constexpr-sql

Key SQL features like INNER JOIN, GROUP BY, and ORDER BY are unsupported and listed as future work, limiting query complexity for real-world data processing.

Only supports GCC 9.0+ due to reliance on C++20 P0732R2, excluding projects on other compilers or older GCC versions, as explicitly stated in the README.

Multiple instantiations of the same sql::query type cause undefined behavior due to static members, forcing developers to use guarded scopes and increasing error-proneness.

Compiling without optimizations leads to template bloat and increased binary size, requiring careful build configuration as warned in the example compilation command.