# Terms Aggregation

Terms Aggregation is a bucket aggregation that allows you to group documents into buckets based on the values of a specific field. 

**Example -**

{% code lineNumbers="true" %}

```json
{
   "query": {
            "bool": {
                "must": {
                    "term": {"product_type_name": "Dress"}
                }
            }
        },
        "aggs": {
            "unique_products": {
                "terms": {
                    "field": "prod_name"
                }
            }
    }
}
```

{% endcode %}

In the above example, the aggregation will be performed over the field "<mark style="color:purple;">unique\_products</mark>" over all documents that pass the query.  The aggregation results will be stored under buckets, according to the possible value of the field "<mark style="color:purple;">prod\_name</mark>".


---

# 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.hyper-space.io/hyperspace-docs/api-documentation/dsl-query-framework/aggregations/terms-aggregation.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.