diff options
Diffstat (limited to 'src/rocksdb/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc')
-rw-r--r-- | src/rocksdb/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc b/src/rocksdb/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc new file mode 100644 index 000000000..b788dbf9b --- /dev/null +++ b/src/rocksdb/utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc @@ -0,0 +1,26 @@ +// 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). + +#ifndef ROCKSDB_LITE + +#include "utilities/compaction_filters/remove_emptyvalue_compactionfilter.h" + +#include <string> + +#include "rocksdb/slice.h" + +namespace ROCKSDB_NAMESPACE { + +bool RemoveEmptyValueCompactionFilter::Filter(int /*level*/, + const Slice& /*key*/, + const Slice& existing_value, + std::string* /*new_value*/, + bool* /*value_changed*/) const { + // remove kv pairs that have empty values + return existing_value.empty(); +} + +} // namespace ROCKSDB_NAMESPACE +#endif // !ROCKSDB_LITE |