l0kr opened a new issue, #1588:
URL: https://github.com/apache/datafusion-comet/issues/1588
### Describe the bug
While loading parquet with Spark scan and converting to native then
collecting dataframe without any transformation throws an exception:
`java.lang.ClassCastException: class
org.apache.spark.sql.vectorized.ColumnarBatch cannot be cast to class
org.apache.spark.sql.catalyst.InternalRow`
More detailed stacktrace:
```
Caused by: java.lang.ClassCastException: class
org.apache.spark.sql.vectorized.ColumnarBatch cannot be cast to class
org.apache.spark.sql.catalyst.InternalRow
(org.apache.spark.sql.vectorized.ColumnarBatch and
org.apache.spark.sql.catalyst.InternalRow are in unnamed module of loader 'app')
at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
at
org.apache.spark.sql.execution.SparkPlan.$anonfun$getByteArrayRdd$1(SparkPlan.scala:389)
at
org.apache.spark.rdd.RDD.$anonfun$mapPartitionsInternal$2(RDD.scala:891)
at
org.apache.spark.rdd.RDD.$anonfun$mapPartitionsInternal$2$adapted(RDD.scala:891)
at
org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:367)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:331)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:92)
at
org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:161)
at org.apache.spark.scheduler.Task.run(Task.scala:139)
at
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:554)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1529)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:557)
### Steps to reproduce
```scala
test("Reproduce error with collect") {
withSQLConf(
CometConf.COMET_NATIVE_SCAN_ENABLED.key -> "false",
CometConf.COMET_CONVERT_FROM_PARQUET_ENABLED.key -> "true"
) {
withTempDir { dir =>
var df = spark
.range(10000)
.selectExpr("id as key", "id % 8 as value")
.toDF("key", "value")
df.write.mode("overwrite").parquet(dir.toString)
df = spark.read.parquet(dir.toString)
df.collect()
}
}
}
```
### Expected behavior
No exception thrown
### Additional context
_No response_
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