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It's not OK to do that without calling CHECK_FOR_INTERRUPTS(). Let the next wait loop deal with it, following the usual pattern. One consequence of this bug was that a SIGTERM delivered in a very narrow timing window could leave a parallel worker process waiting forever for a condition variable that will never be signaled, after an error was raised in other process. The code is a bit different in the stable branches due to commit 1321509f, making problems less likely there. No back-patch for now, but we may finish up deciding to make a similar change after more discussion. Author: Thomas Munro Reviewed-by: Shawn Debnath Reported-by: Tomas Vondra Discussion: https://postgr.es/m/CA%2BhUKGJOm8zZHjVA8svoNT3tHY0XdqmaC_kHitmgXDQM49m1dA%40mail.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. 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/.