Add todo notes about score field to add
             options:
                 unsigned: true
     fields:
+#The score computed at attribution time, the sum of all session score divided by proximity in days (1 for sun-thu, 2 for fri-sat, +1 for high temperature, *-1 for bad weather)/abs(DAY(attribution date - session.date))
+#        score:
+#            type: float
         created:
             type: datetime
         updated:
 
         begin:
             type: time
             nullable: true
-        end:
+        length:
             type: time
             nullable: true
+#The day score, 1 for sun-thu, 2 for fri-sat, +1 for high temperature, *-1 for bad weather
+#        score:
+#            type: smallint
+#            nullable: true
         created:
             type: datetime
         updated: