If I understand lucene correctly, when doing multiple simultaneous searches on the same IndexSearcher, they will basically all do their own index scans and collect results independently. If that's correct, is there a way to batch searches together, so only one index scan is done? What I'd like is a Searcher.search(Query[], Collector[]) type function, where the search only scans over the index once for each collection of (basically unrelated) searches. Is that possible, or does that even make sense?
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