Merge 7b2e6ce into e7f9bdd

Author: kungasc

ydb/core/tablet_flat/flat_executor.cpp

@@ -4321,7 +4321,7 @@ ui64 TExecutor::BeginCompaction(THolder<NTable::TCompactionParams> params)
 
     comp->Epoch = snapshot->Subset->Epoch(); /* narrows requested to actual */
     comp->Layout.Final = comp->Params->IsFinal;
-    comp->Layout.WriteBTreeIndex = AppData()->FeatureFlags.GetEnableLocalDBBtreeIndex();
+    comp->Layout.WriteBTreeIndex = false; // will be in 24-2: AppData()->FeatureFlags.GetEnableLocalDBBtreeIndex();
     comp->Writer.StickyFlatIndex = !comp->Layout.WriteBTreeIndex;
     comp->Layout.MaxRows = snapshot->Subset->MaxRows();
     comp->Layout.ByKeyFilter = tableInfo->ByKeyFilter;

ydb/core/tablet_flat/flat_part_loader.cpp

@@ -78,7 +78,7 @@ void TLoader::StageParseMeta() noexcept
 
         BTreeGroupIndexes.clear();
         BTreeHistoricIndexes.clear();
-        if (AppData()->FeatureFlags.GetEnableLocalDBBtreeIndex()) {
+        if (false) { // will be in 24-2: AppData()->FeatureFlags.GetEnableLocalDBBtreeIndex()
             for (bool history : {false, true}) {
                 for (const auto &meta : history ? layout.GetBTreeHistoricIndexes() : layout.GetBTreeGroupIndexes()) {
                     NPage::TBtreeIndexMeta converted{{