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go-tsdb-example

本项目主要是用来测试各种不同时序数据库(TSDB)的.

时序数据简介

时序数据全称是时间序列(TimeSeries)数据,是按照时间顺序索引的一系列数据点。最常见的是在连续的等时间间隔时间点上获取的序列,因此,它是一系列离散数据[1]。

时序数据几乎无处不在,在目前单向的时间流中,人的脉搏、空气的湿度、股票的价格等都随着时间的流逝不断变化。时序数据是数据的一种,因为它显著而有价值的特点,成为我们特别分析的对象。

将时序数据可以建模为如下部分组成:

  • Metric:度量的数据集,类似于关系型数据库中的 table,是固定属性,一般不随时间而变化
  • Timestamp:时间戳,表征采集到数据的时间点
  • Tags:维度列,用于描述Metric,代表数据的归属、属性,表明是哪个设备/模块产生的,一般不随着时间变化
  • Field/Value:指标列,代表数据的测量值,可以是单值也可以是多值

时序数据库

参考资料

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