jimczi commented on issue #854: Shared PQ Based Early Termination for Concurrent Search URL: https://github.com/apache/lucene-solr/pull/854#issuecomment-530443453 > Which contract would that be? I believe that today, the contract that we call updateMinCompetitiveScore only when the PQ is full is implied (since there is only one PQ) but I am still not able to understand why that is mandatory. Is there something that I missing? We need to ensure that the minimum score of the slice can be set as the maximum minimum score for all slices, however if the slice is not full this means that some document with smaller scores can still enter the top N no matter what the top hits are in the other slices. So if the total hit threshold is 10 for instance and you ask for 2 top documents per slice, you cannot set the minimum score if only 1 document is inserted in each slice otherwise you can miss documents.
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