andygrove opened a new issue, #483: URL: https://github.com/apache/datafusion-comet/issues/483
### Describe the bug I discovered this bug using [Comet Fuzz](https://github.com/apache/datafusion-comet/pull/472). ```sql SELECT lower(c2) FROM test0 ``` [ERROR] Spark and Comet produced different results. ### Spark Plan ``` *(1) Project [lower(c2#2) AS lower(c2)#1546] +- *(1) ColumnarToRow +- FileScan parquet [c2#2] Batched: true, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex(1 paths)[file:/Users/andy/git/apple/comet-fuzz/test0.parquet], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c2:string> ``` ### Comet Plan ``` *(1) ColumnarToRow +- CometProject [lower(c2)#1550], [lower(c2#2) AS lower(c2)#1550] +- CometScan parquet [c2#2] Batched: true, DataFilters: [], Format: CometParquet, Location: InMemoryFileIndex(1 paths)[file:/Users/andy/git/apple/comet-fuzz/test0.parquet], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<c2:string> ``` ### Results Spark produced 200 rows and Comet produced 200 rows. First difference at row 91: Spark: `[ሽ븃靛脉项ໍ绹跅]` Comet: `[ძ訆喀ꓚ疟⓰⡃婳]` ### 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
