diff --git a/ydb/core/tx/columnshard/columnshard_schema.h b/ydb/core/tx/columnshard/columnshard_schema.h
index 2a507e45c6fc..646a4409d737 100644
--- a/ydb/core/tx/columnshard/columnshard_schema.h
+++ b/ydb/core/tx/columnshard/columnshard_schema.h
@@ -1070,6 +1070,12 @@ class TColumnChunkLoadContextV2 {
         MetadataProto = rowset.template GetValue<NColumnShard::Schema::IndexColumnsV2::Metadata>();
     }
 
+    TColumnChunkLoadContextV2(const ui64 pathId, const ui64 portionId, const NKikimrTxColumnShard::TIndexPortionAccessor& proto)
+        : PathId(pathId)
+        , PortionId(portionId)
+        , MetadataProto(proto.SerializeAsString()) {
+    }
+
     std::vector<TColumnChunkLoadContextV1> BuildRecordsV1() const {
         std::vector<TColumnChunkLoadContextV1> records;
         NKikimrTxColumnShard::TIndexPortionAccessor metaProto;
diff --git a/ydb/core/tx/columnshard/engines/db_wrapper.cpp b/ydb/core/tx/columnshard/engines/db_wrapper.cpp
index dba06b061120..60544f24190f 100644
--- a/ydb/core/tx/columnshard/engines/db_wrapper.cpp
+++ b/ydb/core/tx/columnshard/engines/db_wrapper.cpp
@@ -46,10 +46,12 @@ bool TDbWrapper::Load(TInsertTableAccessor& insertTable, const TInstant& loadTim
 }
 
 void TDbWrapper::WriteColumn(const NOlap::TPortionInfo& portion, const TColumnRecord& row, const ui32 firstPKColumnId) {
+    if (!AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage() && !AppDataVerified().ColumnShardConfig.GetColumnChunksV0Usage()) {
+        return;
+    }
     NIceDb::TNiceDb db(Database);
     using IndexColumnsV1 = NColumnShard::Schema::IndexColumnsV1;
     auto rowProto = row.GetMeta().SerializeToProto();
-    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage() || AppDataVerified().ColumnShardConfig.GetColumnChunksV0Usage());
     if (AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage()) {
         db.Table<IndexColumnsV1>()
             .Key(portion.GetPathId(), portion.GetPortionId(), row.ColumnId, row.Chunk)
@@ -118,16 +120,16 @@ void TDbWrapper::EraseColumn(const NOlap::TPortionInfo& portion, const TColumnRe
     }
 }
 
-bool TDbWrapper::LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV1&&)>& callback) {
+bool TDbWrapper::LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV2&&)>& callback) {
     NIceDb::TNiceDb db(Database);
-    using IndexColumnsV1 = NColumnShard::Schema::IndexColumnsV1;
+    using IndexColumnsV2 = NColumnShard::Schema::IndexColumnsV2;
     const auto pred = [&](auto& rowset) {
         if (!rowset.IsReady()) {
             return false;
         }
 
         while (!rowset.EndOfSet()) {
-            NOlap::TColumnChunkLoadContextV1 chunkLoadContext(rowset);
+            NOlap::TColumnChunkLoadContextV2 chunkLoadContext(rowset);
             callback(std::move(chunkLoadContext));
 
             if (!rowset.Next()) {
@@ -137,10 +139,10 @@ bool TDbWrapper::LoadColumns(const std::optional<ui64> pathId, const std::functi
         return true;
     };
     if (pathId) {
-        auto rowset = db.Table<IndexColumnsV1>().Prefix(*pathId).Select();
+        auto rowset = db.Table<IndexColumnsV2>().Prefix(*pathId).Select();
         return pred(rowset);
     } else {
-        auto rowset = db.Table<IndexColumnsV1>().Select();
+        auto rowset = db.Table<IndexColumnsV2>().Select();
         return pred(rowset);
     }
 }
@@ -290,7 +292,6 @@ TConclusion<THashMap<ui64, std::map<NOlap::TSnapshot, TGranuleShardingInfo>>> TD
 void TDbWrapper::WriteColumns(const NOlap::TPortionInfo& portion, const NKikimrTxColumnShard::TIndexPortionAccessor& proto) {
     NIceDb::TNiceDb db(Database);
     using IndexColumnsV2 = NColumnShard::Schema::IndexColumnsV2;
-    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage());
     db.Table<IndexColumnsV2>()
         .Key(portion.GetPathId(), portion.GetPortionId())
         .Update(NIceDb::TUpdate<IndexColumnsV2::Metadata>(proto.SerializeAsString()));
diff --git a/ydb/core/tx/columnshard/engines/db_wrapper.h b/ydb/core/tx/columnshard/engines/db_wrapper.h
index d8a3a00dbcec..dacf770e78ea 100644
--- a/ydb/core/tx/columnshard/engines/db_wrapper.h
+++ b/ydb/core/tx/columnshard/engines/db_wrapper.h
@@ -14,7 +14,7 @@ class TDatabase;
 
