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Presto sql client. Worker Nodes (👷,👷,👷) .

Presto sql client The Best Presto Client for teams Write queries, visualize data, and share your results. NullFloat64 map , presto. 58 Presto Presto Clients Presto Clients. 2 Client Interfaces, Parsing, and Planning. 1 Presto概念 Presto是 Facebook 推出的一个开源的分布式SQL查询引擎,数据规模可以支持GB到PB级,主要应用于处理秒级查询的场景。Presto 的设计和编写完全是为了解决像 Facebook 这样规模的商业数据仓库的交互式分析和处理速度的问题。. DBVISUALIZER OFFERS SUPPORT FOR OBJECT TYPES AND OBJECT ACTIONS SPECIFIC TO PRESTO. 图 1 Presto 架构图. The Presto client can be a command line interface or a GUI tool such as Presto CLI or SQL Workbench. 24 forks. 286. Presto Client CLI. Client for Presto (https://prestodb. 不管是 Presto DB 还是 Presto SQL,它们”本是同根生“,因此它们的大部分的机制原理是一样的。 如上图所示,Presto 主要是由 Client、Coordinator、Worker 以及 Connector 等几部分构成,这几个部分互相配合完成“一条 SQL 语句从提交到获取查询结果”整个生命周期。 文章浏览阅读814次。本文详细介绍了Presto命令行客户端和可视化客户端的安装步骤,并提供了查询优化的建议,包括合理设置分区、使用列式存储、数据压缩等。此外,还提到了查询SQL时应注意的事项,如选择需要的字段、使用分区字段过滤、优化GroupBy语句等。 例如,可以使用Presto SQL提供的性能监控工具来监控Join操作的实时性能数据,以便及时发现和解决问题。同时,我们还可以通过调整查询语句、索引设计、数据分区等手段来提高Join操作的性能。 总结起来,Presto SQL中的Join操作是数据库查询的重要组成部分。 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company After building Presto for the first time, you can load the project into your IDE and run the server. You will find the configuration in etc/. Presto SQL 的核心要素. He had built SQL clients for Windows in the past, so this was influenced by his own work experience. 基于RESTful HTTP提供command line,支持JDBC。基于ANTL parser把sql转为 SQL Statement Syntax Initializing search Presto Presto 0. Client:包括 prosto-cli 客户端以及 JDBC 驱动、ODBC 或 其他语言实现的Driver;. It was developed by Facebook in 2012 and subsequently made open-source under the Apache license. SQL Dialect Presto closely 1. Presto SQL editing for teams. 4k次。前言 Presto源码主要从两部分入手阅读,presto-cli与presto-main分别对应的是client端的入口与server端的入口工程。 版本如下 com. 5, 3. There are no 'tabs within tabs', cryptic buttons, or old-school Java swing interfaces. Tracks progress and returns results to clients. NullInt64 float64 , presto. data use cases. You can explore and preview tables in Presto, effortlessly compose SQL queries to access data. advance()更是访问nextUri的关键方法_presto client Presto is an open-source distributed SQL engine suitable for querying large amounts of data. and features of the Presto engine. 1. Presto use cases. Provides a low-level client and a DBAPI 2. 1-executable. Connector:Connector连接数据源与Presto,在Presto中新增Catalog时,都需要指定这个Catalog对应的Connector名称,如下,我们新增了一个Catalog(name = taobao),它对应的数据源是mysql: A Presto client request is initiated by an HTTP POST to the endpoint /v1/statement, with a POST body consisting of the SQL query string. 5. budget_period, b. 219-executable. Clients: They are PrestoDB consumers. Optimiser / Analyser gets the partition info using metadata API; From the generated AST The Presto client with the highest user ratings. A presto/trino client library written in rust. SQL Compatibility: We would like to show you a description here but the site won’t allow us. Use a client to connect to the Presto cluster or machine. Worker Nodes (👷,👷,👷) As we previously announced, we’re rebranding Presto SQL as Trino. Here's what my data looks like. We also describe some of the resource management mechanisms that enable multi-tenancy in Presto. From there, you can either export a CSV file or immediately visualize your data in the Superset “Explore” view. Presto provides the ANSI SQL interface, which can be used for all data analytics and IBM® watsonx. /run to 1. It supports a wide variety of use cases with diverse characteristics. 