| Field | Description |
|---|---|
| Source fields | The list of field names from the incoming stream. |
| Target fields | The fields in the output table. When using this step with Spark on AEL, output fields types are converted for processing. For example:
See the Administer Pentaho Data Integration and Analytics document for a complete listing of the conversions. |
| Add (button) | Click Add to move a selected combination of a field name and a column name to the Mappings pane. |
| Delete (button) | Click Delete to move a mapped combination from the Mappings pane back to the Source fields and Target fields panes. |
| Mappings | The field to column mapping designating the incoming field and the table column where the field will be assigned. |
| Auto target selection? | Select to have the step perform mapping to a target. |
| Hide assigned source fields? | Select to remove a field from the Source fields pane when it has been matched and moved to the Mappings pane. |
| Auto source selection | Select to automatically select a field from the Source fields pane when a column name is selected. |
| Hide assigned target fields? | Select to remove a field from the Target fields pane when it has been matched and moved to the Mappings pane. |
| Guess (button) | Click Guess to perform automatic matching of all fields and population of the Mappings pane. |