name, handle);
  }

  virtual Status DropColumnFamily(ColumnFamilyHandle* column_family) override {
    return db_->DropColumnFamily(column_family);
  }

  using DB::Put;
  virtual Status Put(const WriteOptions& options,
                     ColumnFamilyHandle* column_family, const Slice& key,
                     const Slice& val) override {
    return db_->Put(options, column_family, key, val);
  }

  using DB::Get;
  virtual Status Get(const ReadOptions& options,
                     ColumnFamilyHandle* column_family, const Slice& key,
                     std::string* value) override {
    return db_->Get(options, column_family, key, value);
  }

  using DB::MultiGet;
  virtual std::vector<Status> MultiGet(
      const ReadOptions& options,
      const std::vector<ColumnFamilyHandle*>& column_family,
      const std::vector<Slice>& keys,
      std::vector<std::string>* values) override {
    return db_->MultiGet(options, column_family, keys, values);
  }

  using DB::AddFile;
  virtual Status AddFile(ColumnFamilyHandle* column_family,
                         const ExternalSstFileInfo* file_info,
                         bool move_file) override {
    return db_->AddFile(column_family, file_info, move_file);
  }
  virtual Status AddFile(ColumnFamilyHandle* column_family,
                         const std::string& file_path,
                         bool move_file) override {
    return db_->AddFile(column_family, file_path, move_file);
  }

  using DB::KeyMayExist;
  virtual bool KeyMayExist(const ReadOptions& options,
                           ColumnFamilyHandle* column_family, const Slice& key,
                           std::string* value,
                           bool* value_found = nullptr) override {
    return db_->KeyMayExist(options, column_family, key, value, value_found);
  }

  using DB::Delete;
  virtual Status Delete(const WriteOptions& wopts,
                        ColumnFamilyHandle* column_family,
                        const Slice& key) override {
    return db_->Delete(wopts, column_family, key);
  }

  using DB::SingleDelete;
  virtual Status SingleDelete(const WriteOptions& wopts,
                              ColumnFamilyHandle* column_family,
                              const Slice& key) override {
    return db_->SingleDelete(wopts, column_family, key);
  }

  using DB::Merge;
  virtual Status Merge(const WriteOptions& options,
                       ColumnFamilyHandle* column_family, const Slice& key,
                       const Slice& value) override {
    return db_->Merge(options, column_family, key, value);
  }


  virtual Status Write(const WriteOptions& opts, WriteBatch* updates)
    override {
      return db_->Write(opts, updates);
  }

  using DB::NewIterator;
  virtual Iterator* NewIterator(const ReadOptions& opts,
                                ColumnFamilyHandle* column_family) override {
    return db_->NewIterator(opts, column_family);
  }

  virtual Status NewIterators(
      const ReadOptions& options,
      const std::vector<ColumnFamilyHandle*>& column_families,
      std::vector<Iterator*>* iterators) override {
    return db_->NewIterators(options, column_families, iterators);
  }


  virtual const Snapshot* GetSnapshot() override {
    return db_->GetSnapshot();
  }

  virtual void ReleaseSnapshot(const Snapshot* snapshot) override {
    return db_->ReleaseSnapshot(snapshot);
  }

  using DB::GetProperty;
  virtual bool GetProperty(ColumnFamilyHandle* column_family,
                           const Slice& property, std::string* value) override {
    return db_->GetProperty(column_family, property, value);
  }

  using DB::GetIntProperty;
  virtual bool GetIntProperty(ColumnFamilyHandle* column_family,
                              const Slice& property, uint64_t* value) override {
    return db_->GetIntProperty(column_family, property, value);
  }

  using DB::GetAggregatedIntProperty;
  virtual bool GetAggregatedIntProperty(const Slice& property,
                                        uint64_t* value) override {
    return db_->GetAggregatedIntProperty(property, value);
  }

  using DB::GetApproximateSizes;
  virtual void GetApproximateSizes(ColumnFamilyHandle* column_family,
                                   const Range* r, int n, uint64_t* sizes,
                                   bool include_memtable = false) override {
    return db_->GetApproximateSizes(column_family, r, n, sizes,
                                    include_memtable);
  }

