diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 10fa5a23b40ca7cf33823a52136edbadabd7317e..a6a1d6ea05ae92ddb823bab71850cf1d33fce50c 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -1264,7 +1264,7 @@ static void projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSData
 
       pResult->info.rows = pCtx[0].input.numOfRows;
     } else if (pExpr[k].pExpr->nodeType == QUERY_NODE_VALUE) {
-      SVariant *pVal = pExpr->pExpr->pVal;
+      SVariant *pVal = pExpr[k].pExpr->pVal;
       char *payload;
       if (IS_VAR_DATA_TYPE(pVal->nType)) {
         payload = taosMemoryCalloc(1, pVal->nLen + VARSTR_HEADER_SIZE);