Wave generator stage: Input tab (DataStage®)

Use the Input tab to specify details about the incoming data. The Wave Generator stage can have one input link.

The Input tab has the following :
Input name
The name of the link whose details you are viewing. If your stage has multiple input links (only applicable to certain stage types), you can choose another link from the list to view its details.
Columns
Review the columns defined for this link.
Description
Optional. Specify a description of the link. This description appears in any job reports that you generate.