eb5e8bae26
FrozenTransactionId, not the XID of the creating transaction. Without this it's possible for a reference to a long-gone CLOG record to occur, per Christian Meunier's bug report of 10-Jan-02. Worse, the sequence tuple would become invisible to SELECTs after 2 billion transactions. Since the fix is applied during sequence creation it does not help existing databases, unless you drop and recreate every sequence. However, we intend to force initdb for 7.2RC1 anyway, to fix a pg_proc error, so I see no need to do more for this problem.
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 several language bindings, including C, C++, Perl, Python, and Tcl, as well as drivers for JDBC and ODBC. 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 ftp://ftp.postgresql.org/pub/. For more information look at our web site located at http://www.postgresql.org/.