comphead opened a new issue, #2256: URL: https://github.com/apache/datafusion-comet/issues/2256
### Describe the bug The `cast StructType to StringType` fails on duplicated columns with auto and native_scan ``` checkSparkAnswerAndOperator( "SELECT CAST(struct(_12, _12) as string) FROM tbl") Expected only Comet native operators, but found Project. plan: *(1) Project [cast(struct(_12, _12#11, _12, _12#11) as string) AS CAST(struct(_12, _12) AS STRING)#59] +- *(1) CometColumnarToRow +- CometScan [native_iceberg_compat] parquet [_12#11] Batched: true, DataFilters: [], Format: CometParquet, Location: InMemoryFileIndex(1 paths)[file:/private/var/folders/6f/_s1vnnd55zgfkx7zlwnrnv0h0000gn/T/spark-76..., PartitionFilters: [], PushedFilters: [], ReadSchema: struct<_12:decimal(20,0)> ``` Found when working on #2175 ### Steps to reproduce _No response_ ### Expected behavior _No response_ ### Additional context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org