andygrove opened a new issue, #1036:
URL: https://github.com/apache/datafusion-comet/issues/1036
### Describe the bug
## SQL
```
SELECT c8, length(c8) AS x FROM test0 ORDER BY c8;
```
### Spark Plan
```
AdaptiveSparkPlan isFinalPlan=true
+- == Final Plan ==
*(2) Sort [c8#8 ASC NULLS FIRST], true, 0
+- AQEShuffleRead coalesced
+- ShuffleQueryStage 0
+- Exchange rangepartitioning(c8#8 ASC NULLS FIRST, 200),
ENSURE_REQUIREMENTS, [plan_id=7298]
+- *(1) Project [c8#8, length(cast(c8#8 as string)) AS x#9969]
+- *(1) ColumnarToRow
+- FileScan parquet [c8#8] Batched: true, DataFilters: [],
Format: Parquet, Location: InMemoryFileIndex(1
paths)[file:/home/andy/git/apache/datafusion-comet/fuzz-testing/test0.parquet],
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c8:float>
+- == Initial Plan ==
Sort [c8#8 ASC NULLS FIRST], true, 0
+- Exchange rangepartitioning(c8#8 ASC NULLS FIRST, 200),
ENSURE_REQUIREMENTS, [plan_id=7284]
+- Project [c8#8, length(cast(c8#8 as string)) AS x#9969]
+- FileScan parquet [c8#8] Batched: true, DataFilters: [], Format:
Parquet, Location: InMemoryFileIndex(1
paths)[file:/home/andy/git/apache/datafusion-comet/fuzz-testing/test0.parquet],
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c8:float>
```
### Comet Plan
```
AdaptiveSparkPlan isFinalPlan=true
+- == Final Plan ==
*(1) ColumnarToRow
+- CometSort [c8#8, x#9975], [c8#8 ASC NULLS FIRST]
+- AQEShuffleRead coalesced
+- ShuffleQueryStage 0
+- CometColumnarExchange rangepartitioning(c8#8 ASC NULLS FIRST,
200), ENSURE_REQUIREMENTS, CometColumnarShuffle, [plan_id=7361]
+- CometProject [c8#8, x#9975], [c8#8, length(cast(c8#8 as
string)) AS x#9975]
+- CometScan parquet [c8#8] Batched: true, DataFilters:
[], Format: CometParquet, Location: InMemoryFileIndex(1
paths)[file:/home/andy/git/apache/datafusion-comet/fuzz-testing/test0.parquet],
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c8:float>
+- == Initial Plan ==
CometSort [c8#8, x#9975], [c8#8 ASC NULLS FIRST]
+- CometColumnarExchange rangepartitioning(c8#8 ASC NULLS FIRST, 200),
ENSURE_REQUIREMENTS, CometColumnarShuffle, [plan_id=7348]
+- CometProject [c8#8, x#9975], [c8#8, length(cast(c8#8 as string)) AS
x#9975]
+- CometScan parquet [c8#8] Batched: true, DataFilters: [], Format:
CometParquet, Location: InMemoryFileIndex(1
paths)[file:/home/andy/git/apache/datafusion-comet/fuzz-testing/test0.parquet],
PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c8:float>
```
First difference at row 33:
Spark: `0.0,3`
Comet: `-0.0,4`
### Steps to reproduce
_No response_
### Expected behavior
_No response_
### Additional context
_No response_
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