diff --git a/include/util/tbuffer.h b/include/util/tbuffer.h
index e2b9f192a7a09cfa9d1d63cf4c84a3e8d311d5f7..6bb7f67e3d52549bac2a381bc4d65ad1b6263bf5 100644
--- a/include/util/tbuffer.h
+++ b/include/util/tbuffer.h
@@ -93,58 +93,26 @@ typedef struct SBufferWriter {
 #define tbufTell(buf) ((buf)->pos)
 
 ////////////////////////////////////////////////////////////////////////////////
-// reader functions & macros
-
-// *Endian*, if true, reader functions of primitive types will do 'ntoh' automatically
-#define tbufInitReader(Data, Size, Endian) \
-  { .endian = (Endian), .data = (Data), .pos = 0, .size = ((Data) == NULL ? 0 : (Size)) }
-
-size_t tbufSkip(SBufferReader* buf, size_t size);
-
-const char* tbufRead(SBufferReader* buf, size_t size);
-void        tbufReadToBuffer(SBufferReader* buf, void* dst, size_t size);
-const char* tbufReadString(SBufferReader* buf, size_t* len);
-size_t      tbufReadToString(SBufferReader* buf, char* dst, size_t size);
-const char* tbufReadBinary(SBufferReader* buf, size_t* len);
-size_t      tbufReadToBinary(SBufferReader* buf, void* dst, size_t size);
-
-bool     tbufReadBool(SBufferReader* buf);
-char     tbufReadChar(SBufferReader* buf);
-int8_t   tbufReadInt8(SBufferReader* buf);
-uint8_t  tbufReadUint8(SBufferReader* buf);
-int16_t  tbufReadInt16(SBufferReader* buf);
-uint16_t tbufReadUint16(SBufferReader* buf);
-int32_t  tbufReadInt32(SBufferReader* buf);
-uint32_t tbufReadUint32(SBufferReader* buf);
-int64_t  tbufReadInt64(SBufferReader* buf);
-uint64_t tbufReadUint64(SBufferReader* buf);
-float    tbufReadFloat(SBufferReader* buf);
-double   tbufReadDouble(SBufferReader* buf);
-
-////////////////////////////////////////////////////////////////////////////////
-// writer functions & macros
-
+/* ------------------------ BUFFER WRITER FUNCTIONS AND MACROS ------------------------ */
 // *Allocator*, function to allocate memory, will use 'realloc' if NULL
 // *Endian*, if true, writer functions of primitive types will do 'hton' automatically
 #define tbufInitWriter(Allocator, Endian) \
   { .endian = (Endian), .data = NULL, .pos = 0, .size = 0, .allocator = ((Allocator) == NULL ? realloc : (Allocator)) }
-void tbufCloseWriter(SBufferWriter* buf);
 
+void   tbufCloseWriter(SBufferWriter* buf);
 void   tbufEnsureCapacity(SBufferWriter* buf, size_t size);
 size_t tbufReserve(SBufferWriter* buf, size_t size);
 char*  tbufGetData(SBufferWriter* buf, bool takeOver);
-
-void tbufWrite(SBufferWriter* buf, const void* data, size_t size);
-void tbufWriteAt(SBufferWriter* buf, size_t pos, const void* data, size_t size);
-void tbufWriteStringLen(SBufferWriter* buf, const char* str, size_t len);
-void tbufWriteString(SBufferWriter* buf, const char* str);
+void   tbufWrite(SBufferWriter* buf, const void* data, size_t size);
+void   tbufWriteAt(SBufferWriter* buf, size_t pos, const void* data, size_t size);
+void   tbufWriteStringLen(SBufferWriter* buf, const char* str, size_t len);
+void   tbufWriteString(SBufferWriter* buf, const char* str);
 // the prototype of tbufWriteBinary and tbufWrite are identical
 // the difference is: tbufWriteBinary writes the length of the data to the buffer
 // first, then the actual data, which means the reader don't need to know data
 // size before read. Write only write the data itself, which means the reader
 // need to know data size before read.
 void tbufWriteBinary(SBufferWriter* buf, const void* data, size_t len);
-
 void tbufWriteBool(SBufferWriter* buf, bool data);
 void tbufWriteBoolAt(SBufferWriter* buf, size_t pos, bool data);
 void tbufWriteChar(SBufferWriter* buf, char data);
@@ -170,6 +138,31 @@ void tbufWriteFloatAt(SBufferWriter* buf, size_t pos, float data);
 void tbufWriteDouble(SBufferWriter* buf, double data);
 void tbufWriteDoubleAt(SBufferWriter* buf, size_t pos, double data);
 
