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

# ETL: MD2

> Calculate the MD2 message digest hash of a string value. Use MD2 for legacy checksum generation in Integrate.io ETL pipeline data processing.

## Description

Calculates the MD2 hash of a string

## Syntax

`MD2(string_expression)`

## Examples

`MD2('hello world')` returns d9cce882ee690a5c1ce70beff3a78c77

## Return value datatype

String

## Impact of null value

If input is null, returns null.