Worked on the lancedb/lance repository to address a critical data integrity issue affecting nested list decoding across page boundaries. Focused on backend development using Rust and Arrow, the work involved correcting the reader’s handling of multi-batch List<List<T>> columns to prevent data corruption without requiring changes to existing on-disk files. The solution aligned reader truncation with per-page write indices, ensuring accurate decoding and preserving data reliability. Comprehensive regression tests and end-to-end validation were added to confirm correctness, with all changes scoped to the reader component. This effort reinforced stability for multi-batch workloads and maintained compatibility with the full encoding suite.