PostgreSQL Source Connector

The PostgreSQL source connector in DataSync lets you retrieve data from PostgreSQL databases for loading or synchronizing in your data warehouse. After creating all required source connections, configure your destination source to complete the connection setup.

Create a source connection in DataSync

1. Log in to DataSync.
2. From the welcome screen, select Connections.
3. Next to Source Connections, click New.
4. Select PostgreSQL.
5. In the Connection Properties panel, enter the connection properties.
6. (Optional) In the Additional Connection Properties panel, select Add property and enter the parameters for each property.
7. In the Advanced Settings panel, configure the settings, including the Tracking Type and other values according to your requirements.
8. Click Save.

Parameters

Connection properties

Parameter	Description
Description	Unique name for the connection. Example: PostgreSQL
Server	Hostname or IP address of the PostgreSQL server. Example: pgsql.company.com.
Database	Name of the PostgreSQL database. Example: SalesDB.
Port	Port number of the PostgreSQL server. Default: 5432.
Username	Account username for the PostgreSQL connection. Example: postgres
Password	Password for the specified username.
Timezone	Time zone for the database session. Use the offset format (+n or -n) or a specific time zone name. Example: +5
Verbosity	1 – Log queries, row counts, execution start/end, errors. 2 – Includes level 1 plus cache queries, HTTP headers. 3 – Includes level 2 plus request/response bodies. 4 – Includes level 3 plus transport-level communication. 5 – Includes level 4 plus all interface commands.
Enable Pooling	Connection pooling option for performance.
Pool idle timeout	Maximum idle time for connections before returning them to the pool, in seconds.
Max Pool Size	Maximum number of connections allowed in the pool.
Pool wait time	Maximum wait time for connection allocation before error is thrown, in seconds.

Additional connection properties

Additional connection string properties not specified in the Connection Properties panel. For each property added, you can choose Visible or Encrypted. Selecting Encrypted hides the value from the interface and stores it encrypted in the back end, such as when defining passwords.

Parameter	Description
Property	Connection string property that defines the action or behavior. Example: ReadOnly
Value	Value for the property. Example: True
Type	Visibility of the property: Visible or Encrypted.

Advanced settings

Advanced settings control how the PostgreSQL connector tracks changes, handles regional and time configuration, and processes data batches during extraction. These options allow fine‑tuning for performance and accuracy, and should be configured according to your system environment and operational requirements.

Setting	Description
Tracking Type	Method for tracking changes: None or Date.
Region	Region setting for the connector, if required by your setup.
Time Zone	Time zone matching the PostgreSQL application server.
Time Offset	Refresh offset in seconds to compensate for timing issues in record selection. Minimum value is 0; maximum is 3600 seconds.
Batch Size	Quantity of records processed in each batch during extraction. Larger batch sizes increase memory usage but can improve performance up to a point. The default value is 2000 and the maximum should not exceed 10000 records. Adjust according to your network speed and disk performance; in most cases the default (2000) works best.

Example