Merge pull request #8352 from SorryIamFive/develop

[TD-8315]<fix>: unused value in path src/tsdb/src/tsdbRead.c

src/tsdb/src/tsdbRead.c

@@ -1620,7 +1620,7 @@ static void mergeTwoRowFromMem(STsdbQueryHandle* pQueryHandle, int32_t capacity,
       SColIdx *pColIdx = kvRowColIdxAt(rowBody, chosen_itr);
       colId = pColIdx->colId;
       offset = pColIdx->offset;
-      value = tdGetKvRowDataOfCol(rowBody, pColIdx->offset);
+      value = tdGetKvRowDataOfCol(rowBody, offset);
     }