postgresql物联网平台的相关内容

文章 2022-02-15 来自：开发者社区

流计算风云再起 - PostgreSQL携PipelineDB力挺IoT(物联网), 大幅提升性能和开发效率

标签 PostgreSQL , pipelinedb , 流计算 , patch , bug , libcheck , zeromq , kafka , kinesis , IoT , 物联网背景 pipelinedb是基于PostgreSQL的一个流式计算数据库，纯C代码，效率极高(32c机器,单机日处理流水达到了250.56亿条)。同时它具备了Postg...

文章 2022-02-15 来自：开发者社区

83期：PostgreSQL独孤九式搞定物联网

本期头条 PostgreSQL独孤九式...

文章 2022-02-15 来自：开发者社区

旋转门数据压缩算法在PostgreSQL中的实现 - 流式压缩在物联网、监控、传感器等场景的应用

背景在物联网、监控、传感器、金融等应用领域，数据在时间维度上流式的产生，而且数据量非常庞大。例如我们经常看到的性能监控视图，就是很多点在时间维度上描绘的曲线。又比如金融行业的走势数据等等。我们想象一下，如果每个传感器或指标每100毫秒产生1个点，一天就是864000个点。而传感器或指标是非常多的，例如有100万个传感器或指标，一天的量就接近一亿的量。假设我们要描绘...

文章 2022-02-15 来自：开发者社区

PostgreSQL 物联网黑科技 - 瘦身500倍的索引(范围索引)

在数据库中用得最多的当属btree索引，除了BTREE，一般的数据库可能还支持hash, bitmap索引。但是这些索引到了物联网，会显得太重，对性能的损耗太大。为什么呢？物联网有大量的数据产生和入库，入库基本都是流式的。在使用这些数据时，基本是FIFO，或者范围查询的批量数据使用风格。 btree索引太重，因为索引需要存储每条记录的索引字段的值和寻址，使得索引非常庞大。 ...

文章 2022-02-15 来自：开发者社区

PostgreSQL 物联网黑科技 - 阅后即焚

在物联网应用场景中，有大量的传感器，会产生非常大量的消息以极高的并发进入数据库。这些数据如果直接进入面向OLAP场景设计的数据仓库，数据实时入库会成为瓶颈，并且OLAP系统很难接受非常高并发的请求。面对这样的应用场景，这些既要又要还要怎么满足呢？ .1. 既要实时入库， .2. 又要实时分析， .3. 还要历史留档，应对随时变化的分析需求。实时入库比较容易满足...

问答 2022-02-15 来自：开发者社区

PostgreSQL 物联网六脉神剑

在云栖大会期间，阿里云-飞天八部-数据库技术组高级技术专家digoal分享了物联网应用场景特性分析、PostgreSQL 物联网六脉神剑、ApsaraDB for RDS (PG) 介绍等方面的内容。" https://yq.aliyun.com/download/1659?spm=a2c4e.11154804.0.0.c9fd6a79q40neU

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更新时间 2024-08-14 09:15:23

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