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Posted to commits@gluten.apache.org by "acvictor (via GitHub)" <gi...@apache.org> on 2025/04/24 05:04:15 UTC
Re: [I] [VL] Result mismatch in CollectList when 'sort by' clause is involved [incubator-gluten]
acvictor commented on issue #8227:
URL: https://github.com/apache/incubator-gluten/issues/8227#issuecomment-2826393787
@NEUpanning @zhztheplayer I now see that for this case the plan is
```
== Physical Plan ==
AdaptiveSparkPlan isFinalPlan=true
+- == Final Plan ==
VeloxColumnarToRow
+- ^(2) HashAggregateTransformer(keys=[_groupingexpression#204], functions=[velox_collect_list(value#195)], isStreamingAgg=false)
+- ^(2) ProjectExecTransformer [value#195, (1 - id#194) AS _groupingexpression#204]
+- ^(2) InputIteratorTransformer[id#194, value#195]
+- ShuffleQueryStage 1
+- ColumnarExchange SinglePartition, REPARTITION_BY_COL, [plan_id=958], [shuffle_writer_type=hash], [OUTPUT] List(id:IntegerType, value:StringType)
+- ^(1) ProjectExecTransformer [id#194, value#195]
+- ^(1) InputIteratorTransformer[id#194, value#195, _nondeterministic#201]
+- ShuffleQueryStage 0
+- ColumnarExchange SinglePartition, REPARTITION_BY_COL, [plan_id=836], [shuffle_writer_type=hash], [OUTPUT] List(id:IntegerType, value:StringType, _nondeterministic:DoubleType)
+- RowToVeloxColumnar
+- LocalTableScan [id#194, value#195, _nondeterministic#201]
+- == Initial Plan ==
SortAggregate(key=[_groupingexpression#204], functions=[velox_collect_list(value#195)])
+- SortAggregate(key=[_groupingexpression#204], functions=[partial_velox_collect_list(value#195)])
+- Sort [_groupingexpression#204 ASC NULLS FIRST], false, 0
+- Project [value#195, (1 - id#194) AS _groupingexpression#204]
+- Sort [id#194 ASC NULLS FIRST, value#195 ASC NULLS FIRST], false, 0
+- Exchange SinglePartition, REPARTITION_BY_COL, [plan_id=787]
+- Project [id#194, value#195]
+- Exchange SinglePartition, REPARTITION_BY_COL, [plan_id=785]
+- LocalTableScan [id#194, value#195, _nondeterministic#201]
```
and the sorting from the initial plan is removed.
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