rdelaage/postgresql
1
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2024-08-21 21:03:22 +02:00
Code Issues Packages Projects Releases Wiki Activity
19,622 Commits 36 Branches 606 Tags 423 MiB
C 86%
PLpgSQL 5.5%
Perl 4.1%
Yacc 1.3%
Makefile 0.7%
Other 2.3%
60b2444cc3
Go to file
Tom Lane 60b2444cc3 Add code to prevent transaction ID wraparound by enforcing a safe limit 
in GetNewTransactionId().  Since the limit value has to be computed
before we run any real transactions, this requires adding code to database
startup to scan pg_database and determine the oldest datfrozenxid.
This can conveniently be combined with the first stage of an attack on
the problem that the 'flat file' copies of pg_shadow and pg_group are
not properly updated during WAL recovery.  The code I've added to
startup resides in a new file src/backend/utils/init/flatfiles.c, and
it is responsible for rewriting the flat files as well as initializing
the XID wraparound limit value.  This will eventually allow us to get
rid of GetRawDatabaseInfo too, but we'll need an initdb so we can add
a trigger to pg_database.
2005-02-20 02:22:07 +00:00
config New version of mkinstalldirs fixes problems on Tru64 UNIX. 2005-01-08 09:54:29 +00:00
contrib Make sure contrib C functions are marked strict where needed. 2005-01-29 22:35:02 +00:00
doc Add code to prevent transaction ID wraparound by enforcing a safe limit 2005-02-20 02:22:07 +00:00
src Add code to prevent transaction ID wraparound by enforcing a safe limit 2005-02-20 02:22:07 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Stamp 8.1 in configure. 2005-01-18 05:23:36 +00:00
configure.in Stamp 8.1 in configure. 2005-01-18 05:23:36 +00:00
COPYRIGHT Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
GNUmakefile.in please find attached an alternate submission which addresses open item 2004-10-06 08:50:02 +00:00
Makefile please find attached an alternate submission which addresses open item 2004-10-06 08:50:02 +00:00
README Remove more traces of libpgtcl from the source tree. Also, make some 2004-10-01 02:00:44 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +00:00

README 

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.

The JDBC, ODBC, C++, Python, and Tcl interfaces have been moved to the
PostgreSQL Projects Web Site at http://gborg.postgresql.org for separate
maintenance.  A Perl DBI/DBD driver is available from CPAN.

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/.