diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 75c8eea83a003fbbcce095ebb6e4ace4d5b4a481..fa42248c695a522b21e71fac00bebe7f7a66bae0 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -841,48 +841,6 @@ typedef enum {
   READ_MODE_ALL,
 } EReadMode;
 
-typedef struct STsdbReaderInfo {
-  uint64_t      suid;
-  STSchema     *pSchema;
-  EReadMode     readMode;
-  uint64_t      rowsNum;
-  STimeWindow   window;
-  SVersionRange verRange;
-  int16_t       order;
-} STsdbReaderInfo;
-
-typedef struct {
-  SArray *pTombData;
-} STableLoadInfo;
-
-struct SDataFileReader;
-
-typedef struct SCacheRowsReader {
-  STsdb                  *pTsdb;
-  STsdbReaderInfo         info;
-  TdThreadMutex           readerMutex;
-  SVnode                 *pVnode;
-  STSchema               *pSchema;
-  STSchema               *pCurrSchema;
-  uint64_t                uid;
-  char                  **transferBuf;  // todo remove it soon
-  int32_t                 numOfCols;
-  SArray                 *pCidList;
-  int32_t                *pSlotIds;
-  int32_t                 type;
-  int32_t                 tableIndex;  // currently returned result tables
-  STableKeyInfo          *pTableList;  // table id list
-  int32_t                 numOfTables;
-  uint64_t               *uidList;
-  SSHashObj              *pTableMap;
-  SArray                 *pLDataIterArray;
-  struct SDataFileReader *pFileReader;
-  STFileSet              *pCurFileSet;
-  STsdbReadSnap          *pReadSnap;
-  char                   *idstr;
-  int64_t                 lastTs;
-} SCacheRowsReader;
-
 typedef struct {
   TSKEY   ts;
   int8_t  dirty;
@@ -892,14 +850,10 @@ typedef struct {
 int32_t tsdbOpenCache(STsdb *pTsdb);
 void    tsdbCloseCache(STsdb *pTsdb);
 int32_t tsdbCacheUpdate(STsdb *pTsdb, tb_uid_t suid, tb_uid_t uid, TSDBROW *row);
-int32_t tsdbCacheGetBatch(STsdb *pTsdb, tb_uid_t uid, SArray *pLastArray, SCacheRowsReader *pr, int8_t ltype);
-int32_t tsdbCacheGet(STsdb *pTsdb, tb_uid_t uid, SArray *pLastArray, SCacheRowsReader *pr, int8_t ltype);
 int32_t tsdbCacheDel(STsdb *pTsdb, tb_uid_t suid, tb_uid_t uid, TSKEY sKey, TSKEY eKey);
 
 int32_t tsdbCacheInsertLast(SLRUCache *pCache, tb_uid_t uid, TSDBROW *row, STsdb *pTsdb);
 int32_t tsdbCacheInsertLastrow(SLRUCache *pCache, STsdb *pTsdb, tb_uid_t uid, TSDBROW *row, bool dup);
-int32_t tsdbCacheGetLastH(SLRUCache *pCache, tb_uid_t uid, SCacheRowsReader *pr, LRUHandle **h);
-int32_t tsdbCacheGetLastrowH(SLRUCache *pCache, tb_uid_t uid, SCacheRowsReader *pr, LRUHandle **h);
 int32_t tsdbCacheRelease(SLRUCache *pCache, LRUHandle *h);
 
 int32_t tsdbCacheGetBlockIdx(SLRUCache *pCache, SDataFReader *pFileReader, LRUHandle **handle);
@@ -909,8 +863,6 @@ int32_t tsdbCacheDeleteLastrow(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
 int32_t tsdbCacheDeleteLast(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
 int32_t tsdbCacheDelete(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
 
-// int32_t tsdbCacheLastArray2Row(SArray *pLastArray, STSRow **ppRow, STSchema *pSchema);
-
 // ========== inline functions ==========
 static FORCE_INLINE int32_t tsdbKeyCmprFn(const void *p1, const void *p2) {
   TSDBKEY *pKey1 = (TSDBKEY *)p1;
diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index 65a9971d1ac68b7b657b581256f5a5513dda5df0..2cb5f89cb40b9fa42f6c8b7a339e9a3cf0cad0fc 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -1922,6 +1922,11 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
         state->pr->pCurFileSet = state->pFileSet;
 
         loadDataTomb(state->pr, state->pr->pFileReader);
+
+        int32_t code = tsdbDataFileReadBrinBlk(state->pr->pFileReader, &state->pr->pBlkArray);
+        if (code != TSDB_CODE_SUCCESS) {
+          goto _err;
+        }
       }
 
       if (!state->pIndexList) {
@@ -1929,12 +1934,8 @@ static int32_t getNextRowFromFS(void *iter, TSDBROW **ppRow, bool *pIgnoreEarlie
       } else {
         taosArrayClear(state->pIndexList);
       }
-      const TBrinBlkArray *pBlkArray = NULL;
 
