14ffaece0f
Adds a new function, validating two kinds of invariants on a GIN index: - parent-child consistency: Paths in a GIN graph have to contain consistent keys. Tuples on parent pages consistently include tuples from child pages; parent tuples do not require any adjustments. - balanced-tree / graph: Each internal page has at least one downlink, and can reference either only leaf pages or only internal pages. The GIN verification is based on work by Grigory Kryachko, reworked by Heikki Linnakangas and with various improvements by Andrey Borodin. Investigation and fixes for multiple bugs by Kirill Reshke. Author: Grigory Kryachko <GSKryachko@gmail.com> Author: Heikki Linnakangas <hlinnaka@iki.fi> Author: Andrey Borodin <amborodin@acm.org> Reviewed-By: José Villanova <jose.arthur@gmail.com> Reviewed-By: Aleksander Alekseev <aleksander@timescale.com> Reviewed-By: Nikolay Samokhvalov <samokhvalov@gmail.com> Reviewed-By: Andres Freund <andres@anarazel.de> Reviewed-By: Tomas Vondra <tomas.vondra@enterprisedb.com> Reviewed-By: Kirill Reshke <reshkekirill@gmail.com> Reviewed-By: Mark Dilger <mark.dilger@enterprisedb.com> Reviewed-By: Peter Geoghegan <pg@bowt.ie> Discussion: https://postgr.es/m/45AC9B0A-2B45-40EE-B08F-BDCF5739D1E1%40yandex-team.ru
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.