diff --git a/src/util/inc/tcoding.h b/src/util/inc/tcoding.h
index 636f9c5e50de40e3b311833515c5628de742c6a2..ff34c1560703a820b296911065c42e224fefcc03 100644
--- a/src/util/inc/tcoding.h
+++ b/src/util/inc/tcoding.h
@@ -364,15 +364,6 @@ static FORCE_INLINE void *taosDecodeString(void *buf, char **value) {
   return POINTER_SHIFT(buf, size);
 }
 
-// ------ blank
-static FORCE_INLINE int taosEncodeBlank(void **buf, int nblank) {
-  // TODO
-}
-
-static FORCE_INLINE void *taosDecodeBlank(void *buf) {
-  // TODO
-}
-
 #ifdef __cplusplus
 }
 #endif