bryanck commented on code in PR #5235:
URL: https://github.com/apache/iceberg/pull/5235#discussion_r917440086
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core/src/main/java/org/apache/iceberg/TableMetadata.java:
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@@ -985,10 +1012,12 @@ public Builder addSnapshot(Snapshot snapshot) {
return this;
}
+ ValidationException.check(!schemas.isEmpty(), "Attempting to add a
snapshot before a schema is added");
+ ValidationException.check(!specs.isEmpty(), "Attempting to add a
snapshot before a partition spec is added");
+ ValidationException.check(!sortOrders.isEmpty(), "Attempting to add a
snapshot before a sort order is added");
Review Comment:
When building metadata from empty, the table specs aren't initialized. These
assertions ensure they are set before adding files, so files added during a
transaction line up with the table specs.
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