rdblue commented on code in PR #12476:
URL: https://github.com/apache/iceberg/pull/12476#discussion_r1985859647
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core/src/main/java/org/apache/iceberg/ManifestReader.java:
##########
@@ -133,12 +131,18 @@ private <T extends ContentFile<T>> PartitionSpec
readPartitionSpec(InputFile inp
private static <T extends ContentFile<T>> Map<String, String>
readMetadata(InputFile inputFile) {
Map<String, String> metadata;
try {
- try (AvroIterable<ManifestEntry<T>> headerReader =
- Avro.read(inputFile)
+ try (CloseableIterable<ManifestEntry<T>> headerReader =
+ InternalData.read(FileFormat.AVRO, inputFile)
.project(ManifestEntry.getSchema(Types.StructType.of()).select("status"))
.classLoader(GenericManifestEntry.class.getClassLoader())
.build()) {
- metadata = headerReader.getMetadata();
+
+ if (headerReader instanceof InternalData.DataIterable) {
Review Comment:
I'm not sure that this is needed and I'd prefer not to add the interface if
possible. We should not really be using the file metadata to recover things
like the partition spec. I think that this is only used by older code paths
that we didn't migrate to pass the id to spec map through.
At this point, I think we should go see where those methods are used and try
to remove them, instead of adding this.
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