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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#include <string>
#include "rocksdb/options.h"
#include "rocksdb/status.h"
namespace ROCKSDB_NAMESPACE {
// Try to migrate DB created with old_opts to be use new_opts.
// Multiple column families is not supported.
// It is best-effort. No guarantee to succeed.
// A full compaction may be executed.
// If the target options use FIFO compaction, the FIFO condition might be
// sacrificed: for data migrated, data inserted later might be dropped
// earlier. This is to gurantee FIFO compaction won't drop all the
// migrated data to fit max_table_files_size.
Status OptionChangeMigration(std::string dbname, const Options& old_opts,
const Options& new_opts);
} // namespace ROCKSDB_NAMESPACE
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