Flattened Data Type
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What is Flattened Data Type?
The flattened data type in Elasticsearch allows you to index an entire JSON object as a single field. This is useful when you have objects with many fields, but you only need to search or aggregate on a small subset of them. Instead of mapping each individual field, the flattened type indexes the entire object as a string, enabling you to query specific values within the object using specialized queries.
Free resources to learn Flattened Data Type
- Official docsFlattened field type
- ArticleFlattened Datatype Mappings — Elasticsearch Tutorial
- VideoFlattened Datatype
More in stage 4: Leaf vs Compound Queries
Flattened Data Type: common questions
Can I learn Flattened Data Type 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 Flattened Data Type 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 Flattened Data Type tutorial for beginners?
It is lesson 35 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.