From dd2137eab73dad3314a2bde69c58fed0965b44a3 Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Tue, 7 Mar 2023 09:22:20 +0800
Subject: [PATCH] fix: empty ts range in nested query

---
 source/libs/parser/src/parTranslater.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index fd2d5d53f4..b70a0f83a4 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -2500,6 +2500,12 @@ static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
       STempTableNode* pTempTable = (STempTableNode*)pTable;
       code = translateSubquery(pCxt, pTempTable->pSubquery);
       if (TSDB_CODE_SUCCESS == code) {
+        if (QUERY_NODE_SELECT_STMT == nodeType(pTempTable->pSubquery) && 
+           ((SSelectStmt*)pTempTable->pSubquery)->isEmptyResult &&
+           isSelectStmt(pCxt->pCurrStmt)) {
+          ((SSelectStmt*)pCxt->pCurrStmt)->isEmptyResult = true;
+        }
+
         pTempTable->table.precision = getStmtPrecision(pTempTable->pSubquery);
         pTempTable->table.singleTable = stmtIsSingleTable(pTempTable->pSubquery);
         code = addNamespace(pCxt, pTempTable);