Connecting to Trino

Connection Steps

Please follow the steps below to connect to the Trino data source.

1. Click "New Data Connection" in the upper right corner of the data connection page.

2. Select the Trino data source from the list of data source types.

3. Fill in the required parameters for the data source connection as prompted.

   Connection Configuration Information

   Field	Description
   Name	The name of the connection. Required and unique within the user.
   Host Address	The address of the database. If the URL field is filled in, the value in the URL will take precedence.
   Port	The port of the database. If the URL field is filled in, the value in the URL will take precedence.
   Username	The username for the database.
   Password	The password for the database.
   Database	The name of the database.
   Catalog	The catalog of the database.
   Max Connections	The maximum number of connections in the connection pool.
   SSL	Whether to use SSL for the connection.
   Prefer using database comment as dataset title	Whether to display the table name or the table comment as the title.
   URL	The JDBC URL of the database.
   Additional JDBC Parameters
   URL	Additional JDBC parameters. It is recommended to use the URL to write the complete URL. This parameter is only appended to the automatically generated JDBC URL.
   Hierarchical loading of schema and tables	Default is Off. When enabled, schemas and tables are loaded hierarchically. Only schemas are loaded during connection, and you need to click the schema to load the tables under it.
   Query Timeout (seconds)	Default is 600. When the data volume is large, you can appropriately increase the timeout.
   Only show tables under the specified database/schema	When this option is selected and the database field is not empty, only tables under the specified database will be displayed.

4. After filling in the parameters, click the Validate button to get the validation result (this checks the connectivity between HENGSHI SENSE and the configured data connection; you cannot add the connection if validation fails).

5. After validation passes, click Execute Preset Code to pop up the preset code for this data source, then click the execute button.

6. Click the Add button to add the Trino connection.

Please note

1. Parameters marked with * are required; others are optional.
2. When connecting to a data source, you must execute the preset code. Failure to do so may result in certain functions being unavailable during data analysis. In addition, when upgrading from a version prior to 4.4 to 4.4, you need to execute the preset code for existing data connections in the system.