cloud-fan commented on code in PR #47884:
URL: https://github.com/apache/spark/pull/47884#discussion_r1743762965
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sql/connect/common/src/main/protobuf/spark/connect/relations.proto:
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@@ -889,6 +890,18 @@ message Unpivot {
}
}
+// Transpose a DataFrame, switching rows to columns.
+// Transforms the DataFrame such that the values in the specified index column
+// become the new columns of the DataFrame.
+message Transpose {
+ // (Required) The input relation.
+ Relation input = 1;
+
+ // (Optional) A list of columns that will be treated as the indices.
+ // Only single column is supported now.
+ repeated Expression index_columns = 2;
Review Comment:
Do we have a dedicated proto message for attribute?
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