phillbrown opened a new issue, #14006: URL: https://github.com/apache/druid/issues/14006
### Affected Version 25.0 ### Description Steps to reproduce: 1. Load the [attached](https://github.com/apache/druid/files/11123016/string-to-mv.zip) data using native batch ingestion with the [attached](https://github.com/apache/druid/files/11123016/string-to-mv.zip) spec 2. Run the following query using the SQL native engine ``` SELECT STRING_TO_MV(mvstring, ',') FROM ( SELECT DISTINCT "parent_id", MV_TO_STRING("multi_values", ',') AS mvstring FROM "example" GROUP BY 1, 2 ) ``` The query should return the following error: ``` Error: Unknown exception Cannot coerce [[Ljava.lang.String;] to VARCHAR org.apache.druid.java.util.common.ISE ``` Interestingly the query runs as expected if we use the ms query engine. I'm using the out-the-box auto configuration. -- 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]
