From 3155cd6e017e5ec22e35eead4608bbaf0eb0a4ab Mon Sep 17 00:00:00 2001
From: Noel Kwan <noelkwan1998@gmail.com>
Date: Fri, 11 Aug 2023 17:08:49 +0800
Subject: [PATCH] fix

---
 src/stream/src/executor/backfill/no_shuffle_backfill.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/stream/src/executor/backfill/no_shuffle_backfill.rs b/src/stream/src/executor/backfill/no_shuffle_backfill.rs
index 003b64c392d9b..ec1f67150fa80 100644
--- a/src/stream/src/executor/backfill/no_shuffle_backfill.rs
+++ b/src/stream/src/executor/backfill/no_shuffle_backfill.rs
@@ -284,6 +284,8 @@ where
                                                 &self.output_indices,
                                             ));
                                         }
+                                    } else {
+                                        upstream_chunk_buffer.clear();
                                     }
 
                                     self.metrics