Dataphin:Configure the field selection transform component

Procedure

1. In the top menu bar of the Dataphin homepage, choose Developer > Data Integration.

2. In the top menu bar of the integration page, select Project. (In Dev-Prod mode, you need to select Environment).

3. In the left-side navigation pane, click Batch Pipeline. In the Batch Pipeline list, click the offline pipeline that you want to develop to open its configuration page.

4. Click Component Library in the upper-right corner of the page to open the Component Library panel.

5. In the left-side navigation pane of the Component Library panel, select Transform. In the transform component list on the right, find the Field Selection component and drag it to the canvas.

6. Click and drag the icon of the target upstream and downstream components to connect them to the current field selection component.

7. Click the icon in the field selection component card to open the Field Selection Configuration dialog box.

8. In the Field Selection Configuration dialog box, configure the parameters.

   Parameter	Description
   Step Name	The name of the field selection transform component. Dataphin generates a default step name that you can modify. The name must meet the following requirements: It can contain only Chinese characters, letters, underscores (_), and numbers. It can be up to 64 characters in length.
   Input Fields	Lists the input fields from the upstream component output.
   Output Fields	Lists the output fields. Click Field Management: Click the icon to move Selected Input Fields to Unselected Input Fields. Click the icon to move Unselected Input Fields to Selected Input Fields. After you select the input fields, the Output Fields area shows the following information: Serial Number: The sequence number of the input field. Input Field Name, Input Field Type: The name and type of the input field. If the name includes a table name, the table name is also displayed. These values are read-only. Output Field Name: Defaults to the input field name and can be edited. If the name includes a table name, it is displayed as table_name.field_name. If left empty, the input field name is used automatically. Output Field Type: Can be converted to a different data type based on the input field type. See the page for supported conversions. Actions: Click the delete icon in the Actions column to remove a field.

9. Click Confirm to save the Field Selection component configuration.