The Schema Editor enables you to modify schema files for any process of your workflow. A schema file is a file that describes the shape of your input or output data and has a file extension of .ddx or .ddl.
You can open the Schema Editor from any TS Quality process. Schema files are displayed in a table format that is easy to view and modify. The Schema Editor can also be used to edit a schema file outside of the current project.
The Schema Editor has the following features:
- Filtering attributes to display.
- Mapping one or more input entities to the output schema.
- Adding and deleting output attributes.
- Editing attribute properties such as name, default value, encoding/type, maximum width, etc.
- Copying and moving attributes within a schema or between schema files.
- Redefining output attributes.
- Regenerating the output schema.
For optimal performance in batch-to-real-time projects, the input schema of a process should be identical to the output schema of the previous process. Therefore, we recommend that if you use the Schema Editor to modify the input schema, you return to the previous process and make the same updates to the output schema. Note that if the schemas do not match, your project will still run but performance will be slower.