Relational Query Question

[xabre]

I have just started working on a side project using flutter and parse. I'm really enjoying the development experience until now.
I have unfortunately run in a bit of a bump on the road when creating relational queries.

Let's take the example from the documentation that has a series of Posts and Comments. Each comment has a pointer to its parent post. Each comment has a pointer to a ParseUser (the author of the comment).

I would like to find all posts where User 'X' did not comment at all.

Is there a way of expressing this query with the current sdk?

Edit: looking at other parse sdks something like doesNotMatchKeyInQuery would solve this query.

[fischerscode]

@xabre
I have not used them jet, but have you tried this functions?

whereMatchesQuery
whereDoesNotMatchQuery

[RodrigoSMarques]

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Thanks.