alamb commented on code in PR #4434:
URL: https://github.com/apache/arrow-rs/pull/4434#discussion_r1238639606
##########
arrow-ipc/src/reader.rs:
##########
@@ -647,9 +649,18 @@ impl<R: Read + Seek> FileReader<R> {
reader.seek(SeekFrom::End(-10 - footer_len as i64))?;
reader.read_exact(&mut footer_data)?;
- let footer = crate::root_as_footer(&footer_data[..]).map_err(|err| {
- ArrowError::IoError(format!("Unable to get root as footer:
{err:?}"))
- })?;
+ // construct verifier options that reflect actual number of columns
+ // in file
Review Comment:
```suggestion
// in file and avoid an error if the file contains more than 1M rows
```
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