diff --git a/be/src/olap/rowset/segment_v2/hierarchical_data_reader.cpp b/be/src/olap/rowset/segment_v2/hierarchical_data_reader.cpp
index ca25b230bceec3e..a0e8b3fd0eecd84 100644
--- a/be/src/olap/rowset/segment_v2/hierarchical_data_reader.cpp
+++ b/be/src/olap/rowset/segment_v2/hierarchical_data_reader.cpp
@@ -24,6 +24,7 @@
 #include "olap/rowset/segment_v2/column_reader.h"
 #include "vec/columns/column.h"
 #include "vec/columns/column_map.h"
+#include "vec/columns/column_nullable.h"
 #include "vec/columns/column_object.h"
 #include "vec/common/assert_cast.h"
 #include "vec/common/schema_util.h"
@@ -82,6 +83,10 @@ Status HierarchicalDataReader::init(const ColumnIteratorOptions& opts) {
         RETURN_IF_ERROR(_root_reader->iterator->init(opts));
         _root_reader->inited = true;
     }
+    if (_sparse_column_reader && !_sparse_column_reader->inited) {
+        RETURN_IF_ERROR(_sparse_column_reader->iterator->init(opts));
+        _sparse_column_reader->inited = true;
+    }
     return Status::OK();
 }
 
@@ -402,15 +407,23 @@ Status SparseColumnExtractReader::seek_to_ordinal(ordinal_t ord) {
 }
 
 void SparseColumnExtractReader::_fill_path_column(vectorized::MutableColumnPtr& dst) {
+    vectorized::ColumnNullable* nullable_column = nullptr;
+    if (dst->is_nullable()) {
+        nullable_column = assert_cast<vectorized::ColumnNullable*>(dst.get());
+    }
     vectorized::ColumnObject& var =
-            dst->is_nullable()
-                    ? assert_cast<vectorized::ColumnObject&>(
-                              assert_cast<vectorized::ColumnNullable&>(*dst).get_nested_column())
+            nullable_column != nullptr
+                    ? assert_cast<vectorized::ColumnObject&>(nullable_column->get_nested_column())
                     : assert_cast<vectorized::ColumnObject&>(*dst);
-    DCHECK(!var.is_null_root());
-    vectorized::ColumnObject::fill_path_olumn_from_sparse_data(
-            *var.get_subcolumn({}) /*root*/, StringRef {_path.data(), _path.size()},
+    if (var.is_null_root()) {
+        var.add_sub_column({}, dst->size());
+    }
+    vectorized::NullMap* null_map =
+            nullable_column ? &nullable_column->get_null_map_data() : nullptr;
+    vectorized::ColumnObject::fill_path_column_from_sparse_data(
+            *var.get_subcolumn({}) /*root*/, null_map, StringRef {_path.data(), _path.size()},
             _sparse_column->get_ptr(), 0, _sparse_column->size());
+    var.incr_num_rows(_sparse_column->size());
     _sparse_column->clear();
 }
 
diff --git a/be/src/vec/columns/column_object.cpp b/be/src/vec/columns/column_object.cpp
index 2b64f7f392f250b..862ca880df2af10 100644
--- a/be/src/vec/columns/column_object.cpp
+++ b/be/src/vec/columns/column_object.cpp
@@ -2041,6 +2041,7 @@ Status ColumnObject::finalize(FinalizeMode mode) {
         new_subcolumns.get_mutable_root()->data.finalize(mode);
     } else if (mode == FinalizeMode::WRITE_MODE) {
         new_subcolumns.create_root(Subcolumn(num_rows, is_nullable, true));
+        new_subcolumns.get_mutable_root()->data.finalize(mode);
     }
 
     const bool need_pick_subcolumn_to_sparse_column =
@@ -2493,7 +2494,8 @@ size_t ColumnObject::find_path_lower_bound_in_sparse_data(StringRef path,
     return it.index;
 }
 
-void ColumnObject::fill_path_olumn_from_sparse_data(Subcolumn& subcolumn, StringRef path,
+void ColumnObject::fill_path_column_from_sparse_data(Subcolumn& subcolumn, NullMap* null_map,
+                                                    StringRef path,
                                                     const ColumnPtr& sparse_data_column,
                                                     size_t start, size_t end) {
     const auto& sparse_data_map = assert_cast<const ColumnMap&>(*sparse_data_column);
@@ -2502,6 +2504,9 @@ void ColumnObject::fill_path_olumn_from_sparse_data(Subcolumn& subcolumn, String
     size_t last_offset = sparse_data_offsets[static_cast<ssize_t>(end) - 1];
     // Check if we have at least one row with data.
     if (first_offset == last_offset) {
+        if (null_map) {
+            null_map->resize_fill(end - start, 1);
+        }
         subcolumn.insert_many_defaults(end - start);
         return;
     }
@@ -2513,6 +2518,7 @@ void ColumnObject::fill_path_olumn_from_sparse_data(Subcolumn& subcolumn, String
         size_t paths_end = sparse_data_offsets[static_cast<ssize_t>(i)];
         auto lower_bound_path_index = ColumnObject::find_path_lower_bound_in_sparse_data(
                 path, sparse_data_paths, paths_start, paths_end);
+        bool is_null = false;
         if (lower_bound_path_index != paths_end &&
             sparse_data_paths.get_data_at(lower_bound_path_index) == path) {
             // auto value_data = sparse_data_values.get_data_at(lower_bound_path_index);
@@ -2521,8 +2527,13 @@ void ColumnObject::fill_path_olumn_from_sparse_data(Subcolumn& subcolumn, String
             const auto& data = ColumnObject::deserialize_from_sparse_column(&sparse_data_values,
                                                                             lower_bound_path_index);
             subcolumn.insert(data.first, data.second);
+            is_null = false;
         } else {
             subcolumn.insert_default();
+            is_null = true;
+        }
+        if (null_map) {
+            null_map->push_back(is_null);
         }
     }
 }
diff --git a/be/src/vec/columns/column_object.h b/be/src/vec/columns/column_object.h
index f8ba93ef8247476..210fd9a68a51597 100644
--- a/be/src/vec/columns/column_object.h
+++ b/be/src/vec/columns/column_object.h
@@ -39,6 +39,7 @@
 #include "util/jsonb_document.h"
 #include "vec/columns/column.h"
 #include "vec/columns/column_map.h"
+#include "vec/columns/column_nullable.h"
 #include "vec/columns/subcolumn_tree.h"
 #include "vec/common/cow.h"
 #include "vec/common/string_ref.h"
@@ -586,7 +587,8 @@ class ColumnObject final : public COWHelper<IColumn, ColumnObject> {
         return {&key, &value};
     }
     // Insert all the data from sparse data with specified path to sub column.
-    static void fill_path_olumn_from_sparse_data(Subcolumn& subcolumn, StringRef path,
+    static void fill_path_column_from_sparse_data(Subcolumn& subcolumn, NullMap* null_map,
+                                                 StringRef path,
                                                  const ColumnPtr& sparse_data_column, size_t start,
                                                  size_t end);