stevenzwu commented on code in PR #7685:
URL: https://github.com/apache/iceberg/pull/7685#discussion_r1202406807
##########
spark/v3.3/spark/src/main/java/org/apache/iceberg/spark/source/SparkPositionDeltaWrite.java:
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@@ -435,7 +443,10 @@ public void delete(InternalRow metadata, InternalRow id)
throws IOException {
InternalRow partition = metadata.getStruct(partitionOrdinal,
partitionRowWrapper.size());
StructProjection partitionProjection = partitionProjections.get(specId);
- partitionProjection.wrap(partitionRowWrapper.wrap(partition));
+
+ if (partitionProjection != null) {
Review Comment:
@RussellSpitzer PR #7507 limited its scope to only nested null struct.
Originally, I was also thinking about failing the wrap call if the root struct
is null to avoid the null. Ryan made a valid point that get methods can be
called before wrap is ever called. Hence we still need the null check. Also
Ryan is thinking maybe null root struct value is possible in a collection.
Hence we kept the old behavior of StructProjection wrapping a null root value.
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