From ab885b6b8c57d68b41bf4234d4b4507549cc7727 Mon Sep 17 00:00:00 2001
From: tickduan <417921451@qq.com>
Date: Thu, 29 Jul 2021 14:52:33 +0800
Subject: [PATCH] fixed BUG TD-5596

---
 src/util/src/tcompression.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/src/tcompression.c b/src/util/src/tcompression.c
index 4472633304..b6b63f46c8 100644
--- a/src/util/src/tcompression.c
+++ b/src/util/src/tcompression.c
@@ -480,6 +480,10 @@ int tsCompressTimestampImp(const char *const input, const int nelements, char *c
   int64_t *istream = (int64_t *)input;
 
   int64_t  prev_value = istream[0];
+  if(prev_value >= 0x8000000000000000) {
+     uWarn("compression timestamp is over signed long long range. ts = 0x%"PRIx64" \n", prev_value);
+     goto _exit_over;
+  }
   int64_t  prev_delta = -prev_value;
   uint8_t  flags = 0, flag1 = 0, flag2 = 0;
   uint64_t dd1 = 0, dd2 = 0;
-- 
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