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From Chris Bamford <>
Subject Usage of ToParentBlockJoinCollector
Date Mon, 11 Feb 2013 15:20:17 GMT

Can anyone explain to me how to use ToParentBlockJoinCollector in Lucene 4.0.0?

I can successfully query with a ToParentBlockJoinQuery, but the results come back are not
grouped by parent doc.  I believe that ToParentBlockJoinCollector is the way to go, but I
cannot make it work.
Is there some sample code somewhere I can refer to?


- Chris

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