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 if-null check on the root struct object. 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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