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4e20c5da20
Summary: This fixes a correctness issue where ranges with same begin key would overwrite each other. This diff uses InternalKey as TombstoneMap's key such that all tombstones have unique keys even when their start keys overlap. We also update TombstoneMap to use an internal key comparator. End-to-end tests pass and are here (https://gist.github.com/ajkr/851ffe4c1b8a15a68d33025be190a7d9) but cannot be included yet since the DeleteRange() API is yet to be checked in. Note both tests failed before this fix. Closes https://github.com/facebook/rocksdb/pull/1484 Differential Revision: D4155248 Pulled By: ajkr fbshipit-source-id: 304b4b9
35 lines
947 B
C++
35 lines
947 B
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#include <map>
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#include <string>
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#include "rocksdb/comparator.h"
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#include "rocksdb/slice.h"
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#include "util/coding.h"
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#include "util/murmurhash.h"
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namespace rocksdb {
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namespace stl_wrappers {
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struct LessOfComparator {
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explicit LessOfComparator(const Comparator* c = BytewiseComparator())
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: cmp(c) {}
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bool operator()(const std::string& a, const std::string& b) const {
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return cmp->Compare(Slice(a), Slice(b)) < 0;
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}
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bool operator()(const Slice& a, const Slice& b) const {
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return cmp->Compare(a, b) < 0;
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}
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const Comparator* cmp;
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};
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typedef std::map<std::string, std::string, LessOfComparator> KVMap;
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}
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}
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