From 8c3cc0161adaaeff9267808dbe79186383e5441f Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Sat, 6 Aug 2022 16:18:11 +0800
Subject: [PATCH] fix(query): fix interp fill(next) result errors

---
 source/libs/executor/src/timewindowoperator.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 9fcb255e9e..f078bf4b56 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -2344,8 +2344,9 @@ static SSDataBlock* doTimeslice(SOperatorInfo* pOperator) {
           break;
         }
       } else if (ts < pSliceInfo->current) {
-        //in case interpolation window starts and ends between two datapoints, fill(prev) need to interpolate
+        //in case interpolation window starts and ends between two datapoints, fill(prev), fill(next) need to interpolate
         doKeepPrevRows(pSliceInfo, pBlock, i);
+        doKeepNextRows(pSliceInfo, pBlock, i + 1);
 
         if (i < pBlock->info.rows - 1) {
           int64_t nextTs = *(int64_t*)colDataGetData(pTsCol, i + 1);
-- 
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