  using DB::CompactRange;
  virtual Status CompactRange(const CompactRangeOptions& options,
                              ColumnFamilyHandle* column_family,
                              const Slice* begin, const Slice* end) override {
    return db_->CompactRange(options, column_family, begin, end);
  }

  using DB::CompactFiles;
  virtual Status CompactFiles(
      const CompactionOptions& compact_options,
      ColumnFamilyHandle* column_family,
      const std::vector<std::string>& input_file_names,
      const int output_level, const int output_path_id = -1) override {
    return db_->CompactFiles(
        compact_options, column_family, input_file_names,
        output_level, output_path_id);
  }

  virtual Status PauseBackgroundWork() override {
    return db_->PauseBackgroundWork();
  }
  virtual Status ContinueBackgroundWork() override {
    return db_->ContinueBackgroundWork();
  }

  virtual Status EnableAutoCompaction(
      const std::vector<ColumnFamilyHandle*>& column_family_handles) override {
    return db_->EnableAutoCompaction(column_family_handles);
  }

  using DB::NumberLevels;
  virtual int NumberLevels(ColumnFamilyHandle* column_family) override {
    return db_->NumberLevels(column_family);
  }

  using DB::MaxMemCompactionLevel;
  virtual int MaxMemCompactionLevel(ColumnFamilyHandle* column_family)
      override {
    return db_->MaxMemCompactionLevel(column_family);
  }

  using DB::Level0StopWriteTrigger;
  virtual int Level0StopWriteTrigger(ColumnFamilyHandle* column_family)
      override {
    return db_->Level0StopWriteTrigger(column_family);
  }

  virtual const std::string& GetName() const override {
    return db_->GetName();
  }

  virtual Env* GetEnv() const override {
    return db_->GetEnv();
  }

  Env* GetCheckpointEnv() const override {
    return db_->GetCheckpointEnv();
  }

  using DB::GetOptions;
  virtual const Options& GetOptions(ColumnFamilyHandle* column_family) const
      override {
    return db_->GetOptions(column_family);
  }

  using DB::GetDBOptions;
  virtual const DBOptions& GetDBOptions() const override {
    return db_->GetDBOptions();
  }

  using DB::Flush;
  virtual Status Flush(const FlushOptions& fopts,
                       ColumnFamilyHandle* column_family) override {
    return db_->Flush(fopts, column_family);
  }

  using DB::WaitForFlush;
  virtual Status WaitForFlush(ColumnFamilyHandle* column_family) override {
    return db_->WaitForFlush(column_family);
  }

  virtual Status SyncWAL() override {
    return db_->SyncWAL();
  }

#ifndef ROCKSDB_LITE

  virtual Status DisableFileDeletions() override {
    return db_->DisableFileDeletions();
  }

  virtual Status EnableFileDeletions(bool force) override {
    return db_->EnableFileDeletions(force);
  }

  void GetLiveFilesMetaData(std::vector<LiveFileMetaData>* metadata) override {
    db_->GetLiveFilesMetaData(metadata);
  }

  UserFrontierPtr GetFlushedFrontier() override {
    return db_->GetFlushedFrontier();
  }

  CHECKED_STATUS ModifyFlushedFrontier(
      UserFrontierPtr values,
      FrontierModificationMode mode) override {
    return db_->ModifyFlushedFrontier(std::move(values), mode);
  }

  yb::Result<std::string> GetMiddleKey() override {
    return db_->GetMiddleKey();
  };

  virtual void GetColumnFamilyMetaData(
      ColumnFamilyHandle *column_family,
      ColumnFamilyMetaData* cf_meta) override {
    db_->GetColumnFamilyMetaData(column_family, cf_meta);
  }

  virtual void GetColumnFamiliesOptions(
      std::vector<std::string>* column_family_names,
      std::vector<ColumnFamilyOptions>* column_family_options) override {
    db_->GetColumnFamiliesOptions(column_family_names, column_family_options);
  }

