Update arrow-ipc/src/reader.rs

Co-authored-by: Andrew Lamb <[email protected]>
apache · Dec 8, 2023 · 014ba5f · 014ba5f
1 parent eae3ff5
commit 014ba5f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arrow-ipc/src/reader.rs b/arrow-ipc/src/reader.rs
@@ -575,6 +575,7 @@ impl<R: Read + Seek> FileReader<R> {
     ///
     /// Returns errors if the file does not meet the Arrow Format footer requirements
     pub fn try_new(mut reader: R, projection: Option<Vec<usize>>) -> Result<Self, ArrowError> {
+        // Space for ARROW_MAGIC (6 bytes) and length (4 bytes)
         let mut buffer = [0; 10];
         reader.seek(SeekFrom::End(-10))?;
         reader.read_exact(&mut buffer)?;