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Heikki Linnakangas e1c26ab853 Fix the truncation logic of the OldSerXid SLRU mechanism. We can't pass 
SimpleLruTruncate() a page number that's "in the future", because it will
issue a warning and refuse to truncate anything. Instead, we leave behind
the latest segment. If the slru is not needed before XID wrap-around, the
segment will appear as new again, and not be cleaned up until it gets old
enough again. That's a bit unpleasant, but better than not cleaning up
anything.

Also, fix broken calculation to check and warn if the span of the OldSerXid
SLRU is getting too large to fit in the 64k SLRU pages that we have
available. It was not XID wraparound aware.

Kevin Grittner and me.
 		2011-06-09 21:39:39 +03:00
config Adjust configure to use "+Olibmerrno" with HP-UX C compiler, if possible. 2011-05-26 17:29:33 -04:00
contrib Pgindent run before 9.1 beta2. 2011-06-09 14:32:50 -04:00
doc Support silent mode for service registrations on win32 2011-06-09 18:24:59 +02:00
src Fix the truncation logic of the OldSerXid SLRU mechanism. We can't pass 2011-06-09 21:39:39 +03:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
COPYRIGHT Stamp copyrights for year 2011. 2011-01-01 13:18:15 -05:00
GNUmakefile.in Support "make check" in contrib 2011-04-25 22:27:11 +03:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -04:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Implement getpeereid() as a src/port compatibility function. 2011-06-02 13:05:01 -04:00
configure.in Implement getpeereid() as a src/port compatibility function. 2011-06-02 13:05:01 -04:00

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.

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/.