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修复 ch1 中的无序列表格式 #42

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8 changes: 4 additions & 4 deletions ch1.md
Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,10 @@

数据密集型应用通常由标准组件构建而成,标准组件提供了很多通用的功能;例如,许多应用程序都需要:

- 存储数据,以便自己或其他应用程序之后能再次找到 (***(数据库(database))***)
- 记住开销昂贵操作的结果,加快读取速度(***缓存(cache)***)
- 允许用户按关键字搜索数据,或以各种方式对数据进行过滤(***搜索索引(search indexes)***)
- 向其他进程发送消息,进行异步处理(***流处理(stream processing)***)
- 存储数据,以便自己或其他应用程序之后能再次找到 (***(数据库(database))***)
- 记住开销昂贵操作的结果,加快读取速度(***缓存(cache)***)
- 允许用户按关键字搜索数据,或以各种方式对数据进行过滤(***搜索索引(search indexes)***)
- 向其他进程发送消息,进行异步处理(***流处理(stream processing)***)
- 定期处理累积的大批量数据(***批处理(batch processing)***)

​如果这些功能听上去平淡无奇,那是因为这些 **数据系统(data system)** 是非常成功的抽象:我们一直不假思索地使用它们并习以为常。绝大多数工程师不会幻想从零开始编写存储引擎,因为在开发应用时,数据库已经是足够完美的工具了。
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