diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index f10646e3a364fd09eb994b6b210373cbd3dc3d2d..5df25e1b61f005630a1204a12b6b4ebcf906b53a 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -2287,6 +2287,7 @@ int32_t tscHandleFirstRoundStableQuery(SSqlObj *pSql) {
 
   SArray* pColList = pNewQueryInfo->colList;
   pNewQueryInfo->colList = NULL;
+  pNewQueryInfo->fillType = TSDB_FILL_NONE;
 
   tscClearSubqueryInfo(pCmd);
   tscFreeSqlResult(pSql);
diff --git a/src/query/src/qSqlParser.c b/src/query/src/qSqlParser.c
index 4d23a9685c36853250aa21e2378cb01584798876..e287751b50cbcdd3473c670e85cbafb3a95b3000 100644
--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -146,7 +146,8 @@ tSqlExpr *tSqlExprCreateIdValue(SStrToken *pToken, int32_t optrType) {
     pSqlExpr->type    = SQL_NODE_VALUE;
     pSqlExpr->flags  |= 1 << EXPR_FLAG_NS_TIMESTAMP;
   } else if (optrType == TK_VARIABLE) {
-    // use nanosecond by default TODO set value after getting database precision
+    // use nanosecond by default
+    // TODO set value after getting database precision
     int32_t ret = parseAbsoluteDuration(pToken->z, pToken->n, &pSqlExpr->value.i64, TSDB_TIME_PRECISION_NANO);
     if (ret != TSDB_CODE_SUCCESS) {
       terrno = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;