 namespace NKikimr::NOlap {
 
-class TColumnChunkLoadContextV1;
+class TColumnChunkLoadContextV2;
 class TIndexChunkLoadContext;
 class TInsertedData;
 class TCommittedData;
@@ -49,7 +49,7 @@ class IDbWrapper {
 
     virtual void WriteColumn(const TPortionInfo& portion, const TColumnRecord& row, const ui32 firstPKColumnId) = 0;
     virtual void EraseColumn(const TPortionInfo& portion, const TColumnRecord& row) = 0;
-    virtual bool LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV1&&)>& callback) = 0;
+    virtual bool LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV2&&)>& callback) = 0;
 
     virtual void WritePortion(const NOlap::TPortionInfo& portion) = 0;
     virtual void ErasePortion(const NOlap::TPortionInfo& portion) = 0;
@@ -89,7 +89,7 @@ class TDbWrapper : public IDbWrapper {
     void WriteColumn(const NOlap::TPortionInfo& portion, const TColumnRecord& row, const ui32 firstPKColumnId) override;
     void WriteColumns(const NOlap::TPortionInfo& portion, const NKikimrTxColumnShard::TIndexPortionAccessor& proto) override;
     void EraseColumn(const NOlap::TPortionInfo& portion, const TColumnRecord& row) override;
-    bool LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV1&&)>& callback) override;
+    bool LoadColumns(const std::optional<ui64> pathId, const std::function<void(TColumnChunkLoadContextV2&&)>& callback) override;
 
     virtual void WriteIndex(const TPortionInfo& portion, const TIndexChunk& row) override;
     virtual void EraseIndex(const TPortionInfo& portion, const TIndexChunk& row) override;
diff --git a/ydb/core/tx/columnshard/engines/storage/granule/granule.cpp b/ydb/core/tx/columnshard/engines/storage/granule/granule.cpp
index a81477f06ba1..32fa3ec70859 100644
--- a/ydb/core/tx/columnshard/engines/storage/granule/granule.cpp
+++ b/ydb/core/tx/columnshard/engines/storage/granule/granule.cpp
@@ -243,9 +243,11 @@ bool TGranuleMeta::TestingLoad(IDbWrapper& db, const TVersionedIndex& versionedI
 
     {
         TPortionInfo::TSchemaCursor schema(versionedIndex);
-        if (!db.LoadColumns(PathId, [&](TColumnChunkLoadContextV1&& loadContext) {
+        if (!db.LoadColumns(PathId, [&](TColumnChunkLoadContextV2&& loadContext) {
                 auto* constructor = constructors.GetConstructorVerified(loadContext.GetPortionId());
-                constructor->LoadRecord(std::move(loadContext));
+                for (auto&& i : loadContext.BuildRecordsV1()) {
+                    constructor->LoadRecord(std::move(i));
+                }
             })) {
             return false;
         }
diff --git a/ydb/core/tx/columnshard/engines/storage/granule/stages.cpp b/ydb/core/tx/columnshard/engines/storage/granule/stages.cpp
index e099ce624385..84c7ffd6d0c7 100644
--- a/ydb/core/tx/columnshard/engines/storage/granule/stages.cpp
+++ b/ydb/core/tx/columnshard/engines/storage/granule/stages.cpp
@@ -31,14 +31,14 @@ bool TGranuleColumnsReader::DoExecute(NTabletFlatExecutor::TTransactionContext&
     TDbWrapper db(txc.DB, &*DsGroupSelector);
     TPortionInfo::TSchemaCursor schema(*VersionedIndex);
     Context->ClearRecords();
-    return db.LoadColumns(Self->GetPathId(), [&](TColumnChunkLoadContextV1&& loadContext) {
+    return db.LoadColumns(Self->GetPathId(), [&](TColumnChunkLoadContextV2&& loadContext) {
         Context->Add(std::move(loadContext));
     });
 }
 