到这一步我们的Presto已经安装成功,但是我们现在还没有一个客户端,暂时没法将SQL提交到Presto集群执行,因此我们为了更加方便的使用,还得安装一个Presto Client。这个安装比较简单,直接获取一个presto-cli-0. name=kudu kudu. In IntelliJ, choose Open Project from the Quick Start box or choose Open from the File menu and select Presto 是一个开源的分布式 SQL 引擎,用于在线分析处理,在集群中运行。 Presto 可以查询各种各样的数据源,从文件到数据库,并将结果返回到许多商业智能和分析环境。更重要的是,Presto 允许查询数据所在的地方,包括 Hive、Cassandra、关系型数据库和专有数据存储。 文章浏览阅读2. Tabbed Interface - Open a bunch of queries and tables all alongside each other. The queries can be simple SELECT statements or more complex queries Presto Architecture. 41 stars. The official home of the Presto distributed SQL query engine for big data - presto/presto-ui/src/sql_client. The Presto client can be a command line interface or a GUI tool such as Presto CLI or SQL Presto是一个由Facebook开源的分布式SQL查询引擎,适用于交互式分析查询,数据量支持GB到PB字节。Presto可以扩展到在不同类型的数据源上运行,包括传统的关系数据库和其他数据源。Presto提供了SQL的解析和标准数据库的功能,但是它是不能替代MySQL、PostgreSQL或Oracle等数据库,它不是为处理在线事务处理 Apache Superset¶. 7, 3. io), a distributed SQL engine for interactive and batch big data processing. This is similar to Hive Client. In this article I’m going to tell you how I enabled the Python back end of my dashboard application to communicate with Presto using the familiar SQLAlchemy library. Presto 主要是由 Client、Coordinator、Worker 以及 Connector 等几部分构成。 1. client_id, b. Python requirements. 1 SQL Dialect. Share a URL for your query rather than copying and pasting SQL over chat. Multi-Source Querying: Presto can query data from multiple sources within a single query. 291 Documentation Presto Overview; Installation; Presto Clients; Security; Administration; Cache; Query Optimizer; Connectors; Plugins; Functions and Operators; SQL Language; SQL Statement Syntax. This page describes the protocol used by a Presto client to communicate with a Presto coordinator through HTTP. Readme License. Use Presto to run interactive/ad hoc queries at sub-second performance for your high volume apps. You can use . The caller may set header X-Presto-User to the username for the session, as well as a long list of other headers, documented below. Its architecture allows users to query data Client for Presto (https://prestodb. Presto SQL执行原理图. 进入数据开发的项目列表页面。 通过阿里云账号登录 阿里云 E-MapReduce 控制台 。; 在顶部菜单栏处,根据实际情况选择地域 和资源组 。; 单击上方的 数据开发 页签。 文章浏览阅读3. Presto is designed to be adaptive, flexible, and extensible. A member of the Linux Foundation, the Presto Foundation is a non-profit that supports Presto, an open-source distributed SQL query engine. Collaborate on Presto data with your team. day, s. Client Interfaces, Parsing, and Planning(接口、语法解析和逻辑计划) Presto执行SQL语句,并且转化为执行计划,在由coordinator 和 workers组成的分布式集群上运行。 Statement. 文章浏览阅读472次,点赞4次,收藏3次。通过使用库,Python可以与Presto进行交互,执行分布式SQL查询。这使得Python开发者可以利用Presto的强大查询能力来分析大规模数据集。注意:确保Presto服务器的地址、端口、用户名、catalog和schema配置正确,以便成功连接和执行查询。 I struggled a bit to get Presto SQL up and running and with an ability to query parquet files on S3. data on Red Hat® OpenShift® watsonx. It assists with writing SQL queries, provides real-time data insights, and integrates seamlessly with Presto systems. 1. NullString int64 , presto. Presto supports standard ANSI SQL meanings, including joins, queries, sub-queries and aggregations. A POST to /v1/statement runs the query string in the Presto is a distributed SQL query engine for big data. We recommend using IntelliJ IDEA. 190-SNAPSHOT presto_presto worker获取执行sql日志 Presto, an open-source distributed SQL query engine that's revolutionizing how we approach big data analytics. Clients use the JDBC/ODBC/REST protocol to talk to coordinators. Use the DBAPI interface to query Presto: host='localhost', port=8080, user='the-user', catalog='the-catalog', Make it easy for your team to securely access the Presto database, without hunting for credentials. 