[GitHub] [spark] cloud-fan commented on a diff in pull request #41028: [SPARK-43324][SQL] Handle UPDATE commands for delta-based sources

["cloud-fan (via GitHub)" <gi...@apache.org>]

cloud-fan commented on code in PR #41028:
URL: https://github.com/apache/spark/pull/41028#discussion_r1184533565


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/RowDeltaUtils.scala:
##########
@@ -25,4 +25,5 @@ object RowDeltaUtils {
   final val DELETE_OPERATION: Int = 1
   final val UPDATE_OPERATION: Int = 2
   final val INSERT_OPERATION: Int = 3
+  final val ORIGINAL_ROW_ID_VALUE_PREFIX: String = "__original_row_id_"

Review Comment:
   can we briefly introduce how this works?



-- 
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: reviews-unsubscribe@spark.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org