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In normal builds, this isn't very important, because the leaks go into fairly short-lived contexts, but under CLOBBER_CACHE_ALWAYS, this can result in leaking hundreds of megabytes into MessageContext, which probably explains recent failures on hyrax. This may or may not be the best long-term strategy for dealing with this leak, but we can change it later if we come up with something better. For now, do this to make the buildfarm green again (hopefully). Commit 898e5e3290a72d288923260143930fb32036c00c seems to have exacerbated this problem for reasons that are not quite clear, but I don't believe it's actually the cause. Discussion: http://postgr.es/m/CA+TgmoY3bRmGB6-DUnoVy5fJoreiBJ43rwMrQRCdPXuKt4Ykaw@mail.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/.