Fix RecordBatch::normalize() null bitmap bug and add StructArray::flatten()#9733
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sqd wants to merge 3 commits intoapache:mainfrom
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Fix RecordBatch::normalize() null bitmap bug and add StructArray::flatten()#9733sqd wants to merge 3 commits intoapache:mainfrom
sqd wants to merge 3 commits intoapache:mainfrom
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…tten() Currently RecordBatch::normalize() has a bug in that the top level struct's null bitmap is not propagated into the resulting normalized arrays' null bitmap. In other words, a child element may suddenly appear non-null, losing the fact that the parent level struct is null at that index. See the test in this change for a bug reproduction. This change fixes that behavior. Also adds StructArray::flatten() which mirrors arrow-cpp's semantics and handles the aforementioned behavior correctly. The fixed RecordBatch::normalize() now uses StructArray::flatten() under the hood.
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@negli-me, since you added the normalize function, could you help review this PR It was added in |
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I think this is the correct github handle, without "e" @ngli-me |
ngli-me
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Apr 19, 2026
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Appreciate the ping, switched companies recently and got stuck in approval purgatory for outside work. Code looks good, tests had no issues for me. Thanks for the fix.
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Currently RecordBatch::normalize() has a bug in that the top level struct's null bitmap is not propagated into the resulting normalized arrays' null bitmap. In other words, a child element may suddenly appear non-null, losing the fact that the parent level struct is null at that index. See the test in this change for a bug reproduction.
This change fixes that behavior. Also adds StructArray::flatten() which mirrors arrow-cpp's semantics and handles the aforementioned behavior correctly. The fixed RecordBatch::normalize() now uses StructArray::flatten() under the hood.
Which issue does this PR close?
Are these changes tested?
Yes
Are there any user-facing changes?
No