From 5af116834080440c1ecfe3b043458e35560656de Mon Sep 17 00:00:00 2001
From: alesapin <alesapin@gmail.com>
Date: Fri, 10 Apr 2026 14:11:20 +0000
Subject: [PATCH] Merge pull request #100452 from
 alsugiliazova/fix_listing_on_drop

DataLakeCatalog: avoid full catalog read for `UNKNOWN_TABLE` typo hints
---
 src/Interpreters/DatabaseCatalog.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Interpreters/DatabaseCatalog.cpp b/src/Interpreters/DatabaseCatalog.cpp
index 88cf42f2cec2..8f331cec548b 100644
--- a/src/Interpreters/DatabaseCatalog.cpp
+++ b/src/Interpreters/DatabaseCatalog.cpp
@@ -87,6 +87,7 @@ namespace Setting
 {
     extern const SettingsBool fsync_metadata;
     extern const SettingsBool allow_experimental_analyzer;
+    extern const SettingsBool show_data_lake_catalogs_in_system_tables;
 }
 
 namespace MergeTreeSetting
@@ -2236,9 +2237,12 @@ std::pair<String, String> TableNameHints::getExtendedHintForTable(const String &
 
 Names TableNameHints::getAllRegisteredNames() const
 {
-    if (database)
-        return database->getAllTableNames(context);
-    return {};
+    if (!database)
+        return {};
+    /// DataLakeCatalog::getAllTableNames lists all tables from remote catalog - expensive. Skip when user opted out.
+    if (database->isDatalakeCatalog() && context && !context->getSettingsRef()[Setting::show_data_lake_catalogs_in_system_tables])
+        return {};
+    return database->getAllTableNames(context);
 }
 
 }