RocksDB v4.1.0 Release Notes
Release Date: 2015-10-08 // over 8 years ago-
๐ New Features
- โ Added single delete operation as a more efficient way to delete keys that have not been overwritten.
- Added experimental AddFile() to DB interface that allow users to add files created by SstFileWriter into an empty Database, see include/rocksdb/sst_file_writer.h and DB::AddFile() for more info.
- โ Added support for opening SST files with .ldb suffix which enables opening LevelDB databases.
- ๐ CompactionFilter now supports filtering of merge operands and merge results.
Public API Changes
- โ Added SingleDelete() to the DB interface.
- โ Added AddFile() to DB interface.
- โ Added SstFileWriter class.
- ๐ CompactionFilter has a new method FilterMergeOperand() that RocksDB applies to every merge operand during compaction to decide whether to filter the operand.
- ๐ We removed CompactionFilterV2 interfaces from include/rocksdb/compaction_filter.h. The functionality was deprecated already in version 3.13.