Query

Lesson in the Elasticsearch Roadmap · Stage 4: Leaf vs Compound Queries

Last updated 14 September 2026

What is Query?

A query is a request for information from a data source. It specifies the criteria for retrieving specific data that matches the defined conditions. In Elasticsearch, queries are used to search and retrieve documents that match certain criteria within an index. These queries can range from simple keyword searches to complex combinations of filters and conditions.

Study this in the interactive course See the whole Elasticsearch roadmap

Free resources to learn Query

Official docsQuery and filter context
Official docsQuery DSL
ArticleDeep Dive into Elastic Search Querying, Filter vs Query Context

Query: common questions

Can I learn Query in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Query in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Query tutorial for beginners?

It is lesson 48 of 113 in the free Elasticsearch roadmap, in stage 4, Leaf vs Compound Queries. If you are new to Elasticsearch, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.