March 2021
Intermediate to advanced
265 pages
6h 50m
Chinese
Content preview from Presto实战
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16
第 2 章
安装和配置
Presto
在第
1
章中，你了解了
Presto
及其可能的使用场景，现在可以开始尝试了。在本章中，你
将了解如何安装
Presto
、配置数据源并查询数据。
2.1
使用
Docker
容器尝试
Presto
Presto
项目提供了
Docker
容器，便于启动配置好的
Presto
演示环境，用于初步了解并探
索
Presto
。
要在
Docker
里运行
Presto
，需要先在机器上安装
Docker
，这可以从
Docker
的官方网站下
载，或使用操作系统所提供的包管理系统。
使用
docker
命令下载容器镜像，将其命名为
presto-trial
并保存在本地，然后在后台运
行它：
docker run -d --name presto-trial prestosql/presto
现在让我们连接到容器内，并使用
Presto
命令行界面（
CLI
）执行
presto
命令。这会连接
到同一容器里运行着的
Presto
服务器。接下来，
在命令提示行中可以执行一个在
TPC-H
基
准测试数据表上的查询。
$ docker exec -it presto-trial presto
presto> select count(*) from tpch.sf1.nation;
_col0
-------
25
(1 row)
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.