View Explain Plans for a Pipeline

About this Task

On the Explain modal, you can view the explain stages as a Visual Tree, where each stage of the pipeline appears as a node on the tree. Alternatively, you can view the explain details in raw JSON format by selecting the Raw Output view.

The explain plan includes a Query Performance Summary with information on the execution of your aggregation pipeline such as:

• Execution time

• The number of returned documents

• The number of examined documents

• The number of examined index keys

Steps

1

Click the Explain button

In the top right of the aggregation pipeline builder, click the Explain button to open the Explain Plan modal.

2

Select an aggregation pipeline

By default, the explain stages are are shown as a Visual Tree. Each stage of the pipeline appears as a node on the tree.

You can click on each stage for more detailed execution information about the stage.

3

(Optional) Select the Raw Output view

To view your full explain plan as raw JSON, select the Raw Output view.

Learn More

• Analyze Query Performance

• View Query Performance