Add comment

apache · Jun 14, 2024 · d598f3b · d598f3b
1 parent e6124f5
commit d598f3b
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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> {