diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index 7a88fee3d38c634d3fb311c0fb71b9d275ced514..e4fe97073a3c7007413b55822bfb99f901c02043 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -48,7 +48,6 @@ typedef struct {
 } SBtreeZeroPageArg;
 
 static int tdbBtCursorMoveTo(SBtCursor *pCur, const void *pKey, int kLen, int *pCRst);
-static int tdbEncodeLength(u8 *pBuf, uint32_t len);
 static int tdbCompareKeyAndCell(const void *pKey, int kLen, const void *pCell);
 static int tdbDefaultKeyCmprFn(const void *pKey1, int keyLen1, const void *pKey2, int keyLen2);
 static int tdbBtreeOpenImpl(SBTree *pBt);
@@ -233,19 +232,6 @@ static int tdbBtCursorMoveTo(SBtCursor *pCur, const void *pKey, int kLen, int *p
   return 0;
 }
 
-static int tdbEncodeLength(u8 *pBuf, uint32_t len) {
-  int iCount = 0;
-
-  while (len > 127) {
-    pBuf[iCount++] = (u8)((len & 0xff) | 128);
-    len >>= 7;
-  }
-
-  pBuf[iCount++] = (u8)len;
-
-  return iCount;
-}
-
 static int tdbBtCursorMoveToRoot(SBtCursor *pCur) {
   SBTree *pBt;
   SPager *pPager;