Transformer stage

The Transformer stage is a processing stage. It appears under the processing category in the tool palette.

Transformer stages allow you to create transformations to apply to your data. These transformations can be simple or complex and can be applied to individual columns in your data. Transformations are specified using a set of functions. For more information, see Parallel transform functions.

Transformer stages can have a single input and any number of outputs. It can also have a reject link that takes any rows which have not been written to any of the outputs links by reason of a write failure or expression evaluation failure.

Unlike most of the other stages in a Parallel job, the Transformer stage has its own user interface. It does not use the generic interface as described in Stage editors.

When you edit a Transformer stage, the Transformer Editor appears. The left pane represents input data and the right pane, output data.