Hello,
I'm using low-level datastore API and its Query class to filter
entities.
I put two entities to datastore: the first has set a property 'list'
to null and the second has the same property set to [null] (a list
containing one null value).
The following query will find both of them - that's
To summarize the issue, you cannot search for a null (list) if you
store a null value in any instance of that (list) property. This is
due to the way indexing is done for lists/arrays in the datastore.
The short answer is no. You will have to store another property as a
marker that you have a null
