Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14158#discussion_r119007096
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -258,6 +258,9 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] with Logging {
* Refreshes (or invalidates) any metadata/data cached in the plan
recursively.
*/
def refresh(): Unit = children.foreach(_.refresh())
+
+ // Record the original sql text in the top logical plan for checking in
the web UI.
+ var sqlText: Option[String] = None
--- End diff --
Using `var` for this should be avoided.
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