237. Get started for free Go to connection guide-> PopSQL is trusted by 2000+ of the world's top data teams. See how some the largest internet-scale companies The Presto client allows users to submit Presto queries and view results. spend, case when b. See Connecting to Databases: Presto in the Superset documentation. budget_period = 'daily' then s. Supported functions include subqueries, aggregations, and window functions. Presto 是一个高性能的分布式 SQL 查询引擎,用于处理大规模数据。由于其出色的性能和灵活性,Presto 在数据仓库和大数据领域得到了广泛应用。 本文将深入探讨 Presto 的原理、调优技巧、面试要点以及实践应用,帮助读者全面了解 Presto 的使用和优化。 Presto 是完全基于内存的并行计算,他不像 Hive MR/TEZ 需要把中间数据写盘、Spark 需要把溢出的数据写盘,Presto 是完全假设数据能有效的放入内存。再者,得益于Presto流水线式的作业计算能力,在很多 SQL 执行时通过分析SQL的执行计划,能把立即展现的数据立即返回。 After building Presto for the first time, you can load the project into your IDE and run the server. This note documents the REST API used by the Presto client. Apache Superset is an open source data exploration tool. Presto简介 1. 0 implementation. There is a parquet file for each of client 1-4). 7, and pypy. php 要求 PHP-Curl 兼容性 在所有版本的 Presto 上测试成功,最高可达 0. Install or deploy Superset following the Superset documentation. Execute SQL queries: Once you are connected, you can run SQL queries against the data sources. 1 原理图名词介绍. This allows you to execute SQL queries directly from a web browser. Presto Rest API is used to submit query statements for execution on a server and to retrieve the results for the client. Presto是 Facebook 推出的一个开源的分布式SQL查询引擎,数据规模可以支持GB到PB级,主要应用于处理 秒级查询 的场景。 Presto 的设计和编写完全是为了解决像 Facebook 这样规模的商业数据仓库的 交互式分析和处理速度 的问题。 After building Presto for the first time, you can load the project into your IDE and run the server. Presto is a distributed SQL query engine, with the capability to query vast data sets located in different data sources, thus solving data problems at scale. facebook. SQL Dialect(SQL支持) Presto采用了标准的ANSI SQL规范 ,具备一定的扩展能力,例如支持maps and arrays, 支持anonymous functions (lambda expressions) ,支持高阶函数 higher-order functions。 2. SQL 语句提交: 用户或应用通过 Presto 的 JDBC 接口或者 CLI 来提交 SQL 查询,提交的 SQL 最终传递给 Coordinator 进行下一步处理; Presto 是一个开源的分布式 SQL 查询引擎,用于查询大型数据集。本文将介绍 Presto 客户端的基本概念和使用方法,帮助你更好地理解和使用这个强大的工具。 这两种方式最终都是通过 Presto-client 的 StatementClient 将 SQL 发送到服务端 Coordinator,然后 Coordinator 将 SQL MySQL follows a traditional client-server architecture, where the client sends requests to the server, which then processes and returns the results. Now comes the hard part: migrating to the new version of the software. watsonx. Add Chop and change table structure in seconds without writing any code. io) trino. 5k次,点赞51次,收藏22次。Presto是一款分布式SQL查询引擎,专为大数据分析而设计。它支持从多个数据源(如Hive、Cassandra、Kafka、MySQL等)查询数据,具有高性能、低延迟的特点。高性能:Presto通过并行执行查询和高效的内存管理来提供高性能 在数据开发过程中如果您需要使用 Presto SQL,可以在 E-MapReduce 中配置 Presto SQL 作业。 本文介绍如何配置 Presto SQL 作业。. ALTER FUNCTION; ALTER SCHEMA L’API Presto Rest envoie ensuite les instructions de requête pour l’exécution sur un serveur et la récupération des résultats pour le client. jsx at master · prestodb/presto To extend the benefits of the presto-js-client even further, the Presto Console was introduced to the Presto UI in version 0. 5 Presto Client部署. However, the output is simply empty for "all_clients_total_clicks". MIT license Activity. Discovery Service(Hive Metastore):是将 coordinator 和 worker 结合到一起的服务。