From 1315deb04dfceda65bac7c0cb038b47c5313dad1 Mon Sep 17 00:00:00 2001
From: wangjiaming0909 <604227650@qq.com>
Date: Fri, 27 Sep 2024 18:17:14 +0800
Subject: [PATCH] fix rowMerger possibly null pointer

---
 source/dnode/vnode/src/tsdb/tsdbUtil.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index 00806885ef..f807ecf2d6 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -812,6 +812,7 @@ int32_t tsdbRowMergerAdd(SRowMerger *pMerger, TSDBROW *pRow, STSchema *pTSchema)
         if (!COL_VAL_IS_NONE(pColVal)) {
           if (IS_VAR_DATA_TYPE(pColVal->value.type)) {
             SColVal *pTColVal = taosArrayGet(pMerger->pArray, iCol);
+            if (!pTColVal) return terrno;
             if (!COL_VAL_IS_NULL(pColVal)) {
               code = tRealloc(&pTColVal->value.pData, pColVal->value.nData);
               if (code) return code;