grundprinzip commented on code in PR #38023:
URL: https://github.com/apache/spark/pull/38023#discussion_r982536156
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connect/src/main/protobuf/spark/connect/expressions.proto:
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@@ -155,4 +156,7 @@ message Expression {
string expression = 1;
}
+ // represent * (e.g. SELECT *)
Review Comment:
```suggestion
// UnresolvedStar is used to expand all the fields of a relation or struct.
```
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