From 99030690c2cf68c5f5e76dd697f8c42ed92eb9a9 Mon Sep 17 00:00:00 2001
From: slzhou <shenglian_zhou@163.com>
Date: Fri, 12 Aug 2022 17:19:56 +0800
Subject: [PATCH] fix: set operator early when select * from stb limit n

---
 source/libs/executor/src/projectoperator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/executor/src/projectoperator.c b/source/libs/executor/src/projectoperator.c
index 9a7c3cf7fb..d108249e88 100644
--- a/source/libs/executor/src/projectoperator.c
+++ b/source/libs/executor/src/projectoperator.c
@@ -174,7 +174,7 @@ static int32_t doIngroupLimitOffset(SLimitInfo* pLimitInfo, uint64_t groupId, SS
   if (pLimitInfo->limit.limit >= 0 && pLimitInfo->numOfOutputRows + pBlock->info.rows >= pLimitInfo->limit.limit) {
     int32_t keepRows = (int32_t)(pLimitInfo->limit.limit - pLimitInfo->numOfOutputRows);
     blockDataKeepFirstNRows(pBlock, keepRows);
-    if (pLimitInfo->slimit.limit > 0 && pLimitInfo->slimit.limit <= pLimitInfo->numOfOutputGroups) {
+    if (pLimitInfo->slimit.limit == -1 || pLimitInfo->slimit.limit > 0 && pLimitInfo->slimit.limit <= pLimitInfo->numOfOutputGroups) {
       doSetOperatorCompleted(pOperator);
     }
   }