 bool TGranuleColumnsReader::DoPrecharge(NTabletFlatExecutor::TTransactionContext& txc, const TActorContext& /*ctx*/) {
     NIceDb::TNiceDb db(txc.DB);
-    return db.Table<NColumnShard::Schema::IndexColumnsV1>().Prefix(Self->GetPathId()).Select().IsReady();
+    return db.Table<NColumnShard::Schema::IndexColumnsV2>().Prefix(Self->GetPathId()).Select().IsReady();
 }
 
 bool TGranuleIndexesReader::DoExecute(NTabletFlatExecutor::TTransactionContext& txc, const TActorContext& /*ctx*/) {
diff --git a/ydb/core/tx/columnshard/engines/storage/granule/stages.h b/ydb/core/tx/columnshard/engines/storage/granule/stages.h
index aabf763e0ed1..2dcac36dc4b0 100644
--- a/ydb/core/tx/columnshard/engines/storage/granule/stages.h
+++ b/ydb/core/tx/columnshard/engines/storage/granule/stages.h
@@ -58,6 +58,11 @@ class TPortionsLoadContext {
         auto& constructor = MutableConstructor(chunk.GetPortionId());
         constructor.MutableRecords().emplace_back(std::move(chunk));
     }
+    void Add(TColumnChunkLoadContextV2&& chunk) {
+        for (auto&& i : chunk.BuildRecordsV1()) {
+            Add(std::move(i));
+        }
+    }
 };
 
 class TGranuleOnlyPortionsReader: public ITxReader {
diff --git a/ydb/core/tx/columnshard/engines/ut/ut_insert_table.cpp b/ydb/core/tx/columnshard/engines/ut/ut_insert_table.cpp
index 5b34a9b636ee..718e416edf29 100644
--- a/ydb/core/tx/columnshard/engines/ut/ut_insert_table.cpp
+++ b/ydb/core/tx/columnshard/engines/ut/ut_insert_table.cpp
@@ -58,7 +58,7 @@ class TTestInsertTableDB : public IDbWrapper {
     }
     void EraseColumn(const TPortionInfo&, const TColumnRecord&) override {
     }
-    bool LoadColumns(const std::optional<ui64> /*reqPathId*/, const std::function<void(TColumnChunkLoadContextV1&&)>&) override {
+    bool LoadColumns(const std::optional<ui64> /*reqPathId*/, const std::function<void(TColumnChunkLoadContextV2&&)>&) override {
         return true;
     }
 
diff --git a/ydb/core/tx/columnshard/engines/ut/ut_logs_engine.cpp b/ydb/core/tx/columnshard/engines/ut/ut_logs_engine.cpp
index 475c51a93fa5..84bde8d4f699 100644
--- a/ydb/core/tx/columnshard/engines/ut/ut_logs_engine.cpp
+++ b/ydb/core/tx/columnshard/engines/ut/ut_logs_engine.cpp
@@ -35,11 +35,16 @@ std::shared_ptr<NDataLocks::TManager> EmptyDataLocksManager = std::make_shared<N
 
 class TTestDbWrapper: public IDbWrapper {
 private:
-    std::map<TPortionAddress, std::map<TChunkAddress, TColumnChunkLoadContextV1>> LoadContexts;
+    std::map<TPortionAddress, TColumnChunkLoadContextV2> LoadContexts;
 
 public:
-    virtual void WriteColumns(const NOlap::TPortionInfo& /*portion*/, const NKikimrTxColumnShard::TIndexPortionAccessor& /*proto*/) override {
-
+    virtual void WriteColumns(const NOlap::TPortionInfo& portion, const NKikimrTxColumnShard::TIndexPortionAccessor& proto) override {
+        auto it = LoadContexts.find(portion.GetAddress());
+        if (it == LoadContexts.end()) {
+            LoadContexts.emplace(portion.GetAddress(), TColumnChunkLoadContextV2(portion.GetPathId(), portion.GetPortionId(), proto));
+        } else {
+            it->second = TColumnChunkLoadContextV2(portion.GetPathId(), portion.GetPortionId(), proto);
+        }
     }
 
     virtual const IBlobGroupSelector* GetDsGroupSelector() const override {
@@ -124,11 +129,6 @@ class TTestDbWrapper: public IDbWrapper {
         }
 
         auto& data = Indices[0].Columns[portion.GetPathId()];
-        NOlap::TColumnChunkLoadContextV1 loadContext(portion.GetPathId(), portion.GetPortionId(), row.GetAddress(), row.BlobRange, rowProto);
-        auto itInsertInfo = LoadContexts[portion.GetAddress()].emplace(row.GetAddress(), loadContext);
-        if (!itInsertInfo.second) {
-            itInsertInfo.first->second = loadContext;
-        }
         auto it = data.find(portion.GetPortionId());
         if (it == data.end()) {
             it = data.emplace(portion.GetPortionId(), TPortionInfoConstructor(portion, true, true)).first;
@@ -173,7 +173,7 @@ class TTestDbWrapper: public IDbWrapper {
         portionLocal.TestMutableRecords().swap(filtered);
     }
 
