Trino Connections
Trinois a distributed SQL query engine designed to query large data sets distributed over one or more heterogeneous data sources. For more information, seehttps://trino.io/.
Tip
This connection is in early preview. It is read-only and available only in SaaS product editions. For more information on early previews, see Early Preview Connection Types.
Limitations and Requirements
Note
During normal selection or import of an entire table, you may encounter an error indicating a problem with a specific column. Since some tables require filtering based on a particular column, data from them can only be ingested using custom SQL statements. In this case, the problematic column can be used as a filter in the WHERE clause of a custom SQL statement to ingest the table.
For more information, please consult the CData driver documentation for the specific table.
For more information on using custom SQL, see Create Dataset with SQL.
Note
For filtering date columns, this connection type supports a set of literal functions on dates. You can use these to reduce the volume of data extracted from the database using a custom SQL query. For more information, see the pg_dateliteralfunctions.htm
page in the driver documentation for this connection type.
Trino supports NoAuth and Basic (LDAP) authentication.
Trino has double PATH metadata, that is, Catalog and Schema. You can import tables only after the selection of Catalog and Schema.
trino/mysql/classicmodels
Where,
mysql
is the catalog andclassicmodels
is the Schema.While importing data through custom SQL, insert custom SQL statements as
SELECT * from catalog.schema.tableName
.
Create Connection
via Cloud Portal
When you create the connection, please review the following properties and specify them accordingly:
Connection Property | Description |
---|---|
Host | The host name or IP address of the Trino REST server. Example: 54.190.171.138 |
Enable SSL | Select the checkbox to enable SSL connections to Trino. |
Connect String Options | The following value sets the connection timeout: UseSSL=true;SSLServerCert=* For using with out SSL, a certification file is required, If you enable SSL, use this: * Implies wild card, that is, ignore SSL certificate validation. |
Port | The port for the Trino REST server. The default value is 8080. |
Credential Type | The scheme used for authentication. The following are the available options:
Note If you select Basic, then the User Name and Password fields are displayed. |
User Name | Username to connect to Trino. |
Password | The password associated with the above user name. |
Default Column Data Type Inference | Leave this value as |
For more information, see the driver documentation https://cdn.cdata.com/help/ORK/jdbc/default.htm.
via API
Depending on your product edition, you can create connections of this type. Key information:
"vendor": "trino_db", "vendorName": "Trino DB", "type": "jdbc"
For more information, see
Coming soon.
Data Type Conversions
For more information, see the driver documentation https://cdn.cdata.com/help/ORG/jdbc/default.htm.