diff --git a/source/libs/function/inc/builtinsimpl.h b/source/libs/function/inc/builtinsimpl.h
index b5b7453e7a..dfdf03a5a8 100644
--- a/source/libs/function/inc/builtinsimpl.h
+++ b/source/libs/function/inc/builtinsimpl.h
@@ -118,6 +118,7 @@ int32_t           firstLastPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pB
 int32_t           firstCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 int32_t           lastCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 int32_t           getFirstLastInfoSize(int32_t resBytes);
+EFuncDataRequired firstDynDataReq(void* pRes, STimeWindow* pTimeWindow);
 EFuncDataRequired lastDynDataReq(void* pRes, STimeWindow* pTimeWindow);
 
 int32_t lastRowFunction(SqlFunctionCtx* pCtx);