maokaihe/mini_lsm
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix typos in W3D5 writeup and code (#67)

Browse Source
This commit is contained in:
Yue Yin
2024-03-24 15:23:39 -04:00
committed by GitHub
parent 621d7a8cf3
commit afe6c9549d
3 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mini-lsm-book/src/week3-05-txn-occ.md
View File

@@ -27,7 +27,7 @@ In this task, you will need to modify:
src/txn.rs
```
For `get`, you should first probe the local storage. If a value is found, return the value or `None` depending on whether it is a deletion marker. For `scan`, you will need to implement a `TxnLocalIterator` for the skiplist as in chapter 1.1 when you implement the iterator for a memtable without key timestamp. You will need to store a `TwoMergeIterator<TxnLocalIterator, FusedIterator<LsmIterator>>` in the `TxnLocalIterator`. And, lastly, given that the `TwoMergeIterator` will retain the deletion markers in the child iterators, you will need to modify your `TxnIterator` implementation to correctly handle deletions.
For `get`, you should first probe the local storage. If a value is found, return the value or `None` depending on whether it is a deletion marker. For `scan`, you will need to implement a `TxnLocalIterator` for the skiplist as in chapter 1.1 when you implement the iterator for a memtable without key timestamp. You will need to store a `TwoMergeIterator<TxnLocalIterator, FusedIterator<LsmIterator>>` in the `TxnIterator`. And, lastly, given that the `TwoMergeIterator` will retain the deletion markers in the child iterators, you will need to modify your `TxnIterator` implementation to correctly handle deletions.
## Task 3: Commit