Terminology

Trusted Language Extensions for PostgreSQL is the official name of the open source development kit that's packaged as the pg_tle extension. It's available for use on any PostgreSQL system. For more information, see aws/pg_tle on GitHub.

Trusted Language Extensions is the short name for Trusted Language Extensions for PostgreSQL. This shortened name and its abbreviation (TLE) are also used in this documentation.

A trusted language is a programming or scripting language that has specific security attributes. For example, trusted languages typically restrict access to the file system, and they limit use of specified networking properties. The TLE development kit is designed to support trusted languages. PostgreSQL supports several different languages that are used to create trusted or untrusted extensions. For an example, see Trusted and Untrusted PL/Perl in the PostgreSQL documentation. When you create an extension using Trusted Language Extensions, the extension inherently uses trusted language mechanisms.

A TLE extension is a PostgreSQL extension that's been created by using the Trusted Language Extensions (TLE) development kit.