-      int32_t code = tsdbDataFileReadBrinBlk(state->pr->pFileReader, &pBlkArray);
-      if (code != TSDB_CODE_SUCCESS) {
-        goto _err;
-      }
+      const TBrinBlkArray *pBlkArray = state->pr->pBlkArray;
 
       for (int i = TARRAY2_SIZE(pBlkArray) - 1; i >= 0; --i) {
         SBrinBlk *pBrinBlk = &pBlkArray->data[i];
diff --git a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
index d51305f446c654257e15e85876d76fffc192323f..b24823b4360a447ee5eb4354822771619ec41b32 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCacheRead.c
@@ -18,6 +18,7 @@
 #include "tcommon.h"
 #include "tsdb.h"
 #include "tsdbDataFileRW.h"
+#include "tsdbReadUtil.h"
 
 #define HASTYPE(_type, _t) (((_type) & (_t)) == (_t))
 
diff --git a/source/dnode/vnode/src/tsdb/tsdbReadUtil.h b/source/dnode/vnode/src/tsdb/tsdbReadUtil.h
index 3bb7b8f3a573984ca81713bcd1fc48e2cad25d60..e7a1d6b038bb3c3f6fb629aed9507d2a87123160 100644
--- a/source/dnode/vnode/src/tsdb/tsdbReadUtil.h
+++ b/source/dnode/vnode/src/tsdb/tsdbReadUtil.h
@@ -36,6 +36,16 @@ typedef enum {
   EXTERNAL_ROWS_NEXT = 0x3,
 } EContentData;
 
+typedef struct STsdbReaderInfo {
+  uint64_t      suid;
+  STSchema*     pSchema;
+  EReadMode     readMode;
+  uint64_t      rowsNum;
+  STimeWindow   window;
+  SVersionRange verRange;
+  int16_t       order;
+} STsdbReaderInfo;
+
 typedef struct SBlockInfoBuf {
   int32_t currentIndex;
   SArray* pData;
@@ -243,6 +253,41 @@ void    loadMemTombData(SArray** ppMemDelData, STbData* pMemTbData, STbData* piM
 int32_t loadDataFileTombDataForAll(STsdbReader* pReader);
 int32_t loadSttTombDataForAll(STsdbReader* pReader, SSttFileReader* pSttFileReader, SSttBlockLoadInfo* pLoadInfo);
 
+typedef struct {
+  SArray* pTombData;
+} STableLoadInfo;
+
+struct SDataFileReader;
+
+typedef struct SCacheRowsReader {
+  STsdb*                  pTsdb;
+  STsdbReaderInfo         info;
+  TdThreadMutex           readerMutex;
+  SVnode*                 pVnode;
+  STSchema*               pSchema;
+  STSchema*               pCurrSchema;
+  uint64_t                uid;
+  char**                  transferBuf;  // todo remove it soon
+  int32_t                 numOfCols;
+  SArray*                 pCidList;
+  int32_t*                pSlotIds;
+  int32_t                 type;
+  int32_t                 tableIndex;  // currently returned result tables
+  STableKeyInfo*          pTableList;  // table id list
+  int32_t                 numOfTables;
+  uint64_t*               uidList;
+  SSHashObj*              pTableMap;
+  SArray*                 pLDataIterArray;
+  struct SDataFileReader* pFileReader;
+  STFileSet*              pCurFileSet;
+  const TBrinBlkArray*    pBlkArray;
+  STsdbReadSnap*          pReadSnap;
+  char*                   idstr;
+  int64_t                 lastTs;
+} SCacheRowsReader;
+
+int32_t tsdbCacheGetBatch(STsdb* pTsdb, tb_uid_t uid, SArray* pLastArray, SCacheRowsReader* pr, int8_t ltype);
+
 #ifdef __cplusplus
 }
 #endif