- Dataset::filter_pipeline() (reader, lazy and mmap variants) swallowed parse
errors with `.ok()`, so a malformed pipeline message silently became "no
filters" and the still-compressed chunk bytes were returned as the data. It
now returns Result<Option<_>>; a present-but-unparseable pipeline is
Error::Format.
- FileBuilder::write used std::fs::write, which truncates the destination
first: a crash mid-write destroyed the existing file. It now writes a
sibling temp file, syncs it, renames it over the target and syncs the
directory, cleaning the temp file up on failure.
Co-Authored-By: Claude Fable 5.1 <[email protected]>
