From 91ebb55544fa7e26e9d3c9ebc32db29a3020253d Mon Sep 17 00:00:00 2001
From: shenglian zhou <shenglian_zhou@163.com>
Date: Wed, 5 Jan 2022 09:36:36 +0800
Subject: [PATCH] (query,insert,other,connector,tools):apply the retrieve empty
 result only to stable

---
 src/client/src/tscUtil.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 0d56efc996..481fe6a743 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -3980,11 +3980,7 @@ void executeQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo) {
       pSql->pSubs[i] = pNew;
 
       SSqlCmd* pCmd = &pNew->cmd;
-      if (pSub->command == TSDB_SQL_RETRIEVE_EMPTY_RESULT) {
-        pCmd->command = TSDB_SQL_RETRIEVE_EMPTY_RESULT;
-      } else {
-        pCmd->command = TSDB_SQL_SELECT;
-      }
+      pCmd->command = TSDB_SQL_SELECT;
       if ((code = tscAddQueryInfo(pCmd)) != TSDB_CODE_SUCCESS) {
         goto _error;
       }
@@ -4002,6 +3998,11 @@ void executeQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo) {
 
       // create sub query to handle the sub query.
       SQueryInfo* pq = tscGetQueryInfo(&psub->cmd);
+      STableMetaInfo* pSubMeta = tscGetMetaInfo(pq, 0);
+      if (UTIL_TABLE_IS_SUPER_TABLE(pSubMeta) &&
+          pq->command == TSDB_SQL_RETRIEVE_EMPTY_RESULT) {
+        psub->cmd.command = TSDB_SQL_RETRIEVE_EMPTY_RESULT;
+      }
       executeQuery(psub, pq);
     }
 
-- 
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