diff --git a/source/dnode/vnode/CMakeLists.txt b/source/dnode/vnode/CMakeLists.txt
index dd51e2c911fceb9275b9ef20fc3c21a9caf062e4..b80adb9a954d1649f10693cb4ad7cf8a4ebecc17 100644
--- a/source/dnode/vnode/CMakeLists.txt
+++ b/source/dnode/vnode/CMakeLists.txt
@@ -41,7 +41,7 @@ target_sources(
     "src/tsdb/tsdbFS.c"
     "src/tsdb/tsdbOpen.c"
     "src/tsdb/tsdbMemTable.c"
-    # "src/tsdb/tsdbMemTable2.c"
+    "src/tsdb/tsdbMemTable2.c"
     "src/tsdb/tsdbRead.c"
     "src/tsdb/tsdbReadImpl.c"
     "src/tsdb/tsdbWrite.c"
diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 19c05bd9cb845991c9b716e03ca05d05093184de..81dcea9917c365a1eaa423381a2b17cb75756220 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -33,10 +33,14 @@ extern "C" {
 // clang-format on
 
 typedef struct TSDBKEY TSDBKEY;
+typedef struct SDelOp  SDelOp;
 
 // tsdbMemTable2.c ==============================================================================================
 typedef struct SMemTable SMemTable;
 
+int32_t tsdbMemTableCreate2(STsdb *pTsdb, SMemTable **ppMemTable);
+void    tsdbMemTableDestroy2(SMemTable *pMemTable);
+
 // tsdbMemTable ================
 typedef struct STsdbRow      STsdbRow;
 typedef struct STbData       STbData;
@@ -861,6 +865,13 @@ struct TSDBKEY {
   TSKEY   ts;
 };
 
+struct SDelOp {
+  int64_t version;
+  TSKEY   sKey;  // included
+  TSKEY   eKey;  // included
+  SDelOp *pNext;
+};
+
 #endif
 
 #ifdef __cplusplus
diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable2.c b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
index f8304be783cd8fba3b4cbb2fe9fa1c2a0ae03761..ef130d1af6b1a7090014025e5848ebb70d542990 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable2.c
@@ -21,12 +21,12 @@ typedef struct SMemData SMemData;
 // typedef struct SMemSkipListCurosr SMemSkipListCurosr;
 
 struct SMemData {
-  tb_uid_t  suid;
-  tb_uid_t  uid;
-  TSDBKEY   minKey;
-  TSDBKEY   maxKey;
-  int64_t   nRows;
-  SMemData *pHashNext;
+  tb_uid_t suid;
+  tb_uid_t uid;
+  TSDBKEY  minKey;
+  TSDBKEY  maxKey;
+  int64_t  nRows;
+  SDelOp  *pDelList;
 };
 
 struct SMemTable {
@@ -38,16 +38,39 @@ struct SMemTable {
   SArray *pArray;
 };
 
-int32_t tsdbMemTableCreate(STsdb *pTsdb, SMemTable **ppMemTable) {
-  int32_t code = 0;
-  // TODO
+// SMemTable ==============================================
+int32_t tsdbMemTableCreate2(STsdb *pTsdb, SMemTable **ppMemTable) {
+  int32_t    code = 0;
+  SMemTable *pMemTable = NULL;
+
+  pMemTable = (SMemTable *)taosMemoryCalloc(1, sizeof(*pMemTable));
+  if (pMemTable == NULL) {
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _err;
+  }
+  pMemTable->pTsdb = pTsdb;
+  pMemTable->nRef = 1;
+  pMemTable->minKey = (TSDBKEY){.version = -1, .ts = TSKEY_MAX};
+  pMemTable->maxKey = (TSDBKEY){.version = INT64_MAX, .ts = TSKEY_MIN};
+  pMemTable->nRows = 0;
+  pMemTable->pArray = taosArrayInit(512, sizeof(SMemData *));
+  if (pMemTable->pArray == NULL) {
+    taosMemoryFree(pMemTable);
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _err;
+  }
+
+  *ppMemTable = pMemTable;
+  return code;
+
+_err:
+  *ppMemTable = NULL;
   return code;
 }
 
-int32_t tsdbMemTableDestroy(SMemTable *pMemTable) {
-  int32_t code = 0;
+void tsdbMemTableDestroy2(SMemTable *pMemTable) {
+  ASSERT(0);
   // TODO
-  return code;
 }
 
 #if 0
@@ -106,49 +129,6 @@ static int32_t tsdbMemSkipListCursorMoveToPrev(SMemSkipListCurosr *pSlc);
 static SMemSkipListNode *tsdbMemSkipListNodeCreate(SVBufPool *pPool, SMemSkipList *pSl, const STsdbRow *pTRow);
 
 // SMemTable ========================
-int32_t tsdbMemTableCreate2(STsdb *pTsdb, SMemTable **ppMemTb) {
-  SMemTable *pMemTb = NULL;
-
-  pMemTb = taosMemoryCalloc(1, sizeof(*pMemTb));
-  if (pMemTb == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return -1;
-  }
-
-  pMemTb->pTsdb = pTsdb;
-  pMemTb->minKey = TSKEY_MAX;
-  pMemTb->maxKey = TSKEY_MIN;
-  pMemTb->minVer = -1;
-  pMemTb->maxVer = -1;
-  pMemTb->nRows = 0;
-  pMemTb->nHash = 0;
-  pMemTb->nBucket = 1024;
-  pMemTb->pBuckets = taosMemoryCalloc(pMemTb->nBucket, sizeof(*pMemTb->pBuckets));
-  if (pMemTb->pBuckets == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    taosMemoryFree(pMemTb);
-    return -1;
-  }
-  if (tsdbMemSkipListCursorCreate(pTsdb->pVnode->config.tsdbCfg.slLevel, &pMemTb->pSlc) < 0) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    taosMemoryFree(pMemTb->pBuckets);
-    taosMemoryFree(pMemTb);
-  }
-
-  *ppMemTb = pMemTb;
-  return 0;
-}
-
-int32_t tsdbMemTableDestroy2(STsdb *pTsdb, SMemTable *pMemTb) {
-  if (pMemTb) {
-    // loop to destroy the contents (todo)
-    tsdbMemSkipListCursorDestroy(pMemTb->pSlc);
-    taosMemoryFree(pMemTb->pBuckets);
-    taosMemoryFree(pMemTb);
-  }
-  return 0;
-}
-
 int32_t tsdbInsertData2(SMemTable *pMemTb, int64_t version, const SVSubmitBlk *pSubmitBlk) {
   SMemData  *pMemData;
   STsdb     *pTsdb = pMemTb->pTsdb;