I need to get the average completion of a task which is recorded using a checkbox field. Since that is stored as TRUE and FALSE instead of 1 and 0 it's proving a bit difficult.
I would have liked to do something like this to get the average that the checkbox was checked per person:
SELECT OwnerId, AVG(MyCheckbox__c) FROM Object GROUP BY ROLLUP(OwnerId) ORDER BY AVG(MyCheckbox__c)
This obviously doesn't work because checkbox fields don't support aggregates.
Are there any options that don't involve making a duplicate field to store the same value in numeric format? I have a hard time believing this isn't a more common issue or that there isn't an approach that I'm just missing.