Worker节点启动后向Discovery Server服务注册,Coordinator 从DiscoveryServer 获得可以正常工作的 Worker 节点; After building Presto for the first time, you can load the project into your IDE and run the server. Parsing: Presto uses ANTLR parser to convert SQL statements into AST. First thing first, open the Presto web UI on a browser and click After building Presto for the first time, you can load the project into your IDE and run the server. In addition to basic SQL client functionalities, users can export 四、Presto系统设计 1. HeidiSQL # HeidiSQL is also a lightweight SQL client that supports a long list of databases including MariaDB, MySQL, MS SQL, PostgreSQL, SQLite, Interbase and Firebird. It supports Python 2. 1) Presto 与 Hive 对比,都能够处理 PB 级别的海量 query steps in presto. client. In IntelliJ, choose Open Project from the Quick Start box or choose Open from the File menu and select the root pom. ***** 4. jar包即可。 Presto JDBC 主要实现类: PretoDriver: 定义了 Presto 驱动的版本号和自定义属性,类加载时自动向 DriverManager 注册,客户端可获取连接会话; PrestoConnection:通过 PretoDriver 创建,同时传入 QueryExecutor,QueryExecutor 用于执行所有 SQL 查询,而 PrestoConnection 负责处理执行前的连接校验和事务处理等; 通过下面一张图,我们来看看 Presto 中 SQL 运行过程:MapReduce vs Presto. When users run an SQL statement in Presto, they run it against one or more catalogs. Forks. Presto Client License: Apache 2. Log into Superset as Presto SQL works with variety of connectors. I did some experiments to get it connect to AWS S3. There are 12 other projects in the npm registry using presto-client. Presto prend en charge les expressions ANSI SQL standard, y compris les jointures, les requêtes, les sous-requêtes et les agrégations. 0: Tags: presto client: Ranking #24901 in MvnRepository (See Top Artifacts) Used By: 17 artifacts: jenkins kotlin library maven mobile module npm osgi persistence plugin resources rlang sdk server service spring sql starter testing tools ui war web webapp Establish connection: Use a client to connect to the Presto cluster or machine. Presto设计了 Connector 、 Catalog 、 Schema 、 Table 这4个概念来定义SQL计算中数据源表。. Watchers. 2 Presto SQL Lifecycle. day) and range between unbounded preceding and current row:. The Presto Foundation operates under an open governance You can remove group by clause completely and use ordering and frame for your window functions with order by date(s. SQL Statement Syntax. Without further ado, let’s explore the features provided by the Presto Console. budget_period = 'monthly' then The Presto coordinator listens on HTTP from clients, and also has a JDBC client that interfaces with BI tools. We describe the SQL dialect that Presto supports, then follow the query lifecycle all the way from client to distributed execution. Modern and easy to use Presto GUI client - We sweat the details. prestosql » presto-client Presto Client. Presto is an open source distributed query engine that supports much of the SQL analytics workload at Facebook. js. Unfortunately, there are some unavoidable compatibility aspects that administrators of Trino need to know about. Download Presto client $ mv presto-cli-0. Presto 可用于交互式和批处理工作负载,无论数据量大小,并且可以从几个用户扩展到数千个用户。使用 Presto,您将获得一种熟悉的 ANSI SQL 语言和一个数据分析引擎,因此您无需再学习其他湖仓引擎。 文章浏览阅读904次。结合Presto CLI,学习Presto client如何与coordinator交互的。其中,REST API返回的response中的nextUri是推动查询进度的关键,StatementClientV1. A client sends an SQL query to the coordinator; At first, the query is Parsed and AST is generated. Once it has compiled the query, Presto parses the request into different stages between the worker nodes. jar presto $ chmod +x presto Connect Presto在执行SQL语句时,将其解析成相应的查询,并分配给Worker执行这些Task – Statement 即输入的SQL语句;Presto支持符合ANSI标准的SQL语句,由字句,表达式和断言组成 – Query 即查询执行,当Presto接受SQL并执行时,会解析SQL并转变成一个查询执行和相关的查 Presto是一种用于大数据的高性能分布式SQL查询引擎。 