Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19873#discussion_r155064881
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/plans/LogicalPlanSuite.scala
---
@@ -23,8 +23,8 @@ import org.apache.spark.sql.catalyst.plans.logical._
import org.apache.spark.sql.types.IntegerType
/**
- * This suite is used to test [[LogicalPlan]]'s `resolveOperators` and
make sure it can correctly
- * skips sub-trees that have already been marked as analyzed.
+ * This suite is used to test [[LogicalPlan]]'s `transformUp` plus
analysis barrier and make sure
--- End diff --
Since both `transformUp ` and `transformDown` work, create a test case
using `transformDown`. Also update the comments here.
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