dossett commented on a change in pull request #820:
URL: https://github.com/apache/parquet-mr/pull/820#discussion_r496959400
##########
File path:
parquet-protobuf/src/main/java/org/apache/parquet/proto/ProtoWriteSupport.java
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@@ -337,6 +337,12 @@ private void writeAllFields(MessageOrBuilder pb) {
List<FieldDescriptor> fieldDescriptors = messageDescriptor.getFields();
for (FieldDescriptor fieldDescriptor : fieldDescriptors) {
FieldDescriptor.Type type = fieldDescriptor.getType();
+
+ //For a field in a oneOf that isn't set don't write anything
+ if (fieldDescriptor.getContainingOneof() != null &&
!pb.hasField(fieldDescriptor)) {
+ continue;
+ }
Review comment:
Maybe this approach is too simplistic, but it does seem like exactly the
behavior needed.
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