a5e220f5ef
Conflicts: Makefile db/db_impl.cc db/db_test.cc db/memtable_list.cc db/memtable_list.h table/block_based_table_reader.cc table/table_test.cc util/cache.cc util/coding.cc
31 lines
1.1 KiB
C++
31 lines
1.1 KiB
C++
// Copyright (c) 2013, 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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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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namespace rocksdb {
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class Comparator;
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class Iterator;
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class Env;
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// Return an iterator that provided the union of the data in
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// children[0,n-1]. Takes ownership of the child iterators and
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// will delete them when the result iterator is deleted.
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//
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// The result does no duplicate suppression. I.e., if a particular
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// key is present in K child iterators, it will be yielded K times.
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//
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// REQUIRES: n >= 0
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extern Iterator* NewMergingIterator(Env* const env,
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const Comparator* comparator,
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Iterator** children, int n);
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} // namespace rocksdb
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