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Looker supports ClickHouse version 0.2 and higher.

Encrypting network traffic

Looker strongly recommends encrypting network traffic between the Looker application and your database. Consider one of the options described on the Enabling secure database access documentation page.

To enable SSL encryption on the server side, see the ClickHouse documentation.

Users and security

First, configure your Looker user on the ClickHouse server. ClickHouse database users are not created with the traditional CREATE USER command. Follow the ClickHouse Access Rights document to configure the users section in the users.xml file. Here is a basic example:

<!-- Users and ACL. -->
        <networks incl="networks" />

        <networks incl="networks" />

Also within this file, configure the appropriate database access:


Adding the connection

In the Admin section of Looker, select Connections, and then select New Connection.

Fill out the connection details (see the Connecting Looker to your database documentation page for more information):

Feature support

For Looker to support some features, your database dialect must also support them.

In Looker 22.10, ClickHouse supports the following Looker features:

Next steps

After you have completed the database configuration, connect to the database from Looker.