Hello all,

I am developing an app using the Python SDK and I would like to have a
deleted Date property on my model, (which for most items will be
unset).
This will be set when an item is deleted.

I am not using expando models.

Please could someone confirm if my thinking is correct

If I create a new instance and Put() it, it will not have to create an
index record for that column (as there is no value)

If I update an instance with a deletedDate and put() it, then it will
create the index record (and further updates to it will require
updating the index).

If I set it to None, then it will be indexed and there will be a cost
for future updates.

Thanks very much

J
ps. I am asking, as I want to ensure that adding and updating are as
cheap as possible

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