其架构允许用户查询各种数据源,如Hadoop,AWS S3,Alluxio,MySQL,Cassandra,Kafka和MongoDB,甚至可以在单个查询中查询来自多个数据源的数据,真是功能强大。 connector. Start using presto-client in your project by running `npm i presto-client`. 我们可以很明显地感受到, Presto 使用内存计算,减少与硬盘交互. . 6, 3. 下面的架构图中展现了简化的Presto系统架构。客户端(client)将SQL查询发送到Presto的协调员(coordinator)。协调员会进行语法检查、分析和规划查询计划。计划员(scheduler)将执行的管道组合在一起, 将任务分配给那些里数据最近的节点,然后监控执行过 Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino. Please refer to the Dockerfile for details. 0, last published: a year ago. View Page Source Edit this page Create docs issue Create project issue DBeaver; Apache Superset; Security; Administration; Cache; Query Optimizer; Connectors; Plugins; Functions and Operators; SQL Language; SQL Statement Syntax; Migration; REST API; Ecosystem; Router; Developer Guide; Presto C++; Release Notes Presto(Trino)是一个高性能的分布式SQL查询引擎,适用于大规模数据仓库和数据分析场景。它提供了丰富的配置参数和SQL语法,以满足各种复杂查询需求。本文将详细介绍Presto(Trino)的配置参数和SQL语法,帮助您更好地理解和使用这个工具。 文章浏览阅读9. xml file. NullMap The official home of the Presto distributed SQL query engine for big data - Presto v2 client protocol · prestodb/presto Wiki Running Presto in your IDE Overview After building Presto for the first time, you can load the project into your IDE and run the server. You may need pyhive to configure Superset to connect to Presto. the image is named presto-server:${PRESTO_VERSION}; the container is named presto-python-client-tests-{uuid4()[:7]}; The container is expected to be removed after the tests are finished. PhpPresto客户端 连接到 PrestoDB 服务器的简单 Php 类,该服务器针对 Hadoop HDFS 集群运行分布式查询。Presto 使用 SQL 的子集作为其查询语言。Presto 是 Hadoop-Hive 或 Impala 的替代方案。用法 有关如何使用它的简短演示,请参阅 Demo. Take any table, view, or SQL query result and export it to CSV, Excel, or JSON in two clicks. datetime, client_id, new_budget _____,_____,_____ 2022-01-01,1 The official home of the Presto distributed SQL query engine for big data - Home · prestodb/presto Wiki. A. Report repository Releases 12 tags. select s. Download Presto client Type: string Valid values: string describing the source of the connection to presto Default: empty The source parameter is optional, but if used, can help presto admins troubleshoot queries and trace them back to the original client. This includes data stored in Hadoop, relational databases, NoSQL databases, and other data stores. Even More GUI Features For Presto. Contribute to nooberfsh/prusto development by creating an account on GitHub. spend when b. 7 (100+ REVIEWS) #1 HIGHEST RATED Writing SQL for Presto is similar, but not exactly the same as for any other database. budget_amount, s. Presto, on the other hand, uses a distributed query engine architecture, allowing it to process large amounts of data by leveraging the power of a cluster of machines. Finally, we briefly discuss fault tolerance. There are two Presto client 4. Presto Clients Presto Clients. presto presto-root 0. Say that I want to find every time that a client updated their budget. extended SUPPORT. 操作步骤. io Java presto hive hadoop big-data SQL prestodb 数据库 distributed-systems distributed-database 数据科学 datalake jdbc query-engine trino analytics delta-lake iceberg Presto优缺点Presto中SQL运行过程:MapReduce vs Presto使用内存计算,减少与硬盘交互。优点1)Presto与Hive对比,都能够处理PB级别的海量数据分析,但Presto是基于内存运算,减少没必要的硬盘IO,所以更快。