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Add coments to DimExtractionTopNAlgorithm
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drcrallen committed Jul 1, 2015
1 parent f2919b9 commit 5e19a61
Showing 1 changed file with 1 addition and 1 deletion.
Original file line number Diff line number Diff line change
@@ -19,7 +19,6 @@

import com.google.common.collect.Maps;
import io.druid.query.aggregation.Aggregator;
import io.druid.query.extraction.ExtractionFn;
import io.druid.segment.Capabilities;
import io.druid.segment.Cursor;
import io.druid.segment.DimensionSelector;
@@ -28,6 +27,7 @@
import java.util.Map;

/**
* This has to be its own strategy because the pooled topn algorithm assumes each index is unique, and cannot handle multiple index numerals referencing the same dimension value.
*/
public class DimExtractionTopNAlgorithm extends BaseTopNAlgorithm<Aggregator[][], Map<String, Aggregator[]>, TopNParams>
{

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