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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
6
|
第
1
章
分布式
对象存储
……
图
1-3
:
Presto
对多种数据源的
SQL
支持
对象存储系统包括
AmazonWeb
Services
(
AWS
)提供的
Simple
Storage
Service
(
S3
)、
MicrosoftAzure
Blob
Storage
、
Google
Cloud
Storage
和
S3
兼容的存储系统(如
MinIO
和
Ceph
)。
Presto
可以查询传统的
RDBMS
,如
Microsoft
SQL
Server
、
PostgreSQL
、
MySQL
、
Oracle
、
T
eradata
和
Amazon
Redshift
,还可以查询
NoSQL
数据库系统,如
Apache
Cassandra
、
Apache
Kafka
、
MongoDB
和
Elasticsearch
。
Presto
几乎可以查询任何东西,是
一个真正的
SQL-on-Anything
系统。
对于用户来说,这意味着他们在与特定系统内的数据进行交互时,无须再依赖特定的查询
语言和工具。他们可以简单地利用
Presto
和已有的
SQL
技能
,利用已经十分熟悉的基于
SQL
的数据分析
、仪表盘和报表工具,查询那些之前被锁定在分离系统中的数据。有了
Presto
,用户甚至可以执行跨越多个系统的
SQL
查询。
1.2.3
存储与计算分离
Presto
没有自己的存储,它只是在数据所在之处进行查询处理。使用
Presto
时,存储和计算
是分离的,它们可以各自独立地扩展。
Presto
代表计算层,底层的数据源代表存储层。
这使得
Presto
可以
基于对数据的分析需求来扩展和缩减计算资源。你无须移动数据或根 ...
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Publisher Resources
ISBN: 9787115560056