> For the complete documentation index, see [llms.txt](https://docs.bindplane.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bindplane.com/integrations/processors/coalesce.md).

# Coalesce

### Description

The Coalesce processor can be used to consolidate many field names into a single field name.

### Use

The Coalesce processor is utilized for consolidating telemetry fields in metrics, logs, and traces based on specified conditions.

{% hint style="info" %}
**NOTE**

While this is similar on concept to SQL Coalesce, it has some key differences. Especially around the order of precedence. See the behavior section.
{% endhint %}

### Supported Types

| Metrics | Logs | Traces |
| ------- | ---- | ------ |
| ✓       | ✓    | ✓      |

### Configuration

<table><thead><tr><th width="156.99609375">Field</th><th>Description</th></tr></thead><tbody><tr><td>Telemetry Types</td><td>The types of telemetry to apply the processor to.</td></tr><tr><td>Condition</td><td>A condition that determines when this processor is applied.</td></tr><tr><td>Action</td><td>The action to take (insert, update, upsert) when coalescing telemetry</td></tr><tr><td>Coalesce From</td><td>The telemetry fields to coalesce from.</td></tr><tr><td>Coalesce To</td><td>The telemetry field to coalesce to.</td></tr></tbody></table>

### Behavior

The behavior of this processor is dependent on the selected action.

* When insert is selected, the target field only gets coalesced to if it doesn't exist.
  * Precedence: First item in list.
* When update is selected, the target field gets coalesced to only if it already exists.
  * Precedence: Last item in list.
* When upsert it selected, the target field gets coalesces to regardless whether it existed or not.
  * Precedence: Last item in list.

### Example Configuration(s)

#### Coalesce timestamp fields

This configuration will coalesce the body fields `ts`, `time`, and `timestamp` to an attribute named `time` for later parsing. Upsert is used for the action.

**Web Interface**

<figure><img src="/files/7TiWyjYcP7ZLzz1qcv7y" alt="Bindplane docs - Coalesce - image 1"><figcaption></figcaption></figure>

#### Coalesce severity fields

This configuration will coalesce the body fields `sev`, `severity`, and `level` to an attribute named `severity` for later parsing. Upsert is used for the action.

**Web Interface**

<figure><img src="/files/1Wgh85e4NSExFhXj6eqA" alt="Bindplane docs - Coalesce - image 2"><figcaption></figcaption></figure>

#### Coalesce datacenter fields

This configuration will coalesce the body fields `dc`, `datacenter`, and `location` to an attribute named `datacenter` for later parsing. Upsert is used for the action.

**Web Interface**

<figure><img src="/files/T0jfNfnqrIDPTTvDIFQj" alt="Bindplane docs - Coalesce - image 3"><figcaption></figcaption></figure>


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