[PLACEHOLDER] id define for domain merge iter

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
 };

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
 };