Update History.md for SingleDelete with user defined timestamp (#8964)

Summary:
Update History.md for SingleDelete with user defined timestamp

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8964

Reviewed By: zhichao-cao

Differential Revision: D31216214

Pulled By: akankshamahajan15

fbshipit-source-id: 0520132c75fe8f6823d154e41585b0df3086c04d
This commit is contained in:
Akanksha Mahajan 2021-09-27 14:57:08 -07:00 committed by Facebook GitHub Bot
parent 78afb4d81e
commit a2f29ce70a
1 changed files with 3 additions and 0 deletions

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## Unreleased
### Bug Fixes
* Fixes a bug in directed IO mode when calling MultiGet() for blobs in the same blob file. The bug is caused by not sorting the blob read requests by file offsets.
### New Features
* Provided support for SingleDelete with user defined timestamp.
### Public API change
* Made SystemClock extend the Customizable class and added a CreateFromString method. Implementations need to be registered with the ObjectRegistry and to implement a Name() method in order to be created via this method.
* Made SliceTransform extend the Customizable class and added a CreateFromString method. Implementations need to be registered with the ObjectRegistry and to implement a Name() method in order to be created via this method. The Capped and Prefixed transform classes return a short name (no length); use GetId for the fully qualified name.