a625fc570c
This commit adds the possibility to define TOAST tables with oid8 as their chunk_id, based on the reloption toast_value_type. All the external TOAST pointers still rely on varatt_external_oid and a single vartag. The values inserted in the oid8 TOAST tables are fed from the OID8 value generator, casted to OID for now, as we do not have a vartag_external able to store Oid8 values yet. An upcoming commit will add support for a new vartag_external and its associated structures, with the code being able to use a different on-disk external TOAST pointer depending on the attribute type of chunk_id defined in TOAST relations. All the changes done here are mechanical, mostly around the TOAST code that needs to be able to do chunk_id lookups based on the two types now supported. Bump catalog version. Author: Michael Paquier <michael@paquier.xyz> Reviewed-by: Greg Burd <greg@burd.me> Reviewed-by: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com> Reviewed-by: Yugo Nagata <nagata@sraoss.co.jp> Discussion: https://postgr.es/m/af19kUjwjhaoUTLn@paquier.xy
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/.