cloud-fan commented on a change in pull request #29317: URL: https://github.com/apache/spark/pull/29317#discussion_r463636749
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala ########## @@ -819,8 +819,10 @@ object JdbcUtils extends Logging { if (null != customSchema && customSchema.nonEmpty) { Review comment: I don't know which JDBC server supports nested schema. But IIUC this feature is to specify the type, and I think it can be used to specify the data type of nested fields as well. ---------------------------------------------------------------- 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