e5d25959cf
When repacking a table concurrently, some border conditions can cause a concurrent update to propagate the original old tuple to the transient table (such as a trigger that returns OLD). That's essentially just wasted space, which REPACK is there to remove. Prevent that by setting the isnull flag to true for any column cataloged as dropped in tuples being "replayed" as concurrent updates. Reported-by: Radim Marek <radim@boringsql.com> Reviewed-by: Antonin Houska <ah@cybertec.at> Backpatch: 19 Discussion: https://postgr.es/m/CAJgoLkK2UBzB1J9buCsSUbjf7bOqz-o_0=CeiTruU789BhBw-Q@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/.