diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
index 173de4c578..edb0a91900 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
@@ -58,12 +58,6 @@ int32_t tsdbDataFileReadBlockSma(SDataFileReader *reader, const SBrinRecord *rec
 int32_t tsdbDataFileReadTombBlk(SDataFileReader *reader, const TTombBlkArray **tombBlkArray);
 int32_t tsdbDataFileReadTombBlock(SDataFileReader *reader, const STombBlk *tombBlk, STombBlock *tData);
 
-#if 0
-int32_t tsdbDataFileReadBlockIdx(SDataFileReader *reader, const TBlockIdxArray **blockIdxArray);
-int32_t tsdbDataFileReadDataBlk(SDataFileReader *reader, const SBlockIdx *blockIdx, const TDataBlkArray **dataBlkArray);
-int32_t tsdbDataFileReadDataBlock(SDataFileReader *reader, const SDataBlk *dataBlk, SBlockData *bData);
-#endif
-
 // SDataFileWriter =============================================
 typedef struct SDataFileWriter SDataFileWriter;
 typedef struct SDataFileWriterConfig {
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c b/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
index fef3d002d7..bf2d06de8b 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
@@ -412,104 +412,6 @@ _exit:
   return code;
 }
 
-#if 0
-int32_t tsdbDataFileReadBlockIdx(SDataFileReader *reader, const TBlockIdxArray **blockIdxArray) {
-  int32_t code = 0;
-  int32_t lino = 0;
-
-  if (!reader->ctx->blockIdxLoaded) {
-    code = tsdbDataFileReadHeadFooter(reader);
-    TSDB_CHECK_CODE(code, lino, _exit);
-
-    TARRAY2_CLEAR(reader->blockIdxArray, NULL);
-    if (reader->fd[TSDB_FTYPE_HEAD]  //
-        && reader->headFooter->blockIdxPtr->size) {
-      code = tRealloc(&reader->config->bufArr[0], reader->headFooter->blockIdxPtr->size);
-      TSDB_CHECK_CODE(code, lino, _exit);
-
-      code = tsdbReadFile(reader->fd[TSDB_FTYPE_HEAD], reader->headFooter->blockIdxPtr->offset,
-                          reader->config->bufArr[0], reader->headFooter->blockIdxPtr->size);
-      TSDB_CHECK_CODE(code, lino, _exit);
-
-      int32_t size = reader->headFooter->blockIdxPtr->size / sizeof(SBlockIdx);
-      for (int32_t i = 0; i < size; ++i) {
-        code = TARRAY2_APPEND_PTR(reader->blockIdxArray, ((SBlockIdx *)reader->config->bufArr[0]) + i);
-        TSDB_CHECK_CODE(code, lino, _exit);
-      }
-    }
-
-    reader->ctx->blockIdxLoaded = true;
-  }
-
-  blockIdxArray[0] = reader->blockIdxArray;
-
-_exit:
-  if (code) {
-    TSDB_ERROR_LOG(TD_VID(reader->config->tsdb->pVnode), lino, code);
-  }
-  return code;
-}
-
-int32_t tsdbDataFileReadDataBlk(SDataFileReader *reader, const SBlockIdx *blockIdx,
-                                const TDataBlkArray **dataBlkArray) {
-  ASSERT(reader->ctx->headFooterLoaded);
-
-  if (reader->ctx->tbid->suid == blockIdx->suid && reader->ctx->tbid->uid == blockIdx->uid) {
-    dataBlkArray[0] = reader->dataBlkArray;
-    return 0;
-  }
-
-  int32_t code = 0;
-  int32_t lino = 0;
-
-  reader->ctx->tbid->suid = blockIdx->suid;
-  reader->ctx->tbid->uid = blockIdx->uid;
-
-  TARRAY2_CLEAR(reader->dataBlkArray, NULL);
-
-  code = tRealloc(&reader->config->bufArr[0], blockIdx->size);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
-  code = tsdbReadFile(reader->fd[TSDB_FTYPE_HEAD], blockIdx->offset, reader->config->bufArr[0], blockIdx->size);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
-  int32_t size = blockIdx->size / sizeof(SDataBlk);
-  for (int32_t i = 0; i < size; ++i) {
-    code = TARRAY2_APPEND_PTR(reader->dataBlkArray, ((SDataBlk *)reader->config->bufArr[0]) + i);
-    TSDB_CHECK_CODE(code, lino, _exit);
-  }
-
-  dataBlkArray[0] = reader->dataBlkArray;
-
-_exit:
-  if (code) {
-    TSDB_ERROR_LOG(TD_VID(reader->config->tsdb->pVnode), lino, code);
-  }
-  return code;
-}
-
-int32_t tsdbDataFileReadDataBlock(SDataFileReader *reader, const SDataBlk *dataBlk, SBlockData *bData) {
-  int32_t code = 0;
-  int32_t lino = 0;
-
-  code = tRealloc(&reader->config->bufArr[0], dataBlk->aSubBlock->szBlock);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
-  code = tsdbReadFile(reader->fd[TSDB_FTYPE_DATA], dataBlk->aSubBlock->offset, reader->config->bufArr[0],
-                      dataBlk->aSubBlock->szBlock);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
-  code = tDecmprBlockData(reader->config->bufArr[0], dataBlk->aSubBlock->szBlock, bData, &reader->config->bufArr[1]);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
-_exit:
-  if (code) {
-    TSDB_ERROR_LOG(TD_VID(reader->config->tsdb->pVnode), lino, code);
-  }
-  return code;
-}
-#endif
-
 int32_t tsdbDataFileReadTombBlk(SDataFileReader *reader, const TTombBlkArray **tombBlkArray) {
   int32_t code = 0;
   int32_t lino = 0;