atris commented on issue #754: LUCENE-8875: Introduce Optimized Collector For Large Number Of Hits URL: https://github.com/apache/lucene-solr/pull/754#issuecomment-508804369 > Actually I don't think we need a growable priority queue. For such large number of hits it'd be probably more efficient to collect hits in an ArrayList first and only turn it into a PQ once there are `numHits` hits? Would that mean collecting all hits in the ArrayList, building a heap out of them iteratively once we exhaust documents and then calling top() numHits times?
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