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ClickHouse

To add a ClickHouse connection, click on the ClickHouse option in Connect a data source section. connect

Connect​

Fill in the connection settings: clickhouse_1

Connecting from a local ClickHouse

For MacOS and Windows users connecting from a local ClickHouse, simply use host.docker.internal as the host to establish the connection.

You can refer to this blog post, which includes detailed steps for your reference.

Display name​

The display name for the database in the Wren AI interface.

Host​

IP address or domain name of your ClickHouse database.

Port​

Your ClickHouse database port.

Username​

The database username for the account that you want to use to connect to your ClickHouse database.

Password​

The password for the username that you use to connect to the database.

Database name​

The name of the database you want to connect to.

Click Next to start connection and go to the next step.

clickhouse_2

Select Tables​

All tables of your connected ClickHouse dataset will be listed in this step. Select which tables you want to use in Wren AI. Each selected table will be created as a data model. See the Modeling documentations to learn more about what is data models. select_table

Define relationships​

Define the relationships among selected tables in this step. If you have defined primary keys and foreign keys in your ClickHouse dataset, we will list suggested relationships based on the information. If not, you can also add relationships by clicking the Add relationships button on the table blocks. define_relationship_1

Define following properties in a relationship:

  • From: Select the left side table and column of this relationship.
  • To: Select the right side table and column of this relationship.
  • Relationship Type: Select the type of relationship. define_relationship_2

Find more information about relationship in Modeling - Working with Relationships

You can also skip this step and finish connection.