hvanhovell commented on code in PR #40013:
URL: https://github.com/apache/spark/pull/40013#discussion_r1111284972
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connector/connect/common/src/main/protobuf/spark/connect/relations.proto:
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@@ -318,10 +318,17 @@ message Drop {
// (Required) The input relation.
Relation input = 1;
- // (Required) columns to drop.
+ // (Optional) columns to drop.
//
- // Should contain at least 1 item.
- repeated Expression cols = 2;
+ // 'columns' and 'column_names' are mutually exclusive.
+ // If set, should contain at least 1 item.
+ repeated Expression columns = 2;
+
+ // (Optional) column names to drop.
+ //
+ // 'columns' and 'column_names' are mutually exclusive.
Review Comment:
Why not make it oneof then?
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