From d598f3bea72d10ebdff3d8dd4ccdfc912c8bc9c0 Mon Sep 17 00:00:00 2001
From: alexandreyc <alexandre.crayssac@gmail.com>
Date: Fri, 14 Jun 2024 12:58:01 +0200
Subject: [PATCH] Add comment

---
 rust/core/tests/common/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rust/core/tests/common/mod.rs b/rust/core/tests/common/mod.rs
index b846299f9c..3631579a3c 100644
--- a/rust/core/tests/common/mod.rs
+++ b/rust/core/tests/common/mod.rs
@@ -51,6 +51,7 @@ impl SingleBatchReader {
 }
 
 impl Iterator for SingleBatchReader {
+    // `RecordBatchReader` requires item to be wrapped within `Result`.
     type Item = std::result::Result<RecordBatch, ArrowError>;
 
     fn next(&mut self) -> Option<Self::Item> {