[SPARK-55747][SQL] Fix NPE when accessing elements from an array that is null#54546
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stevomitric wants to merge 3 commits intoapache:masterfrom
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[SPARK-55747][SQL] Fix NPE when accessing elements from an array that is null#54546stevomitric wants to merge 3 commits intoapache:masterfrom
stevomitric wants to merge 3 commits intoapache:masterfrom
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stevomitric
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LuciferYang
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Feb 27, 2026
sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
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Co-authored-by: YangJie <yangjie01@baidu.com>
cloud-fan
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Feb 27, 2026
cloud-fan
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Feb 28, 2026
sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala
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What changes were proposed in this pull request?
The
GetArrayItemexpression incorrectly computednullable = falsewhen indexing into arrays withcontainsNull = false(e.g., from split()), even when the array itself could be null. This caused codegen to skip null checks, leading to NPE onarray.numElements()during bounds checking.Why are the changes needed?
To resolve NPE within spark engine.
Does this PR introduce any user-facing change?
No
How was this patch tested?
Tests in this PR.
Was this patch authored or co-authored using generative AI tooling?
No