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marciw merged 6 commits into from
Mar 29, 2026
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Add notes about using Painless with cross-project search #5608

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Add notes for using CPS with Painless
marciw Mar 24, 2026
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Update cross-project-search.md
marciw Mar 24, 2026
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marciw Mar 24, 2026
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Merge branch 'cps-tech-preview' into mw-painless-cps
marciw Mar 29, 2026
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2 changes: 2 additions & 0 deletions deploy-manage/cross-project-search-config/cps-config-impacts-and-limitations.md
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Expand Up @@ -26,6 +26,8 @@ For more details about {{cps-init}} configuration, refer to [](/deploy-manage/cr

- **User permissions:** {{cps-cap}} results are filtered by each user's role assignments across projects. Users with different roles will see different results from the same query. Refer to [Manage user access](/deploy-manage/cross-project-search-config/cps-config-access-and-scope.md#manage-user-access).

- **{{product.painless}} scripting:** The [{{product.painless}} execute API](/explore-analyze/cross-project-search.md#cps-painless-execute) does not search across linked projects. It resolves index names against the origin project only. You can target a linked project by prefixing the index with the project alias (for example, `projectAlias:myindex`).

@kilfoyle kilfoyle Mar 25, 2026

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@marciw Out of curiousity, do happen to know where {{product.painless}} is defined? I know that it works, but I'm surprised not to see it in docs-content/docset.yml.

@shainaraskas shainaraskas Mar 25, 2026

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it comes from https://github.com/elastic/docs-builder/blob/main/config/products.yml


## Limitations [cps-limitations]

::::{include} /deploy-manage/_snippets/cps-limitations-core.md
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14 changes: 14 additions & 0 deletions explore-analyze/cross-project-search.md
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Expand Up @@ -151,6 +151,20 @@ The following APIs support {{cps}}:
* Search scroll [clear](https://www.elastic.co/docs/api/doc/elasticsearch/v9/operation/operation-clear-scroll), [run](https://www.elastic.co/docs/api/doc/elasticsearch/v9/operation/operation-scroll)
* [Search template](/solutions/search/search-templates.md)

### {{product.painless}} scripting [cps-painless-scripting]

The [{{product.painless}} execute API](elasticsearch://reference/scripting-languages/painless/painless-api-examples.md) (`POST _scripts/painless/_execute`) does not search across linked projects. Unlike the search APIs listed above, the execute API resolves index names against the **origin project only**.

When testing scripts with the execute API in a {{cps}} environment:

* To target a specific linked project, prefix the index with the project alias: `projectAlias:myindex`.
* To explicitly target the origin project, use `_origin:myindex`.
* An unqualified index name like `logs` is equivalent to `_origin:logs` — it targets the origin project only.
* Only a single index is accepted. Wildcards and [project routing](/explore-analyze/cross-project-search/cross-project-search-project-routing.md) are not supported.
* Requests to linked projects are subject to the same [security model](/explore-analyze/cross-project-search.md#security) as other {{cps}} requests.

For additional information, refer to the [{{product.painless}} execute API reference](elasticsearch://reference/scripting-languages/painless/painless-api-examples.md).

<!--
### {{cps-cap}} specific APIs

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2 changes: 1 addition & 1 deletion explore-analyze/cross-project-search/cross-project-search-manage-scope.md
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Expand Up @@ -60,7 +60,7 @@ Not all apps support {{cps}}. The following table shows which apps support the {
| --- | --- | --- |
| **Agent Builder** | Not available | ES\|QL |
| **Dashboards** | Editable | Per-panel overrides using ES\|QL visualizations or Maps layer routing. Dashboards can also [store a {{cps}} scope](/explore-analyze/dashboards/using.md#dashboard-cps-scope). |
| **Dev Tools / Console** | Not available | Full CPS through raw API requests, including ES\|QL |
| **Dev Tools / Console** | Not available | Full {{cps-init}} through raw API requests, including ES\|QL. The [{{product.painless}} execute API](/explore-analyze/cross-project-search.md#cps-painless-scripting) resolves index names differently. |
| **Discover** | Editable | ES\|QL |
| **Lens visualizations** | Editable | ES\|QL visualizations [^cps-badge] |
| **Maps** | Editable | Layer-level [project routing](/explore-analyze/cross-project-search/cross-project-search-project-routing.md) for vector layers and joins |
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