mirror of
https://github.com/postgres/postgres.git
synced 2025-04-25 21:42:33 +03:00
98c50656ca
When a backend process is forked, we initialize the system's random number generator with srandom(). The seed used is derived from the backend's pid and the timestamp. However, we only used the microseconds part of the timestamp, and it was XORed with the pid, so the total range of different seed values chosen was 0-999999. That's quite limited. Change the code to also use the seconds part of the timestamp in the seed, and shift the microseconds so that all 32 bits of the seed are used. Honza Horak
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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.