# fuzzystrmatch 

The `fuzzystrmatch` module provides functions to determine similarities and distance between strings based on various algorithms.

The Greenplum Database `fuzzystrmatch` module is equivalent to the PostgreSQL `fuzzystrmatch` module. There are no Greenplum Database or MPP-specific considerations for the module.

## <a id="topic_reg"></a>Installing and Registering the Module 

The `fuzzystrmatch` module is installed when you install Greenplum Database. Before you can use any of the functions defined in the module, you must register the `fuzzystrmatch` extension in each database in which you want to use the functions. Refer to [Installing Additional Supplied Modules](../../install_guide/install_modules.html) for more information.

## <a id="topic_info"></a>Module Documentation 

See [fuzzystrmatch](https://www.postgresql.org/docs/12/fuzzystrmatch.html) in the PostgreSQL documentation for detailed information about the individual functions in this module.

