The Looker dialect testing of Dremio runs against Dremio version 1.4.9 Enterprise Edition.
Encrypting network traffic
It is a best practice to encrypt network traffic between the Looker application and your database. Consider one of the options described on the Enabling secure database access documentation page.
Creating the Looker connection to your database
Follow these steps to create the connection from Looker to your database:
- In the Admin section of Looker, select Connections, and then click Add Connection.
Fill out the connection details. The majority of the settings are common to most database dialects. See the Connecting Looker to your database documentation page for information. Some of the settings are described next. Use the default values in all the other fields, or leave them blank.
- Name: Assign a unique name to the connection. The name is how LookML refers to this connection.
Dialect: Select Dremio 11+ or Dremio.
Host: Enter the IP address or hostname of the server where Dremio is running.
Port: The default port is
31010.Database: The default value is
DREMIO.Username: Enter the username that Looker uses to access Dremio.
Password: Enter the password that is associated with the username that you entered.
To verify that the connection is successful, click Test. See the Testing database connectivity documentation page for troubleshooting information.
Looker will run
SELECT 1 FROM (VALUES(1))to verify a basic connection and query test. It will not validate that the user can access any of the Dremio sources or underlying tables.To save these settings, click Connect.
Debugging
Connect your web browser to dremio_host:9047 on the server. From the SQL Editor, run SELECT 1 FROM (VALUES(1)) to verify that Dremio is installed correctly and that queries are able to execute.
Feature support
For Looker to support some features, your database dialect must also support them.
Dremio supports the following features as of Looker 24.20:
| Feature | Supported? |
|---|---|
| Support Level | Supported |
| Looker (Google Cloud core) | No |
| Symmetric Aggregates | No |
| Derived Tables | Yes |
| Persistent SQL Derived Tables | No |
| Persistent Native Derived Tables | No |
| Stable Views | No |
| Query Killing | Yes |
| SQL-based Pivots | No |
| Timezones | Yes |
| SSL | Yes |
| Subtotals | No |
| JDBC Additional Params | Yes |
| Case Sensitive | Yes |
| Location Type | Yes |
| List Type | No |
| Percentile | No |
| Distinct Percentile | No |
| SQL Runner Show Processes | No |
| SQL Runner Describe Table | Yes |
| SQL Runner Show Indexes | No |
| SQL Runner Select 10 | Yes |
| SQL Runner Count | Yes |
| SQL Explain | No |
| Oauth Credentials | No |
| Context Comments | Yes |
| Connection Pooling | No |
| HLL Sketches | No |
| Aggregate Awareness | No |
| Incremental PDTs | No |
| Milliseconds | Yes |
| Microseconds | No |
| Materialized Views | No |
| Approximate Count Distinct | No |
Dremio 11+ supports the following features as of Looker 24.20:
| Feature | Supported? |
|---|---|
| Support Level | Supported |
| Looker (Google Cloud core) | Yes |
| Symmetric Aggregates | Yes |
| Derived Tables | Yes |
| Persistent SQL Derived Tables | No |
| Persistent Native Derived Tables | No |
| Stable Views | No |
| Query Killing | Yes |
| SQL-based Pivots | No |
| Timezones | Yes |
| SSL | Yes |
| Subtotals | No |
| JDBC Additional Params | Yes |
| Case Sensitive | Yes |
| Location Type | Yes |
| List Type | No |
| Percentile | No |
| Distinct Percentile | No |
| SQL Runner Show Processes | No |
| SQL Runner Describe Table | Yes |
| SQL Runner Show Indexes | No |
| SQL Runner Select 10 | Yes |
| SQL Runner Count | Yes |
| SQL Explain | No |
| Oauth Credentials | No |
| Context Comments | Yes |
| Connection Pooling | No |
| HLL Sketches | No |
| Aggregate Awareness | No |
| Incremental PDTs | No |
| Milliseconds | Yes |
| Microseconds | No |
| Materialized Views | No |
| Approximate Count Distinct | No |
Next steps
After you have completed the database connection, configure authentication options.