f6b8f19a08
Commit 49f49def took entirely the wrong approach to fixing this issue. Just allocate a local buffer access strategy in each individual worker instead of trying to propagate state. This state was never propagated by parallel VACUUM in the first place. It looks like the only reason that this worked following commit 40d964ec was that it involved static global variables, which are initialized to 0 per the C standard. A more comprehensive fix may be necessary, even on HEAD. This fix should at least get the buildfarm green once again. Thanks once again to Thomas Munro for continued off-list assistance with the issue.
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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.