Apache Druid

Mar 16, 2022

How-to Half-hour: Using Multi-value Dimensions in Apache Druid

It can be challenging to model 1-to-n data relationships in Druid. If you’ve tried, you probably did tons of JOIN operations to build an array. Did you know that with multi-value dimensions you can filter and group complex data quickly and easily?

In this webinar you will:

  • Learn the basics of multi-value dimensions and when they are useful
  • Get a step-by-step guide to setting up registered lists of data as multi-value string dimensions
  • See how a major telecommunications provider is using multi-value dimensions to analyze complex data