cloud-fan commented on code in PR #39925:
URL: https://github.com/apache/spark/pull/39925#discussion_r1102377057
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala:
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@@ -156,6 +156,16 @@ abstract class LogicalPlan
}
}
+object LogicalPlan {
+ // A dedicated tag for Spark Connect.
+ // If an expression (only support UnresolvedAttribute for now) was attached
by this tag,
+ // the analyzer will extract the plan id, try to top-down traverse the query
plan to find
+ // the plan node that also was attached by this tag, and then resolve this
expression with
Review Comment:
```suggestion
// the plan node that also was attached by this tag, and then resolve this
expression with
```
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