-    bool LoadColumns(const std::optional<ui64> reqPathId, const std::function<void(TColumnChunkLoadContextV1&&)>& callback) override {
+    bool LoadColumns(const std::optional<ui64> reqPathId, const std::function<void(TColumnChunkLoadContextV2&&)>& callback) override {
         auto& columns = Indices[0].Columns;
         for (auto& [pathId, portions] : columns) {
             if (pathId && *reqPathId != pathId) {
@@ -182,14 +182,10 @@ class TTestDbWrapper: public IDbWrapper {
             for (auto& [portionId, portionLocal] : portions) {
                 auto copy = portionLocal.MakeCopy();
                 copy.TestMutableRecords().clear();
-                for (const auto& rec : portionLocal.GetRecords()) {
-                    auto address = copy.GetPortionConstructor().GetAddress();
-                    auto itContextLoader = LoadContexts[address].find(rec.GetAddress());
-                    Y_ABORT_UNLESS(itContextLoader != LoadContexts[address].end());
-                    auto copy = itContextLoader->second;
-                    callback(std::move(copy));
-                    LoadContexts[address].erase(itContextLoader);
-                }
+                auto it = LoadContexts.find(portionLocal.GetPortionConstructor().GetAddress());
+                AFL_VERIFY(it != LoadContexts.end());
+                callback(std::move(it->second));
+                LoadContexts.erase(it);
             }
         }
         return true;
diff --git a/ydb/core/tx/columnshard/normalizer/portion/chunks_actualization.cpp b/ydb/core/tx/columnshard/normalizer/portion/chunks_actualization.cpp
index 2f37c83bc33d..b66b199a797f 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/chunks_actualization.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/chunks_actualization.cpp
@@ -83,6 +83,10 @@ TConclusion<std::vector<INormalizerTask::TPtr>> TNormalizer::DoInit(
     using namespace NColumnShard;
     NIceDb::TNiceDb db(txc.DB);
 
+    if (!AppDataVerified().ColumnShardConfig.GetColumnChunksV0Usage()) {
+        return std::vector<INormalizerTask::TPtr>();
+    }
+
     bool ready = true;
     ready = ready & Schema::Precharge<Schema::IndexColumns>(db, txc.DB.GetScheme());
     ready = ready & Schema::Precharge<Schema::IndexPortions>(db, txc.DB.GetScheme());
diff --git a/ydb/core/tx/columnshard/normalizer/portion/clean_empty.cpp b/ydb/core/tx/columnshard/normalizer/portion/clean_empty.cpp
index 9f98b179cdd7..ec0be99fd8dc 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/clean_empty.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/clean_empty.cpp
@@ -234,13 +234,16 @@ std::optional<std::vector<std::vector<std::shared_ptr<IDBModifier>>>> GetPortion
     std::vector<TPortionAddress> pack;
     std::map<TPortionAddress, std::vector<TIterator>> iteration;
     const bool v0Usage = AppDataVerified().ColumnShardConfig.GetColumnChunksV0Usage();
-    const ui32 SourcesCount = v0Usage ? 4 : 3;
+    const bool v1Usage = AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage();
+    ui32 SourcesCount = 2;
     if (v0Usage) {
+        ++SourcesCount;
         if (v0Portions.size()) {
             iteration[v0Portions.begin()->first].emplace_back(v0Portions);
         }
     }
-    {
+    if (v1Usage) {
+        ++SourcesCount;
         if (v1Portions.size()) {
             iteration[v1Portions.begin()->first].emplace_back(v1Portions);
         }
@@ -312,7 +315,6 @@ class TChanges: public INormalizerChanges {
 TConclusion<std::vector<INormalizerTask::TPtr>> TCleanEmptyPortionsNormalizer::DoInit(
     const TNormalizationController&, NTabletFlatExecutor::TTransactionContext& txc) {
     using namespace NColumnShard;
-    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage());
     auto batchesToDelete = GetPortionsToDelete(txc, DsGroupSelector);
     if (!batchesToDelete) {
         return TConclusionStatus::Fail("Not ready");
diff --git a/ydb/core/tx/columnshard/normalizer/portion/leaked_blobs.cpp b/ydb/core/tx/columnshard/normalizer/portion/leaked_blobs.cpp
index d8e0d5f48428..811cae0957ae 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/leaked_blobs.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/leaked_blobs.cpp
@@ -221,9 +221,11 @@ TConclusionStatus TLeakedBlobsNormalizer::LoadPortionBlobIds(
     }
     if (Records.empty()) {
         THashMap<ui64, std::vector<TColumnChunkLoadContextV1>> recordsLocal;
-        if (!wrapper.LoadColumns(std::nullopt, [&](TColumnChunkLoadContextV1&& chunk) {
+        if (!wrapper.LoadColumns(std::nullopt, [&](TColumnChunkLoadContextV2&& chunk) {
                 const ui64 portionId = chunk.GetPortionId();
-                recordsLocal[portionId].emplace_back(std::move(chunk));
+                for (auto&& i : chunk.BuildRecordsV1()) {
+                    recordsLocal[portionId].emplace_back(std::move(i));
+                }
             })) {
             return TConclusionStatus::Fail("repeated read db");
         }
diff --git a/ydb/core/tx/columnshard/normalizer/portion/normalizer.cpp b/ydb/core/tx/columnshard/normalizer/portion/normalizer.cpp
index 2606903d86b2..bf4a6f5e89e1 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/normalizer.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/normalizer.cpp
@@ -110,7 +110,7 @@ TConclusionStatus TPortionsNormalizerBase::InitColumns(
     const NColumnShard::TTablesManager& tablesManager, NIceDb::TNiceDb& db, THashMap<ui64, TPortionAccessorConstructor>& portions) {
     using namespace NColumnShard;
     auto columnsFilter = GetColumnsFilter(tablesManager.GetPrimaryIndexSafe().GetVersionedIndex().GetLastSchema());
-    auto rowset = db.Table<Schema::IndexColumnsV1>().Select();
+    auto rowset = db.Table<Schema::IndexColumnsV2>().Select();
     if (!rowset.IsReady()) {
         return TConclusionStatus::Fail("Not ready");
     }
@@ -126,8 +126,10 @@ TConclusionStatus TPortionsNormalizerBase::InitColumns(
     };
 
