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O'Reilly Platform
book
Presto实战
by
Matt Fuller
,
Manfred Moser
,
Martin Traverso
March 2021
Intermediate to advanced
265 pages
6h 50m
Chinese
Posts & Telecom Press
Content preview from
Presto实战
3
第
1
章
Presto
介绍
你也许听说过
Presto
1
,然后找到了本书,抑或只想浏览第
1
章的内容,以便决定是否继
续研读。本章将讨论快速增长的海量数据带来的诸多问题,以及隐藏在这些数据中的价
值。
Presto
是处理这些数据的关键工具
,让你可以使用已证明十分成功的结构化查询语言
(
structuredquerylanguage
,
SQL
)及其相关工具来访问数据。
Presto
的设计和特性能让你更深入地理解数据
。你不但可以更快地获得见解,而且还可以
获得之前因成本太高或耗时太长而无法获得的信息。同时,你使用了更少的资源并因此节
省了预算。利用节省下来的资源,你还能从数据中获得更多见解!
虽然本书也会介绍很多外部资源,但我们希望你可以先从本书开始学习。
1.1
大数据带来的问题
每个人都在采集越来越多的数据,这些数据涉及设备指标、用户行为跟踪、商业交易、地
理位置、软件及系统测试过程和工作流等。通过理解和使用这些数据所获得的洞见能够决
定一项计划乃至一家公司的成败。
同时,数据存储机制日益多样:关系数据库、
NoSQL
数据库
、文档数据库、键值存储和对
象存储系统等。对于当今的组织机构,它们当中很多是必备的,只使用其中一种系统不再
可行了。应对如图
1-1
所示的情形是一项令人生畏的艰巨任务。
注
1
:
Presto
包含两个分支:
PrestoDB
和
PrestoSQL
。
2020
年
12
月,
PrestoSQL
正式更名为
Trino
。本书内
容适用于所有
Presto
分支。——编者注
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Publisher Resources
ISBN: 9787115560056