+/* ------------------------ BUFFER READER FUNCTIONS AND MACROS ------------------------ */
+// *Endian*, if true, reader functions of primitive types will do 'ntoh' automatically
+#define tbufInitReader(Data, Size, Endian) \
+  { .endian = (Endian), .data = (Data), .pos = 0, .size = ((Data) == NULL ? 0 : (Size)) }
+
+size_t      tbufSkip(SBufferReader* buf, size_t size);
+const char* tbufRead(SBufferReader* buf, size_t size);
+void        tbufReadToBuffer(SBufferReader* buf, void* dst, size_t size);
+const char* tbufReadString(SBufferReader* buf, size_t* len);
+size_t      tbufReadToString(SBufferReader* buf, char* dst, size_t size);
+const char* tbufReadBinary(SBufferReader* buf, size_t* len);
+size_t      tbufReadToBinary(SBufferReader* buf, void* dst, size_t size);
+bool        tbufReadBool(SBufferReader* buf);
+char        tbufReadChar(SBufferReader* buf);
+int8_t      tbufReadInt8(SBufferReader* buf);
+uint8_t     tbufReadUint8(SBufferReader* buf);
+int16_t     tbufReadInt16(SBufferReader* buf);
+uint16_t    tbufReadUint16(SBufferReader* buf);
+int32_t     tbufReadInt32(SBufferReader* buf);
+uint32_t    tbufReadUint32(SBufferReader* buf);
+int64_t     tbufReadInt64(SBufferReader* buf);
+uint64_t    tbufReadUint64(SBufferReader* buf);
+float       tbufReadFloat(SBufferReader* buf);
+double      tbufReadDouble(SBufferReader* buf);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/impl/inc/vnodeRequest.h b/source/dnode/vnode/impl/inc/vnodeRequest.h
index d70fc84cabe23acc0219bb037a180b528c9de105..93b4589bad78153a3853a5d6c759a639d5f5540e 100644
--- a/source/dnode/vnode/impl/inc/vnodeRequest.h
+++ b/source/dnode/vnode/impl/inc/vnodeRequest.h
@@ -23,8 +23,8 @@ extern "C" {
 #endif
 
 // SVDropTableReq
-int   vnodeBuildDropTableReq(void **buf, const SVDropTableReq *pReq);
-void *vnodeParseDropTableReq(void *buf, SVDropTableReq *pReq);
+// int   vnodeBuildDropTableReq(void **buf, const SVDropTableReq *pReq);
+// void *vnodeParseDropTableReq(void *buf, SVDropTableReq *pReq);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/vnode/impl/src/vnodeRequest.c b/source/dnode/vnode/impl/src/vnodeRequest.c
index afc43602d85f71b72761999f7a620a32789bc438..4b481bf3995af03e272253213b214ae12476fe30 100644
--- a/source/dnode/vnode/impl/src/vnodeRequest.c
+++ b/source/dnode/vnode/impl/src/vnodeRequest.c
@@ -15,6 +15,8 @@
 
 #include "vnodeDef.h"
 
+#if 0
+
 static int   vnodeBuildCreateTableReq(void **buf, const SVCreateTableReq *pReq);
 static void *vnodeParseCreateTableReq(void *buf, SVCreateTableReq *pReq);
 
@@ -113,4 +115,5 @@ int vnodeBuildDropTableReq(void **buf, const SVDropTableReq *pReq) {
 
 void *vnodeParseDropTableReq(void *buf, SVDropTableReq *pReq) {
   // TODO
-}
\ No newline at end of file
+}
+#endif
\ No newline at end of file