diff --git a/tx_service/include/cc/cc_request.h b/tx_service/include/cc/cc_request.h
index 6b266621..50c78175 100644
--- a/tx_service/include/cc/cc_request.h
+++ b/tx_service/include/cc/cc_request.h
@@ -4342,6 +4342,8 @@ struct RangePartitionDataSyncScanCc : public CcRequestBase
 
     bool IsSlicePinned(uint16_t core_id) const
     {
+        assert(export_base_table_item_ ||
+               curr_slice_index_[core_id] < slices_to_scan_.size());
         return export_base_table_item_
                    ? true
                    : slices_to_scan_[curr_slice_index_[core_id]].second;
diff --git a/tx_service/include/cc/template_cc_map.h b/tx_service/include/cc/template_cc_map.h
index d32c8e32..6af998f4 100644
--- a/tx_service/include/cc/template_cc_map.h
+++ b/tx_service/include/cc/template_cc_map.h
@@ -5610,7 +5610,11 @@ class TemplateCcMap : public CcMap
             recycle_ts = shard_->GlobalMinSiTxStartTs();
         }
 
-        bool slice_pinned = req.IsSlicePinned(shard_->core_id_);
+        // If reach to the batch end, it means there are no slices that need to
+        // be scanned.
+        bool slice_pinned = req.TheBatchEnd(shard_->core_id_)
+                                ? false
+                                : req.IsSlicePinned(shard_->core_id_);
         // The following flag is used to mark the behavior of one slice.
         // Only need to export the key if the key is already persisted, this
         // will happen when the slice need to split, and should export all the
@@ -5718,7 +5722,11 @@ class TemplateCcMap : public CcMap
                     std::tie(key_it, slice_end_it, slice_end_key) =
                         find_non_empty_slice(*search_start_key);
 
-                    slice_pinned = req.IsSlicePinned(shard_->core_id_);
+                    // If reach to the batch end, it means there are no slices
+                    // that need to be scanned.
+                    slice_pinned = req.TheBatchEnd(shard_->core_id_)
+                                       ? false
+                                       : req.IsSlicePinned(shard_->core_id_);
                     export_persisted_key_only =
                         !req.export_base_table_item_ && slice_pinned;
                 }