Connect to Maxcompute PostgreSQL

Connection Steps

Please follow the steps below to connect to the Maxcompute PostgreSQL data source.

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

2. Select the Maxcompute PostgreSQL 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 Description

   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 takes priority
   Port	The port of the database. If the URL field is filled in, the value in the URL takes priority
   Username	The username for the database
   Password	The password for the database
   Database	The name of the database
   Max Connections	The maximum number of connections in the connection pool
   Prefer to use database comment as dataset title	Choose whether to display the table name or the table comment. When enabled, the title is shown; when disabled, the table comment is shown
   URL	The JDBC URL of the database
   Transaction isolation level for read operations	This setting only affects reading data; writing data still uses the default isolation level
   Hierarchical loading of schema and tables	Default is Off. When enabled, schemas and tables are loaded hierarchically. Only schemas are loaded during connection; 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 display tables under the specified database/schema	When this option is selected and the database field is not empty, only tables under that 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 Maxcompute PostgreSQL connection.

Please Note

1. Parameters marked with * are required; others are optional.
2. You must execute the preset code when connecting to the data source. 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.