Filtering date fields in Views - How can I test for NULL When I add a date field to the filter criteria, I get a choice of operators "Is less than", "Is less than or equal to" etc, but no way to test is or is not NULL. 

How do I test for these conditions?
For User "Last access" or "Last login" dates the "Is empty (NULL)" option is not available.

For those particular dates, an alternative is to test for "Greater than 1970-01-02".