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This becomes useful when used to retry a transaction after a serialization error or deadlock abort. (We don't yet have that feature, but this is preparation for it.) While at it, use separate random state for thread administratrivia such as deciding which script to run, how long to delay for throttling, or whether to log a message when sampling; this not only makes these tasks independent of each other, but makes the actual thread run deterministic. Author: Marina Polyakova Reviewed-by: Fabien Coelho Discussion: https://postgr.es/m/72a0d590d6ba06f242d75c2e641820ec@postgrespro.ru
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/.