b48df818dc
Advancing a replication slot did not recompute the oldest xmin and LSN values across replication slots, preventing resource removal like segments not recycled at checkpoint time. The original commit that introduced the slot advancing in 9c7d06d never did the update of those oldest values, and b0afdca removed this code. This commit adds a TAP test to check segment recycling with advancing for physical slots, enforcing an extra segment switch before advancing to check if the segment gets correctly recycled after a checkpoint. Reported-by: Andres Freund Reviewed-by: Alexey Kondratov, Kyptaro Horiguchi Discussion: https://postgr.es/m/20200609171904.kpltxxvjzislidks@alap3.anarazel.de Backpatch-through: 11
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/.