Same URL in multiple collections under a meta collection?

Developers Query Processing
1

What happens if the same document URL exists in multiple collections under a meta collection?
Would duplicate results appear, or if not, what logic determines which would appear?

Or would features like de-duplication or result collapsing be required?

2

If the same URL appears in multiple collections in the same meta collection you’ll get duplicates in the search results.

At the moment result collapsing is the only way you can deal with this at query time.

3

Thanks for confirming Peter!