MaxGekk commented on a change in pull request #29311: URL: https://github.com/apache/spark/pull/29311#discussion_r465499676
########## File path: docs/sql-migration-guide.md ########## @@ -34,6 +34,8 @@ license: | - In Spark 3.1, structs and maps are wrapped by the `{}` brackets in casting them to strings. For instance, the `show()` action and the `CAST` expression use such brackets. In Spark 3.0 and earlier, the `[]` brackets are used for the same purpose. To restore the behavior before Spark 3.1, you can set `spark.sql.legacy.castComplexTypesToString.enabled` to `true`. + - In Spark 3.1, `CAST` converts NULL elements of structures, arrays and maps to "null". In Spark 3.0 or earlier, NULL elements are converted to empty strings. To restore the behavior before Spark 3.1, you can set `spark.sql.legacy.castComplexTypesToString.enabled` to `true`. Review comment: The passive stuff was not recommended by IntelliJ IDEA ;-) Native speakers don't like it. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org