rdblue commented on code in PR #4922:
URL: https://github.com/apache/iceberg/pull/4922#discussion_r886265531
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core/src/main/java/org/apache/iceberg/TableMetadata.java:
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@@ -120,13 +120,15 @@ static TableMetadata newTableMetadata(Schema schema,
// break existing tables.
MetricsConfig.fromProperties(properties).validateReferencedColumns(schema);
+ SnapshotRef main = SnapshotRef.branchBuilder(-1).build();
Review Comment:
If the current snapshot is -1, there should be no main ref. In that case,
there is no current state or main. We're moving away from using `-1` as a
special snapshot ID.
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