diff --git a/src/sql/das/iter/ob_das_iter_define.h b/src/sql/das/iter/ob_das_iter_define.h
index de65389a8c..f186a2897d 100644
--- a/src/sql/das/iter/ob_das_iter_define.h
+++ b/src/sql/das/iter/ob_das_iter_define.h
@@ -38,6 +38,7 @@ enum ObDASIterType : uint32_t
   DAS_ITER_FUNC_DATA,
   DAS_ITER_MVI_LOOKUP,
   DAS_ITER_HNSW_SCAN,
+  DAS_ITER_DOMAIN_ID_MERGE,
   // append DASIterType before me
   DAS_ITER_MAX
 };
diff --git a/src/sql/das/ob_das_define.h b/src/sql/das/ob_das_define.h
index 641303efb8..e8fa4ad3a3 100644
--- a/src/sql/das/ob_das_define.h
+++ b/src/sql/das/ob_das_define.h
@@ -91,6 +91,7 @@ enum ObDASOpType
   DAS_OP_DOC_ID_MERGE,
   DAS_OP_FUNC_LOOKUP,
   DAS_OP_INDEX_PROJ_LOOKUP,
+  DAS_OP_DOMAIN_ID_MERGE,
   //append OpType before me
   DAS_OP_MAX
 };