amaliujia commented on code in PR #39182:
URL: https://github.com/apache/spark/pull/39182#discussion_r1056016683
##########
connector/connect/common/src/main/protobuf/spark/connect/relations.proto:
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@@ -598,3 +595,10 @@ message ToSchema {
// The Sever side will update the dataframe with this schema.
DataType schema = 2;
}
+
+// Explicitly sort the underlying plan to make the ordering deterministic for
Sample.
+// Note: this message is only used to randomly splits DataFrame with the
provided weights.
+message DeterministicOrder {
Review Comment:
maybe also document that when there is no explicit ordering then the input
plan is cached?
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