ajantha-bhat commented on code in PR #8673:
URL: https://github.com/apache/iceberg/pull/8673#discussion_r1340280985
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api/src/main/java/org/apache/iceberg/ManifestFile.java:
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@@ -49,7 +49,7 @@ public interface ManifestFile {
Types.LongType.get(),
"Lowest sequence number in the manifest");
Types.NestedField SNAPSHOT_ID =
- optional(
+ required(
Review Comment:
How do we maintain the compatibility of reading old manifestFiles?
The manifest reader will use new schema and try to read old file and it may
fail if the data was not written?
Are we sure we were always writing the data even for this optional field?
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