mbutrovich commented on PR #1724:
URL: 
https://github.com/apache/datafusion-comet/pull/1724#issuecomment-2873162728

   > I believe the schema we get at planning time will have the temporary name 
to indicate that this is the column where the row index should be populated.
   
   When I looked into the schema in `CometScanRule` while running 
ParquetRowIndexSuite I didn't see anything that could be uniquely identified as 
the row index column:
   ```
   
StructType(StructField(id,LongType,true),StructField(dummy_col,IntegerType,true),StructField(expected_rowIdx_col,IntegerType,true))
   ```
   


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