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Tom Lane f009c316ba Tweak code so that pg_subtrans is never consulted for XIDs older than 
RecentXmin (== MyProc->xmin).  This ensures that it will be safe to
truncate pg_subtrans at RecentGlobalXmin, which should largely eliminate
any fear of bloat.  Along the way, eliminate SubTransXidsHaveCommonAncestor,
which isn't really needed and could not give a trustworthy result anyway
under the lookback restriction.
In an unrelated but nearby change, #ifdef out GetUndoRecPtr, which has
been dead code since 2001 and seems unlikely to ever be resurrected.
 		2004-08-22 02:41:58 +00:00
config Fix agressive collection of thread flags. 2004-08-17 15:19:09 +00:00
contrib Recent tightening of allowed array-literal syntax broke one test case 2004-08-21 00:26:54 +00:00
doc Seems it would be nice if the ALTER INDEX ref page were actually 2004-08-21 16:16:04 +00:00
src Tweak code so that pg_subtrans is never consulted for XIDs older than 2004-08-22 02:41:58 +00:00
COPYRIGHT
…
GNUmakefile.in PostgreSQL extension makefile framework ("pgxs"), by Fabien Coelho, with 2004-07-30 12:26:40 +00:00
Makefile
…
README Remove JDBC from the build system and documentation, too. 2004-01-19 21:20:06 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Fix agressive collection of thread flags. 2004-08-17 15:19:09 +00:00
configure.in tag her configure 8.0.0beta1 ... 2004-08-08 23:27:11 +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 several language
bindings, including C and Tcl.

The JDBC, ODBC, C++, and Python 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/.