diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbUtil.c b/source/dnode/vnode/src/tsdb/dev/tsdbUtil.c
index c61a43d3ea..0b681df6f7 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbUtil.c
@@ -13,4 +13,44 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "dev.h"
\ No newline at end of file
+#include "dev.h"
+
+int32_t tDelBlockCreate(SDelBlock *pDelBlock) {
+  memset(pDelBlock, 0, sizeof(SDelBlock));
+  for (int32_t i = 0; i < 5; ++i) {
+    tColDataInit(&pDelBlock->aColData[i], i + 1, TSDB_DATA_TYPE_BIGINT, 0);
+  }
+  return 0;
+}
+
+int32_t tDelBlockDestroy(SDelBlock *pDelBlock) {
+  for (int32_t i = 0; i < 5; ++i) {
+    tColDataDestroy(&pDelBlock->aColData[i]);
+  }
+  return 0;
+}
+
+int32_t tDelBlockClear(SDelBlock *pDelBlock) {
+  for (int32_t i = 0; i < 5; ++i) {
+    tColDataClear(&pDelBlock->aColData[i]);
+  }
+  return 0;
+}
+
+int32_t tDelBlockAppend(SDelBlock *pDelBlock, const TABLEID *tbid, const SDelData *pDelData) {
+  int32_t code = 0;
+  SColVal cv;
+
+  //   TODO
+  code = tColDataAppendValue(&pDelBlock->aColData[0], &cv);
+
+  code = tColDataAppendValue(&pDelBlock->aColData[1], &cv);
+
+  code = tColDataAppendValue(&pDelBlock->aColData[2], &cv);
+
+  code = tColDataAppendValue(&pDelBlock->aColData[3], &cv);
+
+  code = tColDataAppendValue(&pDelBlock->aColData[4], &cv);
+
+  return code;
+}
\ No newline at end of file
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbUtil.h b/source/dnode/vnode/src/tsdb/dev/tsdbUtil.h
index 35a85c1b06..029fe42769 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbUtil.h
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbUtil.h
@@ -16,6 +16,8 @@
 #ifndef _TSDB_UTIL_H
 #define _TSDB_UTIL_H
 
+#include "tsdb.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -32,7 +34,7 @@ int32_t tDelBlockAppend(SDelBlock *pDelBlock, const TABLEID *tbid, const SDelDat
 
 /* Exposed Structs */
 struct SDelBlock {
-  SColData aColData[4];  // <suid, uid, version, skey, ekey>
+  SColData aColData[5];  // <suid, uid, version, skey, ekey>
 };
 
 struct SDelBlk {