Navigation : PostgreSQL 15.12 Documentation > Chapter 69. SP-GiST Indexes Chapter 69. SP-GiST Indexes Chapter 69. SP-GiST Indexes Prev Up Part VII. Internals Home Next Table of Contents 69.1. Introduction 69.2. Built-in Operator Classes 69.3. Extensibility 69.4. Implementation 69.4.1. SP-GiST Limits 69.4.2. SP-GiST Without Node Labels 69.4.3. " All-the-Same " Inner Tuples 69.5. Examples