Extend the NZPLSQL language with UDFs

If you or other users at your site create user-defined functions (UDFs) for your Netezza Performance Server systems, you can use UDFs to extend the NZPLSQL language. These UDFs must be invoked by using SQL that is designed to run only on the Netezza Performance Server host inside Postgres. For details about the use of UDFs to extend NZPLSQL, see the IBM Netezza User-Defined Functions Developer’s Guide.