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[SPARK-38333][SQL] [3.1]DPP cause DataSourceScanExec java.lang.NullPointer… #35662

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[SPARK-38333][SQL] [3.1]DPP cause DataSourceScanExec java.lang.NullPointer… #35662

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[SPARK-38333][SQL] DPP cause DataSourceScanExec java.lang.NullPointer…
monkeyboy123 Feb 25, 2022
801ee50
add UT
monkeyboy123 Feb 28, 2022
708a168
fix code style
monkeyboy123 Feb 28, 2022
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2 changes: 1 addition & 1 deletion ...lyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/EquivalentExpressions.scala
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Expand Up @@ -147,7 +147,7 @@ class EquivalentExpressions {
expr.find(_.isInstanceOf[LambdaVariable]).isDefined ||
// `PlanExpression` wraps query plan. To compare query plans of `PlanExpression` on executor,
// can cause error like NPE.
(expr.isInstanceOf[PlanExpression[_]] && TaskContext.get != null)
(expr.find(_.isInstanceOf[PlanExpression[_]]).isDefined && TaskContext.get != null)
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@cloud-fan cloud-fan Feb 28, 2022

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I think we should fix it at the master branch as well, as the code does not match the comment.

We can also add a UT in SubexpressionEliminationSuite, which tests addExprTree directly.

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@monkeyboy123 monkeyboy123 Feb 28, 2022

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OK, i will open another pr to fix it at the master branch and add a UT

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@monkeyboy123 monkeyboy123 Mar 1, 2022

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unit test added

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@monkeyboy123 monkeyboy123 Mar 27, 2022

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@cloud-fan How should this pr title be named? Maybe this is a potential problem.

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@cloud-fan cloud-fan Mar 28, 2022

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Do we have a master branch PR now?

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@LuciferYang LuciferYang Mar 28, 2022

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@monkeyboy123 we can replace expr.find(_.isInstanceOf[PlanExpression[_]]).isDefined with TreeNode.exists api now

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@monkeyboy123 monkeyboy123 Mar 30, 2022 •
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Do we have a master branch PR now?

Sorry for late reply，i will open a pr right now.

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@monkeyboy123 monkeyboy123 Mar 30, 2022

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@monkeyboy123 we can replace expr.find(_.isInstanceOf[PlanExpression[_]]).isDefined with TreeNode.exists api now
ok

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@monkeyboy123 monkeyboy123 Mar 30, 2022 •
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Do we have a master branch PR now?

done, new pr SPARK-38333


if (!skip && !addFunc(expr)) {
childrenToRecurse(expr).foreach(addExprTree(_, addFunc))
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