rdblue commented on code in PR #4071:
URL: https://github.com/apache/iceberg/pull/4071#discussion_r841293360
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core/src/main/java/org/apache/iceberg/TableMetadata.java:
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@@ -1007,6 +1007,49 @@ public Builder setBranchSnapshot(long snapshotId, String
branch) {
return this;
}
+ public Builder setTag(String tag, SnapshotRef ref) {
+ SnapshotRef existingRef = refs.get(tag);
+ if (existingRef != null && existingRef.equals(ref)) {
+ return this;
+ }
+ long snapshotId = ref.snapshotId();
+ Snapshot snapshot = snapshotsById.get(snapshotId);
+ ValidationException.check(snapshot != null, "Cannot set %s to unknown
snapshot: %s", tag, snapshotId);
+ ValidationException.check(ref.isTag(), "Cannot create tag: %s is a
branch", tag);
Review Comment:
What about `setRef` instead of checking that `setTag` was called with a tag?
Is there a significant difference between how they are handled?
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