# 68. GiST Indexes

- [64.1. Introduction](/15/internals/gist-indexes/introduction.md)
- [64.2. Built-in Operator Classes](/15/internals/gist-indexes/built-in-operator-classes.md)
- [64.3. Extensibility](/15/internals/gist-indexes/extensibility.md)
- [64.4. Implementation](/15/internals/gist-indexes/implementation.md)
- [64.5. Examples](/15/internals/gist-indexes/examples.md)