# DD\_for\_PostgreSQL registry key
The DD\_for\_PostgreSQL key is available if the Talend Change Data Capture for PostgreSQL Source module is installed (see [Installing PostgreSQL source](https://help.qlik.com/talend/en-US/change-data-capture-installation-guide/7.3/installing-postgresql-source)). For each instance followed by Talend Change Data Capture, you will get a subkey.
This subkey will have the instance name.
| Parameter | Description |
| --- | --- |
| **AttemptComWait** | Time period before attempting a reconnection between source
engine and target engine. This time period can be
repeated.
Default value is 30 seconds. |
| **ddSchedulerWait** | Period of time before the Scheduler program relaunches the
planning tasks or the tasks that were executed but are not
finished yet.
Default value is 30 seconds. |
| **DriverName** | This parameter contains the ODBC driver name used to access
the PostgreSQL database. The default value is the Driver
PostgreSQL value found on the machine.
For example, for a version x of PostgreSQL, you should get a
driver name like PostgreSQL
Unicode. |
| **PathSource** | This parameter contains the path where the programs are
installed.
It is recommended not to modify this parameter. |
| **SpvWait** | This parameter contains the time in seconds between two
executions of the Supervisor module. The default value is 30
seconds. |
| **WaitBeforeKill** | Delay in milliseconds between the sending of the stop command
(when stopping is a voluntary action) and the sending of the
terminate command.
Default value is 1000 ms.
For more information on how to use this parameter, contact
Talend [Support](https://www.talend.com/technical-support/?_ga=2.177601517.935794220.1683617077-857954988.1641206411) team. |