From 353112c01ee870378d65b6c36e23b178c2f83015 Mon Sep 17 00:00:00 2001
From: dapan1121 <89396746@qq.com>
Date: Wed, 27 Jan 2021 13:53:31 +0800
Subject: [PATCH] fix bug

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

diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index d045000e24..824fff574e 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -2127,7 +2127,11 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, __async_cb_func_t
                                      pTableMetaInfo->tagColList, pTableMetaInfo->pVgroupTables);
   } else {  // transfer the ownership of pTableMeta to the newly create sql object.
     STableMetaInfo* pPrevInfo = tscGetTableMetaInfoFromCmd(&pPrevSql->cmd, pPrevSql->cmd.clauseIndex, 0);
-
+    if (pPrevInfo->pTableMeta && pPrevInfo->pTableMeta->tableType < 0) {
+      terrno = TSDB_CODE_TSC_APP_ERROR;
+      goto _error;
+    }
+    
     STableMeta*  pPrevTableMeta = tscTableMetaDup(pPrevInfo->pTableMeta);
     SVgroupsInfo* pVgroupsInfo = pPrevInfo->vgroupList;
     pFinalInfo = tscAddTableMetaInfo(pNewQueryInfo, &pTableMetaInfo->name, pPrevTableMeta, pVgroupsInfo, pTableMetaInfo->tagColList,
-- 
GitLab