zhengruifeng commented on code in PR #39068:
URL: https://github.com/apache/spark/pull/39068#discussion_r1050509665
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connector/connect/common/src/main/protobuf/spark/connect/expressions.proto:
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@@ -167,4 +169,26 @@ message Expression {
// (Optional) Alias metadata expressed as a JSON map.
optional string metadata = 3;
}
+
+ message LambdaFunction {
Review Comment:
actually, we can remove `ExpressionString`, `UnresolvedStar`,
`UnresolvedRegex`, `Cast` in the same way.
But now I'm not sure whether it is the correct way.
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