zhengruifeng commented on code in PR #38819:
URL: https://github.com/apache/spark/pull/38819#discussion_r1034251475


##########
connector/connect/src/main/protobuf/spark/connect/relations.proto:
##########
@@ -440,6 +441,26 @@ message NAFill {
   repeated Expression.Literal values = 3;
 }
 
+
+// Drop rows containing null values.
+// It will invoke 'Dataset.na.drop' (same as 'DataFrameNaFunctions.drop') to 
compute the results.
+message NADrop {

Review Comment:
   nice, will update this doc



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