#endif  // ROCKSDB_LITE

  virtual Status GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
                              bool flush_memtable = true) override {
      return db_->GetLiveFiles(vec, mfs, flush_memtable);
  }

  virtual SequenceNumber GetLatestSequenceNumber() const override {
    return db_->GetLatestSequenceNumber();
  }

  virtual Status GetSortedWalFiles(VectorLogPtr* files) override {
    return db_->GetSortedWalFiles(files);
  }

  virtual Status DeleteFile(std::string name) override {
    return db_->DeleteFile(name);
  }

  virtual Status GetDbIdentity(std::string* identity) const override {
    return db_->GetDbIdentity(identity);
  }

  using DB::SetOptions;
  virtual Status SetOptions(ColumnFamilyHandle* column_family_handle,
                            const std::unordered_map<std::string, std::string>& new_options,
                            bool dump_options) override {
    return db_->SetOptions(column_family_handle, new_options, dump_options);
  }

  using DB::GetPropertiesOfAllTables;
  virtual Status GetPropertiesOfAllTables(
      ColumnFamilyHandle* column_family,
      TablePropertiesCollection* props) override {
    return db_->GetPropertiesOfAllTables(column_family, props);
  }

  using DB::GetPropertiesOfTablesInRange;
  virtual Status GetPropertiesOfTablesInRange(
      ColumnFamilyHandle* column_family, const Range* range, std::size_t n,
      TablePropertiesCollection* props) override {
    return db_->GetPropertiesOfTablesInRange(column_family, range, n, props);
  }

  virtual Status GetUpdatesSince(
      SequenceNumber seq_number, unique_ptr<TransactionLogIterator>* iter,
      const TransactionLogIterator::ReadOptions& read_options) override {
    return db_->GetUpdatesSince(seq_number, iter, read_options);
  }

  virtual ColumnFamilyHandle* DefaultColumnFamily() const override {
    return db_->DefaultColumnFamily();
  }

 protected:
  DB* db_;
};

} //  namespace rocksdb

#endif // YB_ROCKSDB_UTILITIES_STACKABLE_DB_H

YugabyteDB (2.13.1.0-b60, 21121d69985fbf76aa6958d8f04a9bfa936293b5)

