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This commit adds CHECK_FOR_INTERRUPTS to loops iterating over shared buffers in several pg_buffercache functions, allowing them to be interrupted during long-running operations. Backpatch to all supported versions. Add CHECK_FOR_INTERRUPTS to the loop in pg_buffercache_pages() in all supported branches, and to pg_buffercache_summary() and pg_buffercache_usage_counts() in version 16 and newer. Author: SATYANARAYANA NARLAPURAM <satyanarlapuram@gmail.com> Discussion: https://postgr.es/m/CAHg+QDcejeLx7WunFT3DX6XKh1KshvGKa8F5au8xVhqVvvQPRw@mail.gmail.com Backpatch-through: 13
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/.