diff --git a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
index 9634b14bf7..8417b0d1b8 100644
--- a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
+++ b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
@@ -729,6 +729,21 @@ _err:
   return code;
 }
 
+int32_t tsdbReadDataBlock(SDataFReader *pReader, SBlock *pBlock, SBlockData *pBlockData, uint8_t **ppBuf1,
+                          uint8_t **ppBuf2) {
+  int32_t code = 0;
+  // TODO
+  return code;
+}
+
+int32_t tsdbReadLastBlock(SDataFReader *pReader, SBlockL *pBlockL, SBlockData *pBlockData, uint8_t **ppBuf1,
+                          uint8_t **ppBuf2) {
+  int32_t code = 0;
+  ASSERT(0);
+  // TODO
+  return code;
+}
+
 static int32_t tsdbReadBlockDataKey(SBlockData *pBlockData, SSubBlock *pSubBlock, uint8_t *pBuf, uint8_t **ppBuf) {
   int32_t code = 0;
   int64_t size = pSubBlock->szVersion + pSubBlock->szTSKEY + sizeof(TSCKSUM);
@@ -2098,6 +2113,20 @@ _err:
   return code;
 }
 
+int32_t tsdbWriteDataBlock(SDataFWriter *pWriter, SBlockData *pBlockData, SBlock *pBlock, uint8_t **ppBuf1,
+                           uint8_t **ppBuf2, int8_t cmprAlg) {
+  int32_t code = 0;
+  // TODO
+  return code;
+}
+
+int32_t tsdbWriteLastBlock(SDataFWriter *pWriter, SBlockData *pBlockData, SBlockL *pBlockL, uint8_t **ppBuf1,
+                           uint8_t **ppBuf2, int8_t cmprAlg) {
+  int32_t code = 0;
+  // TODO
+  return code;
+}
+
 int32_t tsdbDFileSetCopy(STsdb *pTsdb, SDFileSet *pSetFrom, SDFileSet *pSetTo) {
   int32_t   code = 0;
   int64_t   n;