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Add documentation for exponential_histogram field type#139684

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JonasKunz merged 18 commits intoelastic:mainfrom
JonasKunz:exp-histo-docs
Dec 19, 2025
Merged

Add documentation for exponential_histogram field type#139684
JonasKunz merged 18 commits intoelastic:mainfrom
JonasKunz:exp-histo-docs

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@JonasKunz
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Adds documentation for the new exponential_histogram ES and ES|QL type.
Also adds docs for the related coerce functionality with which we enhanced the histogram type.

@elasticsearchmachine elasticsearchmachine added v9.3.0 external-contributor Pull request authored by a developer outside the Elasticsearch team labels Dec 17, 2025
@JonasKunz JonasKunz added >docs General docs changes :StorageEngine/Mapping The storage related side of mappings and removed external-contributor Pull request authored by a developer outside the Elasticsearch team v9.3.0 labels Dec 17, 2025
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ℹ️ Important: Docs version tagging

👋 Thanks for updating the docs! Just a friendly reminder that our docs are now cumulative. This means all 9.x versions are documented on the same page and published off of the main branch, instead of creating separate pages for each minor version.

We use applies_to tags to mark version-specific features and changes.

Expand for a quick overview

When to use applies_to tags:

✅ At the page level to indicate which products/deployments the content applies to (mandatory)
✅ When features change state (e.g. preview, ga) in a specific version
✅ When availability differs across deployments and environments

What NOT to do:

❌ Don't remove or replace information that applies to an older version
❌ Don't add new information that applies to a specific version without an applies_to tag
❌ Don't forget that applies_to tags can be used at the page, section, and inline level

🤔 Need help?

@JonasKunz JonasKunz marked this pull request as ready for review December 18, 2025 09:26
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Pinging @elastic/es-storage-engine (Team:StorageEngine)

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Pinging @elastic/core-docs (Team:Docs)

…togram.md

Co-authored-by: shainaraskas <58563081+shainaraskas@users.noreply.github.com>
@JonasKunz JonasKunz requested a review from felixbarny December 19, 2025 10:12
@JonasKunz JonasKunz merged commit b3ce322 into elastic:main Dec 19, 2025
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@kkrik-es
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@marciw fyi, in case you wanna take a look.

szybia added a commit to szybia/elasticsearch that referenced this pull request Dec 19, 2025
* upstream/main:
  Update text_similarity_rank_retriever to support inference ID as an argument when reranking on chunks (elastic#137397)
  Mute org.elasticsearch.test.rest.yaml.CssSearchYamlTestSuiteIT test {p0=search.retrievers/result-diversification/10_mmr_result_diversification_retriever/Test MMR result diversification multiple indexes} elastic#139826
  Mute org.elasticsearch.index.mapper.SkipperSettingsTests testTSDBSkipperSettingDefaults elastic#139824
  Unmute test fix elastic#129517 (elastic#139782)
  Add back support for deserializing old refresh token in test (elastic#139811)
  Add documentation for exponential_histogram field type (elastic#139684)
  make ES|QL sample CSV test looser (elastic#139814)
  Add `frozen_after` field to data stream lifecycle (elastic#139042)
  Quieten many `ERROR` logs to `WARN` (elastic#139799)
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