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Recent commit f26c2368dc introduced a search_path cache, but left some potential out-of-memory hazards. Simplify the code and make it safer against OOM. This change reintroduces one list_copy(), losing a small amount of the performance gained in f26c2368dc. A future change may optimize away the list_copy() again if it can be done in a safer way. Discussion: https://postgr.es/m/e6fded24cb8a2c53d4ef069d9f69cc7baaafe9ef.camel@j-davis.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. 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, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.