erenavsarogullari opened a new issue, #20466: URL: https://github.com/apache/datafusion/issues/20466
### Describe the bug Currently, Spark `slice` function accepts Null Arrays and return `Null` for this particular queries. DataFusion-Spark `slice` function also needs to return `NULL` when Null Array is set. **Spark Behavior** (tested with latest Spark master): ``` > SELECT slice(NULL, 1, 2); +-----------------+ |slice(NULL, 1, 2)| +-----------------+ | null| +-----------------+ ``` **DF Behaviour:** Current: ``` query error SELECT slice(NULL, 1, 2); ---- DataFusion error: Internal error: could not cast array of type Null to arrow_array::array::list_array::GenericListArray<i32>. This issue was likely caused by a bug in DataFusion's code. Please help us to resolve this by filing a bug report in our issue tracker: https://github.com/apache/datafusion/issues ``` New: ``` query ? SELECT slice(NULL, 1, 2); ---- NULL ``` ### To Reproduce Explained under description section. ### Expected behavior Explained under description section. ### 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: [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]
