diff --git a/src/sql/engine/table/ob_table_scan_op.cpp b/src/sql/engine/table/ob_table_scan_op.cpp
index 88b7585723..fe7f2ba0f2 100644
--- a/src/sql/engine/table/ob_table_scan_op.cpp
+++ b/src/sql/engine/table/ob_table_scan_op.cpp
@@ -376,8 +376,7 @@ ObTableScanSpec::ObTableScanSpec(ObIAllocator &alloc, const ObPhyOperatorType ty
     tsc_ctdef_(alloc),
     pdml_partition_id_(NULL),
     agent_vt_meta_(alloc),
-    flags_(0),
-    is_spatial_ddl_(false)
+    flags_(0)
 {
 }
 
@@ -400,8 +399,7 @@ OB_SERIALIZE_MEMBER((ObTableScanSpec, ObOpSpec),
                     tsc_ctdef_,
                     pdml_partition_id_,
                     agent_vt_meta_,
-                    ddl_output_cids_,
-                    is_spatial_ddl_);
+                    ddl_output_cids_);
 
 DEF_TO_STRING(ObTableScanSpec)
 {
@@ -425,8 +423,7 @@ DEF_TO_STRING(ObTableScanSpec)
        K(tsc_ctdef_),
        K(report_col_checksum_),
        K_(agent_vt_meta),
-       K_(ddl_output_cids),
-       K_(is_spatial_ddl));
+       K_(ddl_output_cids));
   J_OBJ_END();
   return pos;
 }
diff --git a/src/sql/engine/table/ob_table_scan_op.h b/src/sql/engine/table/ob_table_scan_op.h
index 52ceb3fb60..6027d7a945 100644
--- a/src/sql/engine/table/ob_table_scan_op.h
+++ b/src/sql/engine/table/ob_table_scan_op.h
@@ -349,10 +349,10 @@ public:
       uint64_t batch_scan_flag_                 : 1;
       uint64_t report_col_checksum_             : 1;
       uint64_t has_tenant_id_col_               : 1;
-      uint64_t reserved_                        : 55;
+      uint64_t is_spatial_ddl_                  : 1;
+      uint64_t reserved_                        : 54;
     };
   };
-  bool is_spatial_ddl_;
 };
 
 class ObTableScanOp : public ObOperator