• The hostname for the Presto database server
  • The username/password for the Presto database server
  • The name of the database to use within the Presto database server

Add the following to a .env file in your Cube project:


Environment VariableDescriptionPossible ValuesRequiredSupports multiple data sources?
CUBEJS_DB_HOSTThe host URL for a databaseA valid database host URL
CUBEJS_DB_PORTThe port for the database connectionA valid port number
CUBEJS_DB_USERThe username used to connect to the databaseA valid database username
CUBEJS_DB_PASSThe password used to connect to the databaseA valid database password
CUBEJS_DB_PRESTO_CATALOGThe catalog within Presto to connect toA valid catalog name within a Presto database
CUBEJS_DB_SCHEMAThe schema within the database to connect toA valid schema name within a Presto database
CUBEJS_DB_SSLIf true, enables SSL encryption for database connections from Cubetrue, false
CUBEJS_CONCURRENCYThe number of concurrent connections each queue has to the database. Default is 2A valid number
CUBEJS_DB_MAX_POOLThe maximum number of concurrent database connections to pool. Default is 8A valid number


Measures of type countDistinctApprox can be used in pre-aggregations when using Presto as a source database. To learn more about Presto support for approximate aggregate functions, click here.

To enable SSL-encrypted connections between Cube and Presto, set the CUBEJS_DB_SSL environment variable to true. For more information on how to configure custom certificates, please check out Enable SSL Connections to the Database.

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