Docs Home / Compass / Interact with Your Data / Manage Collections

Create a Clustered Collection

Clustered collections are collections with a clustered index. Clustered collections store documents ordered by clustered index key value. You can use clustered collections when only one clustered index is necessary.

Limitations

Clustered collection limitations:

  • The clustered index key must be on the _id field.
  • Clustered collections may not be capped collections.

Steps

1

Open the Create Collection dialog box.

Select a database and from the Collections screen, click the Create Collection button.

You can also click the + next to the name of the database you select to open the Create Collection dialog box.

2

Enter the collection name.

3

Select the type of collection you want to create.

From the Additional preferences drop-down, select Clustered Collections.

4

(Optional) Name your clustered index.

You can enter a name for the clustered index or use the automatically generated name.

5

(Optional) Enter the number of seconds for the expireAfterSeconds field.

The expireAfterSeconds field is a TTL index that enables automatic deletion of documents older than the specified number of seconds. The expireAfterSeconds field must be a positive, non-zero value.

6

Click Create Collection to create your new collection.

In the Collections screen, your new collection is marked by a Clustered badge next to the collection name.

Next Steps