The Metadata Structure step will read the fields of a stream and output their metadata.
If requested the row count of the stream will be calculated as well. This step can be used to document a stream structure using a Pentaho Data Integration transformation.
This step was first introduced in version 3.1.0-RC1 (PDI-1235)
|Output Row Count|| Flag if the rows should be counted
| Field for row count
|| Name of the new field for the row count. The same value will be written to all the result rows.