pan3793 commented on issue #3541:
URL: https://github.com/apache/iceberg/issues/3541#issuecomment-972477426
> The problem with the approach that you mentioned is that we still wouldn't
have the ability to get the CASCADE information from the query.
I can't agree. Spark already handled the nonempty detection, an exception
will throw if drop a nonempty database without CASCADE. Why Iceberg need to
know the CASCADE flag?
```
if (!cascade) {
if (catalog.asTableCatalog.listTables(ns).nonEmpty
|| nsCatalog.listNamespaces(ns).nonEmpty) {
throw
QueryExecutionErrors.cannotDropNonemptyNamespaceError(namespace)
}
}
```
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