AngersZhuuuu opened a new pull request #31976:
URL: https://github.com/apache/spark/pull/31976
### What changes were proposed in this pull request?
LikeSimplification should handle NULL.
UT will failed before this pr
```
test("SPARK-34814: LikeSimplification should handle NULL") {
withSQLConf(SQLConf.OPTIMIZER_EXCLUDED_RULES.key ->
ConstantFolding.getClass.getName.stripSuffix("$")) {
checkEvaluation(Literal.create("foo", StringType)
.likeAll("%foo%", Literal.create(null, StringType)), null)
}
}
[info] - test *** FAILED *** (2 seconds, 443 milliseconds)
[info] java.lang.NullPointerException:
[info] at
org.apache.spark.sql.catalyst.optimizer.LikeSimplification$.$anonfun$simplifyMultiLike$1(expressions.scala:697)
[info] at
scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:238)
[info] at
scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
[info] at
scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
[info] at
scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
[info] at scala.collection.TraversableLike.map(TraversableLike.scala:238)
[info] at scala.collection.TraversableLike.map$(TraversableLike.scala:231)
[info] at scala.collection.AbstractTraversable.map(Traversable.scala:108)
[info] at
org.apache.spark.sql.catalyst.optimizer.LikeSimplification$.org$apache$spark$sql$catalyst$optimizer$LikeSimplification$$simplifyMultiLike(expressions.scala:697)
[info] at
org.apache.spark.sql.catalyst.optimizer.LikeSimplification$$anonfun$apply$9.applyOrElse(expressions.scala:722)
[info] at
org.apache.spark.sql.catalyst.optimizer.LikeSimplification$$anonfun$apply$9.applyOrElse(expressions.scala:714)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformDown$1(TreeNode.scala:316)
[info] at
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:72)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:316)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$transformDown$3(TreeNode.scala:321)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$mapChildren$1(TreeNode.scala:406)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.mapProductIterator(TreeNode.scala:242)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.mapChildren(TreeNode.scala:404)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.mapChildren(TreeNode.scala:357)
[info] at
org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:321)
[info] at
org.apache.spark.sql.catalyst.plans.QueryPlan.$anonfun$transformExpressionsDown$1(QueryPlan.scala:94)
[info] at
org.apache.spark.sql.catalyst.plans.QueryPlan.$anonfun$mapExpressions$1(QueryPlan.scala:116)
[info] at
org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:72)
```
### Why are the changes needed?
Fix bug
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Added UT
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