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The existance of the assert_enabled variable (backing the debug_assertions GUC) reduced the amount of knowledge some static code checkers (like coverity and various compilers) could infer from the existance of the assertion. That could have been solved by optionally removing the assertion_enabled variable from the Assert() et al macros at compile time when some special macro is defined, but the resulting complication doesn't seem to be worth the gain from having debug_assertions. Recompiling is fast enough. The debug_assertions GUC is still available, but readonly, as it's useful when diagnosing problems. The commandline/client startup option -A, which previously also allowed to enable/disable assertions, has been removed as it doesn't serve a purpose anymore. While at it, reduce code duplication in bufmgr.c and localbuf.c assertions checking for spurious buffer pins. That code had to be reindented anyway to cope with the assert_enabled removal.
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.