# ALTER INDEX
`ALTER INDEX` changes the parameters of an index.

> For the complete documentation index, see [llms.txt](https://preview.materialize.com/materialize/40269/llms.txt).


Use `ALTER INDEX` to:
- Rename an index.

## Syntax


**Rename:**

To rename an index:



```mzsql
ALTER INDEX <name> RENAME TO <new_name>;

```

| Syntax element | Description |
| --- | --- |
| `<name>` | The current name of the index you want to alter.  |
| `<new_name>` | The new name of the index.  |
See also [Renaming restrictions](https://preview.materialize.com/materialize/40269/markdown-docs/sql/identifiers/index.md#renaming-restrictions).







## Privileges

The privileges required to execute this statement are:

- Ownership of the index.

## Related pages

- [`SHOW INDEXES`](https://preview.materialize.com/materialize/40269/markdown-docs/sql/show-indexes/index.md)
- [`SHOW CREATE VIEW`](https://preview.materialize.com/materialize/40269/markdown-docs/sql/show-create-view/index.md)
- [`SHOW VIEWS`](https://preview.materialize.com/materialize/40269/markdown-docs/sql/show-views/index.md)
- [`SHOW SOURCES`](https://preview.materialize.com/materialize/40269/markdown-docs/sql/show-sources/index.md)
- [`SHOW SINKS`](https://preview.materialize.com/materialize/40269/markdown-docs/sql/show-sinks/index.md)