atris commented on issue #831: LUCENE-8949: Allow LeafFieldComparators to publish Feature Values URL: https://github.com/apache/lucene-solr/pull/831#issuecomment-522885947 > Thanks @atris; could you add some tests for the new API? Could you also describe use cases we are aiming for? Finally, could you also warn in the javadocs for the new method that it may be a somewhat costly API, e.g. for a `SORTED` doc values field. Thanks @mikemccand. I have added tests for the same and updated the documentation. The use case of the feature is that it allows cross segment comparison of values. One use case is when working with concurrent searches, currently, there is no way to globally identify the minimum/maximum of all. This inhibits cool things, like taking impacts to sorted indices for early termination.
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