Changed-lines coverage:
  PR changed C/C++ lines covered by tests: 92.08% (244/265)

Uncovered changed code (with context):

================================================================================
src/Interpreters/InterpreterRenameQuery.cpp
================================================================================

--- uncovered block 95-95 ---
       93 |             auto policy = access_control.tryRead<RowPolicy>(id);
       94 |             if (policy && (policy->getDatabase() == db) && policy->isForDatabase())
>>     95 |                 return true;
       96 |         }
       97 |         return false;

--- uncovered block 165-165 ---
      163 |             auto policy = access_control.tryRead<RowPolicy>(rekey.id);
      164 |             if (!policy)
>>    165 |                 continue;
      166 | 
      167 |             RowPolicyName dst_name;

--- uncovered block 215-215 ---
      213 |             auto policy = access_control.tryRead<RowPolicy>(rekey.id);
      214 |             if (!policy)
>>    215 |                 continue;
      216 | 
      217 |             /// (4) Transient parking name (phase 1 of the apply) is taken by a non-moving policy.

--- uncovered block 243-249 ---
      241 |             return;
      242 | 
>>    243 |         throw Exception(
>>    244 |             ErrorCodes::NOT_IMPLEMENTED,
>>    245 |             "Cannot move {} to another database {} because a database-wide row policy (ON {}.*) "
>>    246 |             "applies to it and cannot follow it across databases",
>>    247 |             backQuoteIfNeed(from_db) + "." + backQuoteIfNeed(from_name),
>>    248 |             backQuoteIfNeed(to_db),
>>    249 |             backQuoteIfNeed(from_db));
      250 |     }
      251 | 

--- uncovered block 340-354 ---
      338 |         const auto restore = [&]
      339 |         {
>>    340 |             for (const auto & [id, name] : original_names)
      341 |             {
>>    342 |                 try
      343 |                 {
>>    344 |                     access_control.tryUpdate(id, [&](const AccessEntityPtr & entity, const UUID &) -> AccessEntityPtr
      345 |                     {
>>    346 |                         auto updated = typeid_cast<std::shared_ptr<RowPolicy>>(entity->clone());
>>    347 |                         updated->setFullName(name);
>>    348 |                         return updated;
>>    349 |                     });
      350 |                 }
>>    351 |                 catch (...)
      352 |                 {
      353 |                     /// Best-effort rollback; keep restoring the rest.
>>    354 |                     tryLogCurrentException(getLogger("InterpreterRenameQuery"), "Failed to restore row policy binding during rename rollback");
      355 |                 }
      356 |             }

--- uncovered block 387-388 ---
      385 |         catch (...)
      386 |         {
>>    387 |             restore();
>>    388 |             throw;
      389 |         }
      390 |     }
WARNING: Failed to get start time for [Print Uncovered Code] - start time and duration won't be set

--- Coverage counts ---
Lines     : baseline 995,938/1,130,179  ->  current 995,970/1,130,470  (delta +32 / +291)
Functions : baseline 832,434/907,838  ->  current 832,649/907,870  (delta +215 / +32)
Branches  : baseline 323,488/407,184  ->  current 323,349/407,298  (delta -139 / +114)