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This extends ad98fb14226ae6456fbaed7990ee7591cbe5efd2 to invals of inplace updates. Trouble requires an inplace update of a catalog having a TOAST table, so only pg_database was at risk. (The other catalog on which core code performs inplace updates, pg_class, has no TOAST table.) Trouble would require something like the inplace-inval.spec test. Consider GRANT ... ON DATABASE fetching a stale row from cache and discarding a datfrozenxid update that vac_truncate_clog() has already relied upon. Back-patch to v12 (all supported versions). Reviewed (in an earlier version) by Robert Haas. Discussion: https://postgr.es/m/20240114201411.d0@rfd.leadboat.com Discussion: https://postgr.es/m/20240512232923.aa.nmisch@google.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/.