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pageinspect has occasionally failed on slow buildfarm members, with symptoms indicating that the expected effects of VACUUM FREEZE didn't happen. This is presumably because a background transaction such as auto-analyze was holding back global xmin. We can work around that by using a temp table in the test. Since commit a7212be8b, that will use an up-to-date cutoff xmin regardless of other processes. And pageinspect itself shouldn't really care whether the table is temp. Back-patch to v14. There would be no point in older branches without back-patching a7212be8b, which seems like more trouble than the problem is worth. Discussion: https://postgr.es/m/2892135.1668976646@sss.pgh.pa.us
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/.