From b1ead824f861090e4eb88b7d1ba034df610e34c2 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Mon, 15 May 2023 14:26:09 +0800
Subject: [PATCH] fix: fix linear interpolation error

---
 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 29e3668ec4..168bdf3f7c 100644
--- a/source/libs/executor/src/timesliceoperator.c
+++ b/source/libs/executor/src/timesliceoperator.c
@@ -244,6 +244,11 @@ 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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