> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sdf.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hash Functions

## `farm_fingerprint`

*Supported Signatures*

```sql theme={null}
function farm_fingerprint $1($1) returns bigint
	where $1 in (string, bytes)
```

[🔗 Official Documentation](https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#farm_fingerprint)

## `md5`

*Supported Signatures*

```sql theme={null}
function md5 $1($1) returns bytes
	where $1 in (string, bytes)
```

[🔗 Official Documentation](https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#md5)

## `sha1`

*Supported Signatures*

```sql theme={null}
function sha1 $1($1) returns bytes
	where $1 in (string, bytes)
```

[🔗 Official Documentation](https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#sha1)

## `sha256`

*Supported Signatures*

```sql theme={null}
function sha256 $1($1) returns bytes
	where $1 in (string, bytes)
```

[🔗 Official Documentation](https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#sha256)

## `sha512`

*Supported Signatures*

```sql theme={null}
function sha512 $1($1) returns bytes
	where $1 in (string, bytes)
```

[🔗 Official Documentation](https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#sha512)