diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 682f26a27b97c9578bac56c7ed0df3cea4784e48..0864095a2175a6686f7caed7bc31aa2fc6b352c8 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -2609,6 +2609,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
         SColumnIndex indexTS = {.tableIndex = index.tableIndex, .columnIndex = 0};
         SExprInfo*   pExpr = tscExprAppend(pQueryInfo, TSDB_FUNC_TS_DUMMY, &indexTS, TSDB_DATA_TYPE_TIMESTAMP,
                                          TSDB_KEYSIZE, getNewResColId(pCmd), TSDB_KEYSIZE, false);
+        tstrncpy(pExpr->base.aliasName, aAggs[TSDB_FUNC_TS_DUMMY].name, sizeof(pExpr->base.aliasName));
 
         SColumnList ids = createColumnList(1, 0, 0);
         insertResultField(pQueryInfo, colIndex, &ids, TSDB_KEYSIZE, TSDB_DATA_TYPE_TIMESTAMP, aAggs[TSDB_FUNC_TS_DUMMY].name, pExpr);