Extension:PageAssessments/page assessments table

mysql> describe page_assessments;
+------------------+------------------+------+-----+---------+-------+
| Field            | Type             | Null | Key | Default | Extra |
+------------------+------------------+------+-----+---------+-------+
| pa_page_id       | int(10) unsigned | NO   | PRI | NULL    |       |
| pa_project_id    | int(10) unsigned | NO   | PRI | NULL    |       |
| pa_class         | varbinary(20)    | YES  |     | NULL    |       |
| pa_importance    | varbinary(20)    | YES  |     | NULL    |       |
| pa_page_revision | int(10) unsigned | NO   |     | NULL    |       |
+------------------+------------------+------+-----+---------+-------+