Github user ilooner commented on a diff in the pull request: https://github.com/apache/drill/pull/1101#discussion_r165513161 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/aggregate/HashAggBatch.java --- @@ -255,7 +254,6 @@ private HashAggregator createAggregatorInternal() throws SchemaChangeException, groupByOutFieldIds[i] = container.add(vv); } - int extraNonNullColumns = 0; // each of SUM, MAX and MIN gets an extra bigint column --- End diff -- Ok. I am going to move all the code into one place though. Previously half the code was in HashAggBatch and the other half was in HashAggTemplate. I'll also add a comment that this extra code should be removed after DRILL-5728, and I will also add a comment to DRILL-5728 to reminder the implementer to remove this extra code.
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