First, it's a document store so you can store the way the form is constructed with it (i.e. order of elements, etc).
Second, in Dynamo you could chose the absence of a key to represent "never got here" and a key with a null value to represent "they left this blank". You don't need an empty string.
First, it's a document store so you can store the way the form is constructed with it (i.e. order of elements, etc).
Second, in Dynamo you could chose the absence of a key to represent "never got here" and a key with a null value to represent "they left this blank". You don't need an empty string.
So using null to mean the opposite of what it normally means? I would recommend against anyone using that workaround.
That depends on whether you see null as a marker of not having data or a marker of not knowing if there is data.
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