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Posted to issues@spark.apache.org by "Max Gekk (Jira)" <ji...@apache.org> on 2021/10/13 16:39:00 UTC
[jira] [Resolved] (SPARK-36993) Fix json_tuple throw NPE if fields
exist no foldable null value
[ https://issues.apache.org/jira/browse/SPARK-36993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Max Gekk resolved SPARK-36993.
------------------------------
Fix Version/s: 3.1.3
3.2.0
Resolution: Fixed
Issue resolved by pull request 34268
[https://github.com/apache/spark/pull/34268]
> Fix json_tuple throw NPE if fields exist no foldable null value
> ---------------------------------------------------------------
>
> Key: SPARK-36993
> URL: https://issues.apache.org/jira/browse/SPARK-36993
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.3, 3.1.2, 3.2.0, 3.3.0
> Reporter: XiDuo You
> Assignee: XiDuo You
> Priority: Major
> Fix For: 3.2.0, 3.1.3
>
>
> If json_tuple exists no foldable null field, Spark would throw NPE during eval field.toString.
> e.g. the query will fail with:
> {code:java}
> SELECT json_tuple('{"a":"1"}', if(c1 < 1, null, 'a')) FROM ( SELECT rand() AS c1 );
> {code}
> {code:java}
> Caused by: java.lang.NullPointerException
> at org.apache.spark.sql.catalyst.expressions.JsonTuple.$anonfun$parseRow$2(jsonExpressions.scala:435)
> at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286)
> at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
> at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
> at scala.collection.TraversableLike.map(TraversableLike.scala:286)
> at scala.collection.TraversableLike.map$(TraversableLike.scala:279)
> at scala.collection.AbstractTraversable.map(Traversable.scala:108)
> at org.apache.spark.sql.catalyst.expressions.JsonTuple.parseRow(jsonExpressions.scala:435)
> at org.apache.spark.sql.catalyst.expressions.JsonTuple.$anonfun$eval$6(jsonExpressions.scala:413)
> {code}
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