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ios - Firebase query with limit / offset possible solutions

Is there a way to retrieve data from firebase with limit and offset? For example I have about 1000 elements in my firebaseRef and want to develop some kind of pagination. Is there a way I can do it without loading full list of objects.

For now I'm using queryLimitedToLast(limit) to do it and increase limit for every next page. But this method do not allow me to get pages count.

UPDATE:

One thing I did not mention but it's very important. My data showing from-last-to-first. Imagine it's a simple messenger but with pagination. So I want to show last 20 items, then 20 before these 20 etc.

Thanks.

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