nastra commented on code in PR #8382:
URL: https://github.com/apache/iceberg/pull/8382#discussion_r1314820416
##########
nessie/src/main/java/org/apache/iceberg/nessie/NessieTableOperations.java:
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@@ -55,11 +55,25 @@ public class NessieTableOperations extends
BaseMetastoreTableOperations {
*/
public static final String NESSIE_COMMIT_ID_PROPERTY = "nessie.commit.id";
+ /**
+ * Name of the catalog property that controls whether metadata cleanup
operations (e.g. GC) should
+ * be restricted for Nessie tables (defaults to {@code true}).
+ *
+ * <p>This is an advanced property. Setting it to {@code false} permits
Iceberg code that is
+ * unaware of Nessie-specific behaviours (e.g. non-linear commit histories)
to make metadata
+ * changes considering only the current branch history. It is a reasonable
use case if there is
+ * only one branch defined on the Nessie Server side. If multiple Nessie
branches are involved
+ * disabling this setting may lead to situations where some Nessie commits
point to non-existent
+ * Iceberg metadata, which may break user expectations and/or make data in
other Nessie branches
+ * unreadable.
+ */
+ public static final String RESTRICT_METADATA_CLEANUP_PROPERTY =
"restrict-metadata-cleanup";
Review Comment:
is the issue that users can't override the gc flag because nessie always
disables gc?
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