Coverage Report

Created: 2022-03-22 16:43

Line	Count	Source (jump to first uncovered line)
1		// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
2		// Use of this source code is governed by a BSD-style license that can be
3		// found in the LICENSE file. See the AUTHORS file for names of contributors.
4		//
5		// The following only applies to changes made to this file as part of YugaByte development.
6		//
7		// Portions Copyright (c) YugaByte, Inc.
8		//
9		// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
10		// in compliance with the License. You may obtain a copy of the License at
11		//
12		// http://www.apache.org/licenses/LICENSE-2.0
13		//
14		// Unless required by applicable law or agreed to in writing, software distributed under the License
15		// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
16		// or implied. See the License for the specific language governing permissions and limitations
17		// under the License.
18		//
19		#ifndef YB_ROCKSDB_UTILITIES_STACKABLE_DB_H
20		#define YB_ROCKSDB_UTILITIES_STACKABLE_DB_H
21
22		#pragma once
23		#include <string>
24		#include "yb/rocksdb/db.h"
25
26		#include "yb/util/result.h"
27
28		#ifdef _WIN32
29		// Windows API macro interference
30		#undef DeleteFile
31		#endif
32
33
34		namespace rocksdb {
35
36		// This class contains APIs to stack rocksdb wrappers.Eg. Stack TTL over base d
37		class StackableDB : public DB {
38		public:
39		// StackableDB is the owner of db now!
40	89	explicit StackableDB(DB* db) : db_(db) {}
41
42	89	~StackableDB() {
43	89	delete db_;
44	89	}
45
46	3.19k	virtual DB* GetBaseDB() {
47	3.19k	return db_;
48	3.19k	}
49
50	0	virtual DB* GetRootDB() override { return db_->GetRootDB(); }
51
52		virtual Status CreateColumnFamily(const ColumnFamilyOptions& options,
53		const std::string& column_family_name,
54	5	ColumnFamilyHandle** handle) override {
55	5	return db_->CreateColumnFamily(options, column_family_name, handle);
56	5	}
57
58	1	virtual Status DropColumnFamily(ColumnFamilyHandle* column_family) override {
59	1	return db_->DropColumnFamily(column_family);
60	1	}
61
62		using DB::Put;
63		virtual Status Put(const WriteOptions& options,
64		ColumnFamilyHandle* column_family, const Slice& key,
65	0	const Slice& val) override {
66	0	return db_->Put(options, column_family, key, val);
67	0	}
68
69		using DB::Get;
70		virtual Status Get(const ReadOptions& options,
71		ColumnFamilyHandle* column_family, const Slice& key,
72	91	std::string* value) override {
73	91	return db_->Get(options, column_family, key, value);
74	91	}
75
76		using DB::MultiGet;
77		virtual std::vector<Status> MultiGet(
78		const ReadOptions& options,
79		const std::vector<ColumnFamilyHandle*>& column_family,
80		const std::vector<Slice>& keys,
81	0	std::vector<std::string>* values) override {
82	0	return db_->MultiGet(options, column_family, keys, values);
83	0	}
84
85		using DB::AddFile;
86		virtual Status AddFile(ColumnFamilyHandle* column_family,
87		const ExternalSstFileInfo* file_info,
88	0	bool move_file) override {
89	0	return db_->AddFile(column_family, file_info, move_file);
90	0	}
91		virtual Status AddFile(ColumnFamilyHandle* column_family,
92		const std::string& file_path,
93	0	bool move_file) override {
94	0	return db_->AddFile(column_family, file_path, move_file);
95	0	}
96
97		using DB::KeyMayExist;
98		virtual bool KeyMayExist(const ReadOptions& options,
99		ColumnFamilyHandle* column_family, const Slice& key,
100		std::string* value,
101	0	bool* value_found = nullptr) override {
102	0	return db_->KeyMayExist(options, column_family, key, value, value_found);
103	0	}
104
105		using DB::Delete;
106		virtual Status Delete(const WriteOptions& wopts,
107		ColumnFamilyHandle* column_family,
108	4	const Slice& key) override {
109	4	return db_->Delete(wopts, column_family, key);
110	4	}
111
112		using DB::SingleDelete;
113		virtual Status SingleDelete(const WriteOptions& wopts,
114		ColumnFamilyHandle* column_family,
115	3	const Slice& key) override {
116	3	return db_->SingleDelete(wopts, column_family, key);
117	3	}
118
119		using DB::Merge;
