Fokko commented on code in PR #11868:
URL: https://github.com/apache/iceberg/pull/11868#discussion_r2178374579
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api/src/main/java/org/apache/iceberg/PartitionSpec.java:
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@@ -132,6 +132,12 @@ public StructType partitionType() {
for (PartitionField field : fields) {
Type sourceType = schema.findType(field.sourceId());
Type resultType = field.transform().getResultType(sourceType);
+
+ // When the source field has been dropped we cannot determine the
type
+ if (resultType == null) {
Review Comment:
@stevenzwu Yes, you're right! This passed because the test was using an
`IdentityTransform`, that returns the `sourceType`. I've updated the code, and
extended the tests to also include the `BucketTransform`.
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