# Run Aggregation Pipeline

**Run Aggregation Pipeline** are specific data you get from a database when you ask for exactly what you need using a customised search. It's like getting just the right information from a big pile of data by asking the database specific questions.

### Properties Panel

<table><thead><tr><th width="153">Field</th><th width="477">Description</th><th>Required</th></tr></thead><tbody><tr><td>Node name</td><td><a href="/pages/jJ1qO0Ju8d7VFyPB2Jy3"><mark style="color:blue;"><strong>Checkout Node name</strong></mark></a></td><td>true</td></tr><tr><td>Database collection</td><td>Database collection in which you want to query</td><td>true</td></tr><tr><td>Custom Aggregate Query</td><td>Custom aggregation query that you want to execute on collection above</td><td>true</td></tr></tbody></table>

### Returns

`result` - The result of the aggregation query at runtime. You can access this using Magical Autocomplete (e.g. `$.<node_name>.result`) in any node below this node.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.cosmocloud.io/flow-builder/node-types/database-nodes/run-aggregation-pipeline.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.