> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/14/internals/brin/built-in-operator-classes.md).

# 67.2. Built-in Operator Classes

The core PostgreSQL distribution includes the BRIN operator classes shown in [Table 67.1](https://www.postgresql.org/docs/12/brin-builtin-opclasses.html#BRIN-BUILTIN-OPCLASSES-TABLE).

The *minmax* operator classes store the minimum and the maximum values appearing in the indexed column within the range. The *inclusion* operator classes store a value which includes the values in the indexed column within the range.

#### **Table 67.1. Built-in BRIN Operator Classes**

| Name                     | Indexed Data Type             | Indexable Operators                                                 |
| ------------------------ | ----------------------------- | ------------------------------------------------------------------- |
| `int8_minmax_ops`        | `bigint`                      | `<` `<=` `=` `>=` `>`                                               |
| `bit_minmax_ops`         | `bit`                         | `<` `<=` `=` `>=` `>`                                               |
| `varbit_minmax_ops`      | `bit varying`                 | `<` `<=` `=` `>=` `>`                                               |
| `box_inclusion_ops`      | `box`                         | `<<` `&<` `&&` `&>` `>>` `~=` `@>` `<@` `&<\|` `<<\|` `\|>>` `\|&>` |
| `bytea_minmax_ops`       | `bytea`                       | `<` `<=` `=` `>=` `>`                                               |
| `bpchar_minmax_ops`      | `character`                   | `<` `<=` `=` `>=` `>`                                               |
| `char_minmax_ops`        | `"char"`                      | `<` `<=` `=` `>=` `>`                                               |
| `date_minmax_ops`        | `date`                        | `<` `<=` `=` `>=` `>`                                               |
| `float8_minmax_ops`      | `double precision`            | `<` `<=` `=` `>=` `>`                                               |
| `inet_minmax_ops`        | `inet`                        | `<` `<=` `=` `>=` `>`                                               |
| `network_inclusion_ops`  | `inet`                        | `&&` `>>=` `<<=` `=` `>>` `<<`                                      |
| `int4_minmax_ops`        | `integer`                     | `<` `<=` `=` `>=` `>`                                               |
| `interval_minmax_ops`    | `interval`                    | `<` `<=` `=` `>=` `>`                                               |
| `macaddr_minmax_ops`     | `macaddr`                     | `<` `<=` `=` `>=` `>`                                               |
| `macaddr8_minmax_ops`    | `macaddr8`                    | `<` `<=` `=` `>=` `>`                                               |
| `name_minmax_ops`        | `name`                        | `<` `<=` `=` `>=` `>`                                               |
| `numeric_minmax_ops`     | `numeric`                     | `<` `<=` `=` `>=` `>`                                               |
| `pg_lsn_minmax_ops`      | `pg_lsn`                      | `<` `<=` `=` `>=` `>`                                               |
| `oid_minmax_ops`         | `oid`                         | `<` `<=` `=` `>=` `>`                                               |
| `range_inclusion_ops`    | `any range type`              | `<<` `&<` `&&` `&>` `>>` `@>` `<@` `-\|-` `=` `<` `<=` `=` `>` `>=` |
| `float4_minmax_ops`      | `real`                        | `<` `<=` `=` `>=` `>`                                               |
| `int2_minmax_ops`        | `smallint`                    | `<` `<=` `=` `>=` `>`                                               |
| `text_minmax_ops`        | `text`                        | `<` `<=` `=` `>=` `>`                                               |
| `tid_minmax_ops`         | `tid`                         | `<` `<=` `=` `>=` `>`                                               |
| `timestamp_minmax_ops`   | `timestamp without time zone` | `<` `<=` `=` `>=` `>`                                               |
| `timestamptz_minmax_ops` | `timestamp with time zone`    | `<` `<=` `=` `>=` `>`                                               |
| `time_minmax_ops`        | `time without time zone`      | `<` `<=` `=` `>=` `>`                                               |
| `timetz_minmax_ops`      | `time with time zone`         | `<` `<=` `=` `>=` `>`                                               |
| `uuid_minmax_ops`        | `uuid`                        | `<` `<=` `=` `>=` `>`                                               |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.postgresql.tw/14/internals/brin/built-in-operator-classes.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.