# 64.2. Built-in Operator Classes

The core PostgreSQL distribution includes the GiST operator classes shown in [Table 64.1](https://www.postgresql.org/docs/12/gist-builtin-opclasses.html#GIST-BUILTIN-OPCLASSES-TABLE). (Some of the optional modules described in [Appendix F](https://www.postgresql.org/docs/12/contrib.html) provide additional GiST operator classes.)

#### **Table 64.1. Built-in GiST Operator Classes**

| Name           | Indexed Data Type | Indexable Operators                                                         | Ordering Operators |
| -------------- | ----------------- | --------------------------------------------------------------------------- | ------------------ |
| `box_ops`      | `box`             | `&&` `&>` `&<` `&<\|` `>>` `<<` `<<\|` `<@` `@>` `@` `\|&>` `\|>>` `~` `~=` |                    |
| `circle_ops`   | `circle`          | `&&` `&>` `&<` `&<\|` `>>` `<<` `<<\|` `<@` `@>` `@` `\|&>` `\|>>` `~` `~=` | `<->`              |
| `inet_ops`     | `inet`, `cidr`    | `&&` `>>` `>>=` `>` `>=` `<>` `<<` `<<=` `<` `<=` `=`                       |                    |
| `point_ops`    | `point`           | `>>` `>^` `<<` `<@` `<@` `<@` `<^` `~=`                                     | `<->`              |
| `poly_ops`     | `polygon`         | `&&` `&>` `&<` `&<\|` `>>` `<<` `<<\|` `<@` `@>` `@` `\|&>` `\|>>` `~` `~=` | `<->`              |
| `range_ops`    | any range type    | `&&` `&>` `&<` `>>` `<<` `<@` `-\|-` `=` `@>` `@>`                          |                    |
| `tsquery_ops`  | `tsquery`         | `<@` `@>`                                                                   |                    |
| `tsvector_ops` | `tsvector`        | `@@`                                                                        |                    |

For historical reasons, the `inet_ops` operator class is not the default class for types `inet` and `cidr`. To use it, mention the class name in `CREATE INDEX`, for example

```
CREATE INDEX ON my_table USING GIST (my_inet_column inet_ops);
```


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