RussellSpitzer commented on a change in pull request #1744:
URL: https://github.com/apache/iceberg/pull/1744#discussion_r520043874
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File path: core/src/main/java/org/apache/iceberg/avro/PruneColumns.java
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@@ -95,7 +95,7 @@ public Schema record(Schema record, List<String> names,
List<Schema> fields) {
if (hasChange) {
return copyRecord(record, filteredFields);
- } else if (filteredFields.size() == record.getFields().size()) {
+ } else if (record.getFields().size() != 0 && filteredFields.size() ==
record.getFields().size()) {
Review comment:
This is what keeps "data_file" from being pruned on Unpartitioned tables
(since partitionType would be an empty struct)
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