120		virtual Status Merge(const WriteOptions& options,
121		ColumnFamilyHandle* column_family, const Slice& key,
122	0	const Slice& value) override {
123	0	return db_->Merge(options, column_family, key, value);
124	0	}
125
126
127		virtual Status Write(const WriteOptions& opts, WriteBatch* updates)
128	26	override {
129	26	return db_->Write(opts, updates);
130	26	}
131
132		using DB::NewIterator;
133		virtual Iterator* NewIterator(const ReadOptions& opts,
134	9	ColumnFamilyHandle* column_family) override {
135	9	return db_->NewIterator(opts, column_family);
136	9	}
137
138		virtual Status NewIterators(
139		const ReadOptions& options,
140		const std::vector<ColumnFamilyHandle*>& column_families,
141	15	std::vector<Iterator> iterators) override {
142	15	return db_->NewIterators(options, column_families, iterators);
143	15	}
144
145
146	0	virtual const Snapshot* GetSnapshot() override {
147	0	return db_->GetSnapshot();
148	0	}
149
150	0	virtual void ReleaseSnapshot(const Snapshot* snapshot) override {
151	0	return db_->ReleaseSnapshot(snapshot);
152	0	}
153
154		using DB::GetProperty;
155		virtual bool GetProperty(ColumnFamilyHandle* column_family,
156	0	const Slice& property, std::string* value) override {
157	0	return db_->GetProperty(column_family, property, value);
158	0	}
159
160		using DB::GetIntProperty;
161		virtual bool GetIntProperty(ColumnFamilyHandle* column_family,
162	0	const Slice& property, uint64_t* value) override {
163	0	return db_->GetIntProperty(column_family, property, value);
164	0	}
165
166		using DB::GetAggregatedIntProperty;
167		virtual bool GetAggregatedIntProperty(const Slice& property,
168	0	uint64_t* value) override {
169	0	return db_->GetAggregatedIntProperty(property, value);
170	0	}
171
172		using DB::GetApproximateSizes;
173		virtual void GetApproximateSizes(ColumnFamilyHandle* column_family,
174		const Range* r, int n, uint64_t* sizes,
175	0	bool include_memtable = false) override {
176	0	return db_->GetApproximateSizes(column_family, r, n, sizes,
177	0	include_memtable);
178	0	}
179
180		using DB::CompactRange;
181		virtual Status CompactRange(const CompactRangeOptions& options,
182		ColumnFamilyHandle* column_family,
183	31	const Slice* begin, const Slice* end) override {
184	31	return db_->CompactRange(options, column_family, begin, end);
185	31	}
186
187		using DB::CompactFiles;
188		virtual Status CompactFiles(
189		const CompactionOptions& compact_options,
190		ColumnFamilyHandle* column_family,
191		const std::vector<std::string>& input_file_names,
192	0	const int output_level, const int output_path_id = -1) override {
193	0	return db_->CompactFiles(
194	0	compact_options, column_family, input_file_names,
195	0	output_level, output_path_id);
196	0	}
197
198	0	virtual Status PauseBackgroundWork() override {
199	0	return db_->PauseBackgroundWork();
200	0	}
201	0	virtual Status ContinueBackgroundWork() override {
202	0	return db_->ContinueBackgroundWork();
203	0	}
204
205		virtual Status EnableAutoCompaction(
206	47	const std::vector<ColumnFamilyHandle*>& column_family_handles) override {
207	47	return db_->EnableAutoCompaction(column_family_handles);
208	47	}
209
210		using DB::NumberLevels;
211	0	virtual int NumberLevels(ColumnFamilyHandle* column_family) override {
212	0	return db_->NumberLevels(column_family);
213	0	}
214
215		using DB::MaxMemCompactionLevel;
216		virtual int MaxMemCompactionLevel(ColumnFamilyHandle* column_family)
217	0	override {
218	0	return db_->MaxMemCompactionLevel(column_family);
219	0	}
220
221		using DB::Level0StopWriteTrigger;
222		virtual int Level0StopWriteTrigger(ColumnFamilyHandle* column_family)
223	0	override {
224	0	return db_->Level0StopWriteTrigger(column_family);
225	0	}
226
227	0	virtual const std::string& GetName() const override {
228	0	return db_->GetName();
229	0	}
230
231	12.2k	virtual Env* GetEnv() const override {
232	12.2k	return db_->GetEnv();
233	12.2k	}
234
235	0	Env* GetCheckpointEnv() const override {
236	0	return db_->GetCheckpointEnv();
237	0	}
238
239		using DB::GetOptions;
