diff --git a/be/src/olap/memtable.cpp b/be/src/olap/memtable.cpp
index 381eeb3340a14c..b3f3343a9c5b12 100644
--- a/be/src/olap/memtable.cpp
+++ b/be/src/olap/memtable.cpp
@@ -48,7 +48,7 @@ bvar::Adder<int64_t> g_memtable_input_block_allocated_size("memtable_input_block
 
 using namespace ErrorCode;
 
-MemTable::MemTable(int64_t tablet_id, const TabletSchema* tablet_schema,
+MemTable::MemTable(int64_t tablet_id, std::shared_ptr<TabletSchema> tablet_schema,
                    const std::vector<SlotDescriptor*>* slot_descs, TupleDescriptor* tuple_desc,
                    bool enable_unique_key_mow, PartialUpdateInfo* partial_update_info,
                    const std::shared_ptr<MemTracker>& insert_mem_tracker,
diff --git a/be/src/olap/memtable.h b/be/src/olap/memtable.h
index d2dfafd972a20d..916067ba1193d2 100644
--- a/be/src/olap/memtable.h
+++ b/be/src/olap/memtable.h
@@ -129,7 +129,8 @@ class Tie {
 
 class RowInBlockComparator {
 public:
-    RowInBlockComparator(const TabletSchema* tablet_schema) : _tablet_schema(tablet_schema) {}
+    RowInBlockComparator(std::shared_ptr<TabletSchema> tablet_schema)
+            : _tablet_schema(tablet_schema) {}
     // call set_block before operator().
     // only first time insert block to create _input_mutable_block,
     // so can not Comparator of construct to set pblock
@@ -137,7 +138,7 @@ class RowInBlockComparator {
     int operator()(const RowInBlock* left, const RowInBlock* right) const;
 
 private:
-    const TabletSchema* _tablet_schema = nullptr;
+    std::shared_ptr<TabletSchema> _tablet_schema;
     vectorized::MutableBlock* _pblock = nullptr; //  corresponds to Memtable::_input_mutable_block
 };
 
@@ -168,7 +169,7 @@ class MemTableStat {
 
 class MemTable {
 public:
-    MemTable(int64_t tablet_id, const TabletSchema* tablet_schema,
+    MemTable(int64_t tablet_id, std::shared_ptr<TabletSchema> tablet_schema,
              const std::vector<SlotDescriptor*>* slot_descs, TupleDescriptor* tuple_desc,
              bool enable_unique_key_mow, PartialUpdateInfo* partial_update_info,
              const std::shared_ptr<MemTracker>& insert_mem_tracker,
@@ -209,7 +210,7 @@ class MemTable {
     bool _enable_unique_key_mow = false;
     bool _is_partial_update = false;
     const KeysType _keys_type;
-    const TabletSchema* _tablet_schema = nullptr;
+    std::shared_ptr<TabletSchema> _tablet_schema;
 
     std::shared_ptr<RowInBlockComparator> _vec_row_comparator;
 
diff --git a/be/src/olap/memtable_writer.cpp b/be/src/olap/memtable_writer.cpp
index da6af4ffb803b3..93499a51cb8f89 100644
--- a/be/src/olap/memtable_writer.cpp
+++ b/be/src/olap/memtable_writer.cpp
@@ -207,8 +207,8 @@ void MemTableWriter::_reset_mem_table() {
     }
     {
         std::lock_guard<SpinLock> l(_mem_table_ptr_lock);
-        _mem_table.reset(new MemTable(_req.tablet_id, _tablet_schema.get(), _req.slots,
-                                      _req.tuple_desc, _unique_key_mow, _partial_update_info.get(),
+        _mem_table.reset(new MemTable(_req.tablet_id, _tablet_schema, _req.slots, _req.tuple_desc,
+                                      _unique_key_mow, _partial_update_info.get(),
                                       mem_table_insert_tracker, mem_table_flush_tracker));
     }
 
diff --git a/be/src/olap/tablet.cpp b/be/src/olap/tablet.cpp
index aa7594f1e10a47..fc72bd568644fb 100644
--- a/be/src/olap/tablet.cpp
+++ b/be/src/olap/tablet.cpp
@@ -2902,7 +2902,7 @@ Status Tablet::sort_block(vectorized::Block& in_block, vectorized::Block& output
             vectorized::MutableBlock::build_mutable_block(&output_block);
 
     std::shared_ptr<RowInBlockComparator> vec_row_comparator =
-            std::make_shared<RowInBlockComparator>(_tablet_meta->tablet_schema().get());
+            std::make_shared<RowInBlockComparator>(_tablet_meta->tablet_schema());
     vec_row_comparator->set_block(&mutable_input_block);
 
     std::vector<std::unique_ptr<RowInBlock>> row_in_blocks;