2)能够连接多个数据源,跨数据源连表查,如从Hive查询大量网站访问记录,然后从Mysql中匹配出设备 4. See the Presto (including PrestoDB, and PrestoSQL which was re-branded to Trino) is a distributed query engine for big data using the SQL query language. To extend the benefits Presto is an open source SQL query engine that's fast, reliable, and efficient at scale. This package provides a client interface to query Presto a distributed SQL engine. View Page Source Edit this page Create docs issue Create project issue Apache Superset; Security; Administration; Cache; Query Optimizer; Connectors; The presto-js-client enables the capability to communicate with the Presto SQL engine using JavaScript, one of the trending programming languages. 3k次,点赞8次,收藏45次。Presto是一款Facebook开源的MPP架构的OLAP查询引擎,可针对不同数据源执行大容量数据集的一款分布式SQL执行引擎,数据量支持GB到PB字节,主要用来处理秒级查询的场景。Presto 本身并不存储数据,,但是可以接入多种数据源,并且支持跨数据源的级联查询,而且 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Client for the Presto distributed SQL Engine. Presto执行兼容ANSI标准的SQL。这些SQL statements包含子句,表达式,条件。 Presto把Statement 和 Query区分开是因为:在Presto中,statements是指Client提交上来的SQL语 Presto客户 编程语言的客户端。产品特点 本机Go实施 通过HTTP或HTTPS的连接 HTTP基本和Kerberos身份验证 每个查询的用户信息,用于访问控制 支持自定义HTTP客户端(可调conn池,超时,TLS) 支持从Presto到本机Go数据类型的转换 string , sql. Monitoring. We just released the first version, Trino 351, which uses the name Trino everywhere, both internally and externally. Follow these steps to configure Superset to query Presto. Chat2DB's Presto Database Client is a powerful tool that simplifies Presto database management through intelligent automation and user-friendly interfaces. data Developer edition. Presto has three main components: Presto Client; Presto Coordinator; Presto Worker; Presto Client is for submitting Presto SQL to Presto Coordinator. DbVisualizer understands these differences and will make Presto是一个开源的分布式SQL查询引擎,适用于交互式分析查询,数据量支持GB到PB字节,Presto虽然具备解析SQL的能力,但它并不属于标准的数据库范畴。Presto支持在线数据查询,包括Hive,关系数据库以及专有数据存储。一条Presto查询可以将多个数据源的数据进行合并,可以跨越整个组织进行分析 Home » io. 注意: 虽然 Presto 可以解析 SQL,但它不是一个标准的 Distributed query engine Presto/Trino client library for node. rust sql presto trino Resources. Because Presto is a standard Maven project, you can import it into your IDE using the root pom. budget_id, b. Presto Coordinator receives SQL Lab is a a part of Superset and provides rich SQL editor that enables users to both query and visualize data. This 使用一个引擎实现 SQL 标准化. 1 watching. Plus import your own 1. ; Open Multiple Presto Connections At Once - give each connection a color, and run them all at once if you wish. After building Presto for the first time, you can load the project into your IDE and run the server. ANSI SQL ,有一定扩展,例如支持maps and arrays, 支持anonymous functions (lambda expressions) ,支持 高阶函数 higher-order functions。 4. Latest version: 1. Provides a low-level client and a DBAPI 2. Presto简介 Presto是Facebook推出的一个基于Java开发的大数据分布式SQL查询引擎,可对从数 G 到数 P 的大数据进行交互式的查询,查询速度快(据称性能是hive的10倍以上),Presto 的目标是在可期望的响应时间内返回查询结果,单个 Presto 查询可合并来自多个数据源的数据进行统一分析。 I am using AWS Athena to run a query against my data set to combine values from different columns found in various data sets (ex. The InterSystems IRIS and Presto together allow you the following use cases: Ad-hoc queries: They build a Docker image and then run a container with a Presto server:. Stars. master-addresses=localhost:7051 不管是Presto DB还是Presto SQL,它们”本是同根生“,因此它们的大部分的机制原理是一样的。 如上图所示,Presto主要是由Client、Coordinator、Worker以及Connector等几部分构成,这几个部分互相配合完成“一条SQL语句从提交到获取查询结果”整个生命周期。 A Presto client request is initiated by an HTTP POST to the endpoint /v1/statement, with a POST body consisting of the SQL query string. data SaaS on AWS. 1 优点. ouou pwljdoal azlpn xtnpw iwysup ifwor jaxkm aqdhz gewfat yge bvsq ggzmd pqsnpuz syokl zugkq