til/postgres/edit-existing-functions.md

Edit Existing Functions

In the psql console, use \ef with the name of a function to fetch and open the definition of the function. The function will be opened in your system $EDITOR in the form of the create or replace function query.

Executing

> \ef now

will open the following in your default editor

CREATE OR REPLACE FUNCTION pg_catalog.now()¬
 RETURNS timestamp with time zone¬
 LANGUAGE internal¬
 STABLE STRICT¬
AS $function$now$function$¬