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This seems more correct, because other before_shmem_exit calls may expect the infrastructure that is needed to run queries and access the database to be working, and also because this cleanup has nothing to do with shared memory. This is a back-patch of bab150045bd9. There were no known user-visible consequences to this, though, apart from what was previous fixed by commit 303640199d0 and back-patched as commit bcbc27251d35 and commit f7013683d9bb, so bab150045bd9 was not no back-patched at the time. Bharath Rupireddy Discussion: http://postgr.es/m/CALj2ACWk7j4F2v2fxxYfrroOF=AdFNPr1WsV+AGtHAFQOqm_pw@mail.gmail.com Backpatch-through: 13, 12
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/.