6th October 2022: PostgreSQL 15 RC 2 Released!

Feature Description

Covering indexes for GiST (INCLUDE)

Allows additional columns to be included in as "non-key" columns in a GiST index, and if requirements are met, can return data from these columns in an index-only scan.

Fore more information, please see the documentation on Index-Only Scans & Covering Indexes.