From 6cd9fac7da0592e784f150d9889ee1e1bdc020f5 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Tue, 16 May 2023 11:30:08 +0800
Subject: [PATCH] fix linear interpolation bugs

---
 source/libs/executor/src/timesliceoperator.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/libs/executor/src/timesliceoperator.c b/source/libs/executor/src/timesliceoperator.c
index d56595dae9..cc2fffae03 100644
--- a/source/libs/executor/src/timesliceoperator.c
+++ b/source/libs/executor/src/timesliceoperator.c
@@ -310,6 +310,11 @@ static bool genInterpolationResult(STimeSliceOperatorInfo* pSliceInfo, SExprSupp
           break;
         }
 
+        if (end.key != INT64_MIN && end.key < pSliceInfo->current) {
+          hasInterp = false;
+          break;
+        }
+
         if (start.key == INT64_MIN || end.key == INT64_MIN) {
           colDataSetNULL(pDst, rows);
           break;
-- 
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