From 2c64d08cab637c9533b17cfa6a6196a4e8d69725 Mon Sep 17 00:00:00 2001
From: xywang <xywang@taosdata.com>
Date: Fri, 4 Mar 2022 14:56:34 +0800
Subject: [PATCH] [TS-1233]<fix>: fixed coredump when timestamp collection
 excessed threshold

---
 src/query/src/qTsbuf.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/query/src/qTsbuf.c b/src/query/src/qTsbuf.c
index e6c882d0cd..408dcc9881 100644
--- a/src/query/src/qTsbuf.c
+++ b/src/query/src/qTsbuf.c
@@ -493,6 +493,10 @@ void tsBufAppend(STSBuf* pTSBuf, int32_t id, tVariant* tag, const char* pData, i
 }
 
 void tsBufFlush(STSBuf* pTSBuf) {
+  if (pTSBuf->numOfGroups <= 0) {
+    return;
+  }
+
   writeDataToDisk(pTSBuf);
   shrinkBuffer(&pTSBuf->tsData);
   
-- 
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