Navigation : PostgreSQL 12.22 Documentation > Chapter 31. Just-in-Time Compilation (JIT) Chapter 31. Just-in-Time Compilation (JIT) Chapter 31. Just-in-Time Compilation ( JIT ) Prev Up Part III. Server Administration Home Next Table of Contents 31.1. What Is JIT compilation? 31.1.1. JIT Accelerated Operations 31.1.2. Inlining 31.1.3. Optimization 31.2. When to JIT ? 31.3. Configuration 31.4. Extensibility 31.4.1. Inlining Support for Extensions 31.4.2. Pluggable JIT Providers This chapter explains what just-in-time compilation is, and how it can be configured in PostgreSQL .