Sql validating data against data type
To resize a segmented column, you must either create new superprojections and omit the column in the segmentation clause or create a new table (with new column size) and projections.
For example, validation rules could ensure that an email address is valid, while an application rule could ensure that the email address is unique.
See also the users guide over here: Transformation steps.
All fields of this step support metadata injection.
This defines what data should be validated in conjunction with where it will be saved.
To create a default validation object in your table, create the , many applications also have more complex validation that should only be applied after basic validation has completed.