From 479231b4ecccb459d526e0289cbb60a75bc8462c Mon Sep 17 00:00:00 2001
From: Andrey Zvonov <32552679+zvonand@users.noreply.github.com>
Date: Tue, 12 May 2026 17:10:29 +0200
Subject: [PATCH] Merge pull request #1762 from
 Altinity/bugfix/antalya-26.3/1382

Do not read empty namespaces from catalog
---
 src/Databases/DataLake/RestCatalog.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Databases/DataLake/RestCatalog.cpp b/src/Databases/DataLake/RestCatalog.cpp
index 13ef6fcbbc83..b3dcca76d879 100644
--- a/src/Databases/DataLake/RestCatalog.cpp
+++ b/src/Databases/DataLake/RestCatalog.cpp
@@ -647,6 +647,13 @@ void RestCatalog::getNamespacesRecursive(
     {
         chassert(current_namespace.starts_with(base_namespace));
 
+        /// Protection from subnamepsaces with empty names
+        if (current_namespace == base_namespace)
+        {
+            LOG_WARNING(log, "Namespace {} has a subnamespace with empty name. This is an error in catalog implementation.", base_namespace);
+            continue;
+        }
+
         if (stop_condition && stop_condition(current_namespace))
             break;