     while (!rowset.EndOfSet()) {
-        NOlap::TColumnChunkLoadContextV1 chunkLoadContext(rowset);
-        initPortion(std::move(chunkLoadContext));
+        NOlap::TColumnChunkLoadContextV2 chunkLoadContext(rowset);
+        for (auto&& i : chunkLoadContext.BuildRecordsV1()) {
+            initPortion(std::move(i));
+        }
 
         if (!rowset.Next()) {
             return TConclusionStatus::Fail("Not ready");
diff --git a/ydb/core/tx/columnshard/normalizer/portion/restore_v1_chunks.cpp b/ydb/core/tx/columnshard/normalizer/portion/restore_v1_chunks.cpp
index 400a70068508..b7f33ea7f7e4 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/restore_v1_chunks.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/restore_v1_chunks.cpp
@@ -212,6 +212,7 @@ TConclusion<std::vector<INormalizerTask::TPtr>> TNormalizer::DoInit(
     }
 
     AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV0Usage());
+    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage());
     {
         std::vector<TPatchItemRemoveV1> package;
         for (auto&& [portionId, chunkInfo] : columns1Remove) {
diff --git a/ydb/core/tx/columnshard/normalizer/portion/restore_v2_chunks.cpp b/ydb/core/tx/columnshard/normalizer/portion/restore_v2_chunks.cpp
index ffaeb5e4e5af..434dcceefba0 100644
--- a/ydb/core/tx/columnshard/normalizer/portion/restore_v2_chunks.cpp
+++ b/ydb/core/tx/columnshard/normalizer/portion/restore_v2_chunks.cpp
@@ -127,7 +127,6 @@ TConclusion<std::vector<INormalizerTask::TPtr>> TNormalizer::DoInit(
     if (!ready) {
         return TConclusionStatus::Fail("Not ready");
     }
-    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage());
     THashSet<TPortionAddress> readyPortions;
     THashMap<TPortionAddress, TV2BuildTask> buildPortions;
     {
@@ -168,6 +167,11 @@ TConclusion<std::vector<INormalizerTask::TPtr>> TNormalizer::DoInit(
     }
 
     std::vector<INormalizerTask::TPtr> tasks;
+    if (buildPortions.empty()) {
+        return tasks;
+    }
+    AFL_VERIFY(AppDataVerified().ColumnShardConfig.GetColumnChunksV1Usage());
+
     {
         std::vector<TV2BuildTask> package;
         for (auto&& [portionAddress, portionInfos] : buildPortions) {