Expected Behavior

.to_df() should return a dataframe.

Current Behavior

When trying to execute .to_df() after executing .to_df(validation_reference=<some-validation-reference/>) the self.evaluation_function().compute() call in the _to_df_internal() method inside the FileRetrievalJob class fails.

While the Data Quality monitoring feature the is implemented within validation_reference is still in alpha, .to_df() should not be an issue.

Steps to reproduce

I've provided a minimally reproducible example in this notebook

Specifications

• Version: 0.23
• Platform: Python3.8
• Subsystem:

Possible Solution

Following the stack trace it appears that there's an issue with the created date.