dimas-b commented on code in PR #8909:
URL: https://github.com/apache/iceberg/pull/8909#discussion_r1422637569
##########
nessie/src/main/java/org/apache/iceberg/nessie/NessieCatalog.java:
##########
@@ -347,4 +339,65 @@ private TableIdentifier identifierWithoutTableReference(
protected Map<String, String> properties() {
return catalogOptions;
}
+
+ @Override
+ protected ViewOperations newViewOps(TableIdentifier identifier) {
+ TableReference tr = parseTableReference(identifier);
+ return new NessieViewOperations(
+ ContentKey.of(
+
org.projectnessie.model.Namespace.of(identifier.namespace().levels()),
tr.getName()),
+ client.withReference(tr.getReference(), tr.getHash()),
+ fileIO);
+ }
+
+ @Override
+ public List<TableIdentifier> listViews(Namespace namespace) {
+ return client.listViews(namespace);
+ }
+
+ @Override
+ public boolean dropView(TableIdentifier identifier) {
+ TableReference tableReference = parseTableReference(identifier);
+ return client
+ .withReference(tableReference.getReference(), tableReference.getHash())
+ .dropView(identifierWithoutTableReference(identifier, tableReference),
false);
+ }
+
+ @Override
+ public void renameView(TableIdentifier from, TableIdentifier to) {
+ TableReference fromTableReference = parseTableReference(from);
+ TableReference toTableReference = parseTableReference(to);
+
+ validateReferenceForRename(fromTableReference, toTableReference,
Content.Type.ICEBERG_VIEW);
+
+ TableIdentifier fromIdentifier =
+ NessieUtil.removeCatalogName(
+ identifierWithoutTableReference(from, fromTableReference), name());
+ TableIdentifier toIdentifier =
+ NessieUtil.removeCatalogName(identifierWithoutTableReference(to,
toTableReference), name());
+ client
+ .withReference(fromTableReference.getReference(),
fromTableReference.getHash())
+ .renameView(fromIdentifier, toIdentifier);
+ }
+
+ private void validateReferenceForRename(
+ TableReference fromTableReference, TableReference toTableReference,
Content.Type type) {
+ String fromReference =
+ fromTableReference.hasReference()
+ ? fromTableReference.getReference()
+ : client.getRef().getName();
+ String toReference =
+ toTableReference.hasReference()
+ ? toTableReference.getReference()
+ : client.getRef().getName();
+ Preconditions.checkArgument(
+ fromReference.equalsIgnoreCase(toReference),
+ "Cannot rename %s '%s' on reference '%s' to '%s' on reference '%s':"
+ + " source and target references must be the same.",
+ NessieUtil.contentTypeString(type).toLowerCase(),
Review Comment:
I did a quick scan of the Iceberg codebase for this, and I do a few places
where `.toLowerCase()` may be a concern:
1) `TableIdentifier.toLoweCase()` is used only in `CachingCatalog`
internally, which is probably ok, since the lower case strings are not exposed
to the outside.
2)
[VectorizedSupport](https://github.com/apache/iceberg/blob/c07f2aabc0a1d02f068ecf1514d2479c0fbdd3b0/mr/src/main/java/org/apache/hadoop/hive/ql/exec/vector/VectorizedSupport.java#L33)
seems like it may be a problem, but I do not really know whether the lower
case data is exposed and how.
3)
[IcebergRecordObjectInspector](https://github.com/apache/iceberg/blob/c07f2aabc0a1d02f068ecf1514d2479c0fbdd3b0/mr/src/main/java/org/apache/iceberg/mr/hive/serde/objectinspector/IcebergRecordObjectInspector.java#L55)
converts field names to lower case, and that seems to be affected by the
locale problem as various case names are accepted as input parameters to its
methods.
4) `jQuery` code uses a log of `toLowerCase()`, but I do not really know how
it is supposed to be used.
@nastra : Do you think this is worth opening an issue? To the best of my
knowledge this kind of case conversion can be problematic only in German and
Turkish locales. The German locale affects only proper German language words
(so it is less of a problem), but the Turkish locale can cause English words to
be converted in unexpected ways. Does Iceberg support using its libraries in
user-defined locales?
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