(v24) Manage the Trino Connector

Manage the Trino Connector

The Composer Trino connector connects to a Trino server, and verified with versions 351-390. Trino is the new brand name for Presto.

You might use the Composer Trino connector to connect to a Trino server on which the Trino connector is installed. After the connection is made, you would then be able to visualize and explore data in the PostgreSQL or AWS S3 database using the Composer client.

The Trino connector has been validated and tested with PostgreSQL or AWS S3 databases only. Composer cannot guarantee bug-free operation of the Trino connector with other databases, although you can try to use Trino to connect to them.

Before you can establish a connection from Composer to the Trino server, the Trino connector server must be installed, configured and enabled. See Manage Connectors and Connector Servers for general instructions and Connect to Trino for details specific to the Trino connector.

After setting up the connector, create data sources that specify the necessary connection information and identify the data you want to use. See Manage Data Sources for more information. After you set up your data sources, create dashboards and visuals from from the data in these data sources. See Create Dashboards.

Feature Support

Connector support for specific features is shown in the following table.

Key: Y - Supported; N - Not Supported; N/A - not applicable

Feature	Supported?
Admin-Defined Functions	Y
Box Plots	Y
Custom SQL Queries	N
Derived Fields (Row-Level Expressions)	N
Distinct Counts	Y
Fast Distinct Values	N/A
Group By Multiple Fields	Y
Group By Time	Y
Group By UNIX Time	Y
Histogram Floating Point Values	Y
Histograms	Y
Kerberos Authentication	N
Last Value	Y
Live Mode and Playback	Y
Multivalued Fields	N/A
Nested Fields	N/A
Partitions	N
Pushdown Joins for Fusion Data Sources	N
Schemas	Y
Text Search	N/A
TLS	Y
User Delegation	N
Wildcard Filters	Y
Wildcard Filters, Case-Insensitive Mode	Y
Wildcard Filters, Case-Sensitive Mode	Y

Connect to Trino

Install and configure the Trino connector

1. Install a supported Trino version Refer to Trino's documentation Deploying Trino for more details.

2. Configure the Trino Server. Refer to Trino's documentation Configuring Trino for more details.

3. Make sure that the following files are available in the appropriate Trino server /etc/ folder:

• config.properties

• node.properties

• jvm.config

• log.properties

4. Configure Trino to connect to your data source of choice, such as PostgreSQL or AWS S3.