andygrove opened a new issue, #3330: URL: https://github.com/apache/datafusion-comet/issues/3330
## Description The `get_array_item.sql` SQL file test reveals incorrect results from the native `GetArrayItem` implementation. ## Expected vs Actual ``` == Correct Answer == == Spark Answer == struct<arr[idx]:int> struct<arr[idx]:int> [10] [10] [1] [10] <-- wrong [20] [1] [30] [20] [null] [30] [null] [null] ``` The results are shifted — it appears the first row's value is duplicated and subsequent rows use the previous row's index. This suggests an off-by-one or stale-index bug in the native `GetArrayItem` evaluation. ## Reproduction Run `CometSqlFileTestSuite` — the `get_array_item.sql` test fails with both `parquet.enable.dictionary=false` and `true`. -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
