WeichenXu123 commented on code in PR #39985:
URL: https://github.com/apache/spark/pull/39985#discussion_r1108234304
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connector/connect/common/src/main/protobuf/spark/connect/relations.proto:
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@@ -76,6 +76,8 @@ message Relation {
StatFreqItems freq_items = 106;
StatSampleBy sample_by = 107;
+ int64 server_side_dataframe_id = 108;
Review Comment:
> is it the output of model prediction (model.transform)
Yes. This is one case.
Other cases are: Some model attributes and model summary methods might
return spark DataFrame.
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