singhpk234 commented on code in PR #2341:
URL: https://github.com/apache/polaris/pull/2341#discussion_r2273916299


##########
runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogAdapter.java:
##########
@@ -420,16 +423,45 @@ public Response loadTable(
                     .loadTableIfStale(tableIdentifier, ifNoneMatch, snapshots)
                     .orElseThrow(() -> new 
WebApplicationException(Response.Status.NOT_MODIFIED));
           } else {
-            response =
+            LoadTableResponse originalResponse =
                 catalog
                     .loadTableWithAccessDelegationIfStale(tableIdentifier, 
ifNoneMatch, snapshots)
                     .orElseThrow(() -> new 
WebApplicationException(Response.Status.NOT_MODIFIED));
+
+            if (delegationModes.contains(VENDED_CREDENTIALS)) {
+              response =
+                  injectRefreshVendedCredentialProperties(
+                      originalResponse,
+                      new 
PolarisResourcePaths(prefix).credentialsPath(tableIdentifier));
+            } else {
+              response = originalResponse;
+            }
           }
 
           return tryInsertETagHeader(Response.ok(response), response, 
namespace, table).build();
         });
   }
 
+  private LoadTableResponse injectRefreshVendedCredentialProperties(
+      LoadTableResponse originalResponse, String credentialsEndpoint) {
+    LoadTableResponse.Builder loadResponseBuilder =
+        
LoadTableResponse.builder().withTableMetadata(originalResponse.tableMetadata());
+    loadResponseBuilder.addAllConfig(originalResponse.config());
+    loadResponseBuilder.addAllCredentials(originalResponse.credentials());
+    loadResponseBuilder.addConfig(

Review Comment:
   what about azure ? do we want to do it in follow-up ? also should we only 
inject this when creds are for aws ?



##########
runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogAdapter.java:
##########
@@ -420,16 +423,45 @@ public Response loadTable(
                     .loadTableIfStale(tableIdentifier, ifNoneMatch, snapshots)
                     .orElseThrow(() -> new 
WebApplicationException(Response.Status.NOT_MODIFIED));
           } else {
-            response =
+            LoadTableResponse originalResponse =
                 catalog
                     .loadTableWithAccessDelegationIfStale(tableIdentifier, 
ifNoneMatch, snapshots)
                     .orElseThrow(() -> new 
WebApplicationException(Response.Status.NOT_MODIFIED));
+
+            if (delegationModes.contains(VENDED_CREDENTIALS)) {
+              response =
+                  injectRefreshVendedCredentialProperties(
+                      originalResponse,
+                      new 
PolarisResourcePaths(prefix).credentialsPath(tableIdentifier));
+            } else {
+              response = originalResponse;
+            }
           }
 
           return tryInsertETagHeader(Response.ok(response), response, 
namespace, table).build();
         });
   }
 
+  private LoadTableResponse injectRefreshVendedCredentialProperties(
+      LoadTableResponse originalResponse, String credentialsEndpoint) {
+    LoadTableResponse.Builder loadResponseBuilder =
+        
LoadTableResponse.builder().withTableMetadata(originalResponse.tableMetadata());

Review Comment:
   do we need to update metadata-location too ?



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