yuqi1129 commented on code in PR #11292:
URL: https://github.com/apache/gravitino/pull/11292#discussion_r3321682688
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catalogs/catalog-hive/src/main/java/org/apache/gravitino/catalog/hive/HiveCatalogOperations.java:
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@@ -697,12 +675,21 @@ public Table alterTable(NameIdentifier tableIdent,
TableChange... changes)
String newComment = currentTable.comment();
Map<String, String> updatedProperties = new
HashMap<>(currentTable.properties());
List<Column> updatedColumns = new
ArrayList<>(Arrays.asList(currentTable.columns()));
+ String targetDatabaseName = schemaIdent.name(); // Define a separate
variable to track the target database name.
+
for (TableChange change : changes) {
if (change instanceof TableChange.RenameTable) {
TableChange.RenameTable rename = (TableChange.RenameTable) change;
- Preconditions.checkArgument(
- rename.getNewSchemaName().isEmpty(), "Does not support rename
schema yet");
+ if (rename.getNewSchemaName().isPresent()) { // Check if a new
schema is specified for the table rename
+ String newSchemaName = rename.getNewSchemaName().get();
+ if (!schemaExists( // Validate that the target schema exists
before moving the table
Review Comment:
1. Does this problem only exist in Hive catalogs?
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