aokolnychyi commented on code in PR #59119:
URL: https://github.com/apache/spark/pull/59119#discussion_r4136760808


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/execution/datasources/v2/ChangelogTable.scala:
##########
@@ -42,6 +42,29 @@ case class ChangelogTable(
   // and correct types.
   ChangelogTable.validateSchema(changelog)
 
+  // Capture the metadata used to build the analyzer's CDC post-processing 
operators.
+  private val carryovers = changelog.containsCarryoverRows()

Review Comment:
   Why not follow the name of the methods for variables? I love shorter var 
names but it feels like we are loosing some important context here.
   
   Also, can we group these variables a bit?
   
   ```
   private val containsCarryoverRows = changelog.containsCarryoverRows
   private val containsIntermediateChanges = 
changelog.containsIntermediateChanges
   private val representsUpdateAsDeleteAndInsert = 
changelog.representsUpdateAsDeleteAndInsert
   
   private[sql] val requiresCarryoverRemoval = 
   private[sql] val requiresUpdateDetection =
   private[sql] val requiresNetChangeCollapse = 
   
   private val rowId = ...
   private val rowVersion = ...
   ```



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