240		virtual const Options& GetOptions(ColumnFamilyHandle* column_family) const
241	37	override {
242	37	return db_->GetOptions(column_family);
243	37	}
244
245		using DB::GetDBOptions;
246	0	virtual const DBOptions& GetDBOptions() const override {
247	0	return db_->GetDBOptions();
248	0	}
249
250		using DB::Flush;
251		virtual Status Flush(const FlushOptions& fopts,
252	24	ColumnFamilyHandle* column_family) override {
253	24	return db_->Flush(fopts, column_family);
254	24	}
255
256		using DB::WaitForFlush;
257	0	virtual Status WaitForFlush(ColumnFamilyHandle* column_family) override {
258	0	return db_->WaitForFlush(column_family);
259	0	}
260
261	0	virtual Status SyncWAL() override {
262	0	return db_->SyncWAL();
263	0	}
264
265		#ifndef ROCKSDB_LITE
266
267	0	virtual Status DisableFileDeletions() override {
268	0	return db_->DisableFileDeletions();
269	0	}
270
271	0	virtual Status EnableFileDeletions(bool force) override {
272	0	return db_->EnableFileDeletions(force);
273	0	}
274
275	0	void GetLiveFilesMetaData(std::vector<LiveFileMetaData>* metadata) override {
276	0	db_->GetLiveFilesMetaData(metadata);
277	0	}
278
279	0	UserFrontierPtr GetFlushedFrontier() override {
280	0	return db_->GetFlushedFrontier();
281	0	}
282
283		CHECKED_STATUS ModifyFlushedFrontier(
284		UserFrontierPtr values,
285	0	FrontierModificationMode mode) override {
286	0	return db_->ModifyFlushedFrontier(std::move(values), mode);
287	0	}
288
289	0	yb::Result<std::string> GetMiddleKey() override {
290	0	return db_->GetMiddleKey();
291	0	};
292
293		virtual void GetColumnFamilyMetaData(
294		ColumnFamilyHandle *column_family,
295	0	ColumnFamilyMetaData* cf_meta) override {
296	0	db_->GetColumnFamilyMetaData(column_family, cf_meta);
297	0	}
298
299		virtual void GetColumnFamiliesOptions(
300		std::vector<std::string>* column_family_names,
301	0	std::vector<ColumnFamilyOptions>* column_family_options) override {
302	0	db_->GetColumnFamiliesOptions(column_family_names, column_family_options);
303	0	}
304
305		#endif // ROCKSDB_LITE
306
307		virtual Status GetLiveFiles(std::vector<std::string>& vec, uint64_t* mfs,
308	0	bool flush_memtable = true) override {
309	0	return db_->GetLiveFiles(vec, mfs, flush_memtable);
310	0	}
311
312	0	virtual SequenceNumber GetLatestSequenceNumber() const override {
313	0	return db_->GetLatestSequenceNumber();
314	0	}
315
316	0	virtual Status GetSortedWalFiles(VectorLogPtr* files) override {
317	0	return db_->GetSortedWalFiles(files);
318	0	}
319
320	0	virtual Status DeleteFile(std::string name) override {
321	0	return db_->DeleteFile(name);
322	0	}
323
324	0	virtual Status GetDbIdentity(std::string* identity) const override {
325	0	return db_->GetDbIdentity(identity);
326	0	}
327
328		using DB::SetOptions;
329		virtual Status SetOptions(ColumnFamilyHandle* column_family_handle,
330		const std::unordered_map<std::string, std::string>& new_options,
331	0	bool dump_options) override {
332	0	return db_->SetOptions(column_family_handle, new_options, dump_options);
333	0	}
334
335		using DB::GetPropertiesOfAllTables;
336		virtual Status GetPropertiesOfAllTables(
337		ColumnFamilyHandle* column_family,
338	0	TablePropertiesCollection* props) override {
339	0	return db_->GetPropertiesOfAllTables(column_family, props);
340	0	}
341
342		using DB::GetPropertiesOfTablesInRange;
343		virtual Status GetPropertiesOfTablesInRange(
344		ColumnFamilyHandle* column_family, const Range* range, std::size_t n,
345	0	TablePropertiesCollection* props) override {
346	0	return db_->GetPropertiesOfTablesInRange(column_family, range, n, props);
347	0	}
348
349		virtual Status GetUpdatesSince(
350		SequenceNumber seq_number, unique_ptr<TransactionLogIterator>* iter,
351	0	const TransactionLogIterator::ReadOptions& read_options) override {
352	0	return db_->GetUpdatesSince(seq_number, iter, read_options);
353	0	}
354
355	7.43k	virtual ColumnFamilyHandle* DefaultColumnFamily() const override {
356	7.43k	return db_->DefaultColumnFamily();
357	7.43k	}
358
359		protected:
360		DB* db_;
361		};
362
363		} // namespace rocksdb
364
365		#endif // YB_ROCKSDB_UTILITIES_STACKABLE_DB_H