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reorganize history.md to list unreleased changes separately

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Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5216

Differential Revision: D15003749

Pulled By: miasantreble

fbshipit-source-id: a52c264e694cd7c55813be33ee22b4f3046b545a
This commit is contained in:
Zhongyi Xie 2019-04-18 14:52:54 -07:00 committed by Facebook Github Bot
parent d6862b3f51
commit 3bdce20e2b
1 changed files with 10 additions and 4 deletions
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HISTORY.md
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# Rocksdb Change Log # Rocksdb Change Log
### Unreleased
### New Features
* Improve range scan performance by avoiding per-key upper bound check in BlockBasedTableIterator.
### Public API Change
* Added BottommostLevelCompaction::kForceOptimized to avoid double compacting newly compacted files in bottom level compaction of manual compaction.
### Bug Fixes
* Adjust WriteBufferManager's dummy entry size to block cache from 1MB to 256KB.
## 6.1.1 (4/9/2019) ## 6.1.1 (4/9/2019)
### New Features ### New Features
* When reading from option file/string/map, customized comparators and/or merge operators can be filled according to object registry. * When reading from option file/string/map, customized comparators and/or merge operators can be filled according to object registry.
* Introduce Periodic Compaction for Level style compaction. Files are re-compacted periodically and put in the same level. * Introduce Periodic Compaction for Level style compaction. Files are re-compacted periodically and put in the same level.
* Improve range scan performance by avoiding per-key upper bound check in BlockBasedTableIterator.
### Public API Change ### Public API Change
* Change the behavior of OptimizeForPointLookup(): move away from hash-based block-based-table index, and use whole key memtable filtering. * Change the behavior of OptimizeForPointLookup(): move away from hash-based block-based-table index, and use whole key memtable filtering.
* Change the behavior of OptimizeForSmallDb(): use a 16MB block cache, put index and filter blocks into it, and cost the memtable size to it. DBOptions.OptimizeForSmallDb() and ColumnFamilyOptions.OptimizeForSmallDb() start to take an optional cache object. * Change the behavior of OptimizeForSmallDb(): use a 16MB block cache, put index and filter blocks into it, and cost the memtable size to it. DBOptions.OptimizeForSmallDb() and ColumnFamilyOptions.OptimizeForSmallDb() start to take an optional cache object.
* Added BottommostLevelCompaction::kForceOptimized to avoid double compacting newly compacted files in bottom level compaction of manual compaction.
### Bug Fixes ### Bug Fixes
* Fix a bug in 2PC where a sequence of txn prepare, memtable flush, and crash could result in losing the prepared transaction. * Fix a bug in 2PC where a sequence of txn prepare, memtable flush, and crash could result in losing the prepared transaction.
* Fix a bug in Encryption Env which could cause encrypted files to be read beyond file boundaries. * Fix a bug in Encryption Env which could cause encrypted files to be read beyond file boundaries.
* Fix a race condition between WritePrepared::Get and ::Put with duplicate keys. * Fix a race condition between WritePrepared::Get and ::Put with duplicate keys.
* Fix crash when memtable prefix bloom is enabled and read/write a key out of domain of prefix extractor. * Fix crash when memtable prefix bloom is enabled and read/write a key out of domain of prefix extractor.
* Adjust WriteBufferManager's dummy entry size to block cache from 1MB to 256KB.
## 6.1.0 (3/27/2019) ## 6.1.0 (3/27/2019)
### New Features ### New Features