You can join data from the same source by creating a second instance of the source.
After you create the second source instance, you can join the pipelines from the two source instances. If you want to join unsorted data, you must create two instances of the same source and join the pipelines.
The following figure shows two instances of the same source joined with a Joiner transformation:
When you join two instances of the same source, the Data Integration Service reads the source data for each source instance. Performance can be slower than joining two branches of a pipeline.