PgJitter

PgJitter is a PostgreSQL extension that swaps out the default LLVM JIT compiler for faster alternatives like sljit, AsmJIT, and MIR, and honestly for anyone grinding on PostgreSQL performance, this is the kind of niche tool that either solves your problem perfectly or you'll never hear about it. The technicals are there — microsecond-level native code generation — but without real-world benchmarks or community traction, it's hard to say if it's actually the move or just another interesting GitHub repo floating in the void. If you're one of the like twelve people who actively tweaks their PostgreSQL JIT setup, this is probably worth a look.