sririshindra commented on code in PR #3719:
URL: https://github.com/apache/polaris/pull/3719#discussion_r2835745588
##########
runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogHandler.java:
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@@ -612,13 +614,80 @@ public LoadTableResponse createTableStaged(
* @return ETagged {@link LoadTableResponse} to uniquely identify the table
metadata
*/
public LoadTableResponse registerTable(Namespace namespace,
RegisterTableRequest request) {
- PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
- authorizeCreateTableLikeUnderNamespaceOperationOrThrow(
- op, TableIdentifier.of(namespace, request.name()));
+ TableIdentifier identifier = TableIdentifier.of(namespace, request.name());
+ boolean overwrite = request.overwrite();
+
+ if (overwrite) {
+ // Resolve the namespace and table (optional) so we can distinguish
overwrite from create.
+ resolutionManifest = newResolutionManifest();
+ resolutionManifest.addPath(
+ new ResolverPath(Arrays.asList(namespace.levels()),
PolarisEntityType.NAMESPACE),
+ namespace);
+ ResolverPath tablePath =
+ new ResolverPath(
+ PolarisCatalogHelpers.tableIdentifierToList(identifier),
+ PolarisEntityType.TABLE_LIKE,
+ true /* optional */);
+ resolutionManifest.addPassthroughPath(tablePath, identifier);
+ resolutionManifest.resolveAll();
+
+ boolean tableExists =
+ resolutionManifest.getResolvedPath(
+ identifier,
+ PolarisEntityType.TABLE_LIKE,
+ PolarisEntitySubType.ICEBERG_TABLE,
+ true)
+ != null;
+ if (tableExists) {
+ authorizeUpdateTableOverwriteOrThrow(identifier);
+ LOGGER.debug(
+ "registerTable: overwrite=true, authorized for UPDATE_TABLE on
existing table");
+ } else {
+ // Table doesn't exist, fall back to REGISTER_TABLE authorization
+ LOGGER.debug(
+ "registerTable: overwrite=true, table not found, falling back to
REGISTER_TABLE");
+ PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
+ authorizeCreateTableLikeUnderNamespaceOperationOrThrow(op, identifier);
+ }
+ } else {
+ // Creating new table requires REGISTER_TABLE privilege
+ PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.REGISTER_TABLE;
+ authorizeCreateTableLikeUnderNamespaceOperationOrThrow(op, identifier);
+ }
+
+ // Handle Polaris-specific overwrite logic
+ if (overwrite) {
+ if (baseCatalog instanceof IcebergCatalog icebergCatalog) {
+ // Use the overwrite-capable registration path for IcebergCatalog
+ Table table = icebergCatalog.registerTable(identifier,
request.metadataLocation(), true);
+ if (table instanceof BaseTable baseTable) {
+ return LoadTableResponse.builder()
+ .withTableMetadata(baseTable.operations().current())
+ .build();
+ }
+ throw new IllegalStateException("Cannot wrap catalog that does not
produce BaseTable");
Review Comment:
You're right, there were two separate entity lookups — one via
getResolvedPath(identifier.namespace()) for storage validation, and a second
via getPassthroughResolvedPath(identifier, ...) to fetch the raw entity. Fixed
in the latest commit: overwriteRegisteredTable now does a single
getPassthroughResolvedPath upfront and uses that resolved path for both
location/storage validation (validateLocationForTableLike,
loadFileIOForTableLike) and the entity update.
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