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Tom Lane db18703b5a Fix LISTEN/NOTIFY race condition reported by Gavin Sherry. While a 
really general fix might be difficult, I believe the only case where
AtCommit_Notify could see an uncommitted tuple is where the other guy
has just unlistened and not yet committed.  The best solution seems to
be to just skip updating that tuple, on the assumption that the other
guy does not want to hear about the notification anyway.  This is not
perfect --- if the other guy rolls back his unlisten instead of committing,
then he really should have gotten this notify.  But to do that, we'd have
to wait to see if he commits or not, or make UNLISTEN hold exclusive lock
on pg_listener until commit.  Either of these answers is deadlock-prone,
not to mention horrible for interactive performance.  Do it this way
for now.  (What happened to that project to do LISTEN/NOTIFY in memory
with no table, anyway?)
2003-09-15 23:33:43 +00:00
config Changes for MinGW/WIN32: 2003-09-07 03:43:57 +00:00
contrib Persuade tsearch/tsearch2 to work (or at least pass their regression 2003-09-14 18:44:23 +00:00
doc Okay, who left off the id= here? 2003-09-15 03:32:24 +00:00
src Fix LISTEN/NOTIFY race condition reported by Gavin Sherry. While a 2003-09-15 23:33:43 +00:00
aclocal.m4 Remove leftovers from subproject removals. Fixes for Python and Kerberos 2002-09-04 22:54:18 +00:00
configure tag her for beta3, as announced on Friday ... 2003-09-15 14:32:35 +00:00
configure.in tag her for beta3, as announced on Friday ... 2003-09-15 14:32:35 +00:00
COPYRIGHT Fix some copyright notices that weren't updated. Improve copyright tool 2003-08-04 23:59:41 +00:00
GNUmakefile.in can't mix and match .gz and .bz2 in here ... won't build 2003-08-05 04:55:58 +00:00
HISTORY Add to release notes. 2003-08-17 05:24:52 +00:00
INSTALL Remove --enable-recode feature, since it's been broken by IPv6 changes, 2003-08-04 04:03:10 +00:00
Makefile Restructure the key include files per recent pghackers discussion: there 2001-02-10 02:31:31 +00:00
README Improve wording. 2002-11-11 20:03:40 +00:00
register.txt Update URL to point to proper location. 2003-06-02 15:01:03 +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, Perl, Python, and Tcl, as well as a JDBC
driver.

The ODBC and C++ interfaces have been moved to the PostgreSQL Projects
Web Site at http://gborg.postgresql.org for separate maintenance.

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/.