kbendick commented on a change in pull request #3573:
URL: https://github.com/apache/iceberg/pull/3573#discussion_r752006300
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File path:
spark/v3.2/spark/src/main/java/org/apache/iceberg/spark/SparkCatalog.java
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@@ -370,13 +371,21 @@ public void alterNamespace(String[] namespace,
NamespaceChange... changes) throw
}
@Override
- public boolean dropNamespace(String[] namespace) throws
NoSuchNamespaceException {
+ // Spark assumes that catalogs CASCADE by default. So we have to eagerly
+ // attempt to drop namespaces and tables, but the CASCADE keyword is still
+ // required to actually drop tables and namespaces.
+ //
+ // TODO - Somehow this got rid of the checked NoSuchNamespaceException.
+ // I don't think we should check for it and throw if it's not present,
+ // as we don't know if the user used `if not exists` or not.
Review comment:
Should look into why this isn't thrown anymore.... Given that we're
relying on Spark to handle the `ifExists` type behavior and we don't know if
the user used that, it doesn't quite make sense to just check if the
`namespace` exists or not.
But it does seem like this should be a possibility. I think it's just no
longer throwing _our_ `NoSuchNamespaceException`, but the one from Spark (which
comes from Scala and thus isn't checked).
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