This is my first Boost review. I have many years of experience developing C++ code and have spent the last four years contributing to an open-source C++ library. I am familiar with SQLite, though I have not used features like virtual tables in production. ## Design - I find the layering clear and Boost-idiomatic: `connection`, `statement`, and `resultset` are well-defined, and the non-throwing interface that uses `boost::system::error_code` is easy to apply in real code. ## Implementation - I see a clean separation of concerns, consistent error handling, and careful lifetime management for vtables and result sets. - Issues identified: - 1. In `detail::convert_row`, `system::error_code ec` is passed by value, so assignments do not escape. Pass by reference to propagate errors. - 2. In `static_resultset.hpp`, `convert_field(boost::optional<T>&, const field&)` calls `target.emplace_back()`. `boost::optional` has `emplace()` only; this would fail on instantiation. - 3. In `json.hpp` serializer, growth logic mis-tracks total bytes and passes wrong sizes: subsequent `read` uses full capacity from `c + len(last_chunk)`, and final length uses only the last chunk. - 4. In `statement.hpp`, tuple binding uses `mp11::tuple_for_each(std::move(vec), ...)` even for `const std::tuple&` (no moves; move-only types fail). Also fix typos like "To few parameters provided". ## Documentation - The `readme.md` and Asciidoctor docs provide a good starting point and are easy to navigate. - Typos: - `readme.md` contains typos ("aggregrate", "multiple time") and a code snippet that prints the same tuple element twice (`std::get<0>`). Another snippet includes stray characters (`auto r = q.current();''`). - Header comments contain typos ("parametert", "statemens"). ## Potential usefulness - I consider the library highly useful: it provides a modern, Boost-aligned SQLite interface with robust support for advanced features that fills a notable gap in the ecosystem. ## Local build - I was able to configure and build the library with GCC 13.3.0; the tests/examples build options worked as expected. - Testing environment: - Ubuntu 24.04.3 LTS on WSL2 - GCC 13.3.0 - CMake: 3.28.3; Generator: GNU Make 4.3 - SQLite: 3.45.1 - Boost: 4c41118 (latest as of Aug 25) installed at `/opt/boost` ## Effort - I spent several hours reading headers, selected sources, build files, and documentation, and I verified the build locally. ## Decision: CONDITIONALLY ACCEPT - Address the issues detailed above (see `Implementation: Issues identified` and `Documentation: Typos`) before acceptance.