2b3d11aaed
This refactoring eases a little bit a follow-up change to add support for 8-byte TOAST value IDs, as the maximum chunk size allowed for a single chunk of TOASTed data depends on the size of varatt_external, its value ID being part of it. It is worth noting that TOAST_MAX_CHUNK_SIZE resolves as a uintptr_t, so the previous calculations were in 64-bit unsigned arithmetic. These are now done in int32, which still works the same way due to an external TOAST value being bounded to 1GB. Author: Michael Paquier <michael@paquier.xyz> Reviewed-by: Yugo Nagata <nagata@sraoss.co.jp> Reviewed-by: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com> Discussion: https://postgr.es/m/CALj2ACVnO6jjs5aRx3dSOBy9LV7=iakPBR1eOvoeB8rL8Q47zg@mail.gmail.com
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/.