diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 6132a47ac3..fe9d320f6f 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -295,7 +295,7 @@ static int32_t mergeLastRowFileSet(STbDataIter *iter, STbDataIter *iiter, SDFile
       } else if (pIMemRow != NULL) {
       } else {
         if (!tsdbKeyDeleted(key, pSkyline)) {
-          *ppLastRow = buildTsrowFromTsdbrow(&row);
+          code = buildTsrowFromTsdbrow(&row, ppLastRow);
           goto _done;
         } else {
           continue;
@@ -475,15 +475,34 @@ _err:
   return code;
 }
 
-static STSRow *tsRowFromTsdbRow(TSDBROW *pRow) {
-  // TODO: new tsrow from tsdbrow
-  STSRow *ret = NULL;
+static int32_t tsRowFromTsdbRow(STSchema *pTSchema, TSDBROW *pRow, STSRow **ppRow) {
+  int32_t code = 0;
+
+  SColVal *pColVal = &(SColVal){0};
+
   if (pRow->type == 0) {
-    return tdRowDup(pRow->pTSRow);
+    *ppRow = tdRowDup(pRow->pTSRow);
   } else {
+    SArray *pArray = taosArrayInit(pTSchema->numOfCols, sizeof(SColVal));
+    if (pArray == NULL) {
+      code = TSDB_CODE_OUT_OF_MEMORY;
+      goto _exit;
+    }
+
+    for (int16_t iCol = 1; iCol < pTSchema->numOfCols; iCol++) {
+      tsdbRowGetColVal(pRow, pTSchema, iCol, pColVal);
+      if (taosArrayPush(pArray, pColVal) == NULL) {
+        code = TSDB_CODE_OUT_OF_MEMORY;
+        goto _exit;
+      }
+    }
+
+    code = tdSTSRowNew(pArray, pTSchema, ppRow);
+    if (code) goto _exit;
   }
 
-  return ret;
+_exit:
+  return code;
 }
 
 static bool tsdbKeyDeleted(TSDBKEY *key, SArray *pSkyline, int *iSkyline) {
@@ -584,6 +603,8 @@ static int32_t mergeLastRow(tb_uid_t uid, STsdb *pTsdb, STSRow **ppRow) {
     input[1].next = true;
   }
 
+  STSchema *pTSchema = metaGetTbTSchema(pTsdb->pVnode->pMeta, uid, -1);
+
   do {
     for (int i = 0; i < 3; ++i) {
       if (input[i].next && !input[i].stop) {
@@ -640,13 +661,12 @@ static int32_t mergeLastRow(tb_uid_t uid, STsdb *pTsdb, STSRow **ppRow) {
     // merge if nMerge > 1
     if (nMerge > 0) {
       if (nMerge == 1) {
-        *ppRow = tsRowFromTsdbRow(merge[nMerge]);
+        code = tsRowFromTsdbRow(pTSchema, merge[nMerge - 1], ppRow);
+        if (code) goto _err;
       } else {
         // merge 2 or 3 rows
         SRowMerger merger = {0};
 
-        STSchema *pTSchema = metaGetTbTSchema(pTsdb->pVnode->pMeta, uid, -1);
-
         tRowMergerInit(&merger, merge[0], pTSchema);
         for (int i = 1; i < nMerge; ++i) {
           tRowMerge(&merger, merge[i]);
@@ -657,9 +677,11 @@ static int32_t mergeLastRow(tb_uid_t uid, STsdb *pTsdb, STSRow **ppRow) {
     }
   } while (*ppRow == NULL);
 
-  return code;
+  taosMemoryFreeClear(pTSchema);
 
+  return code;
 _err:
+  taosMemoryFreeClear(pTSchema);
   tsdbError("vgId:%d merge last_row failed since %s", TD_VID(pTsdb->pVnode), tstrerror(code));
   return code;
 }
diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index e90338538d..c529a04280 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -749,8 +749,9 @@ _exit:
 
 int32_t tRowMergerGetRow(SRowMerger *pMerger, STSRow **ppRow) {
   int32_t code = 0;
-  // TODO
-  ASSERT(0);
+
+  code = tdSTSRowNew(pMerger->pArray, pMerger->pTSchema, ppRow);
+
   return code;
 }
 
@@ -1278,4 +1279,4 @@ int32_t tBlockDataCopy(SBlockData *pBlockDataSrc, SBlockData *pBlockDataDest) {
 
 _exit:
   return code;
-}
\ No newline at end of file
+}