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Tom Lane 7da4e7ac6a Repair longstanding bug in slru/clog logic: it is possible for two backends 
to try to create a log segment file concurrently, but the code erroneously
specified O_EXCL to open(), resulting in a needless failure.  Before 7.4,
it was even a PANIC condition :-(.  Correct code is actually simpler than
what we had, because we can just say O_CREAT to start with and not need a
second open() call.  I believe this accounts for several recent reports of
hard-to-reproduce "could not create file ...: File exists" errors in both
pg_clog and pg_subtrans.
2006-01-21 04:38:46 +00:00
config Handle draft version of getpwuid_r() that accepts only four arguments. 2004-03-20 15:39:40 +00:00
contrib When the remote query result has a different number of columns 2006-01-03 23:48:04 +00:00
doc Release-note updates and copy editing. 2006-01-06 03:00:34 +00:00
src Repair longstanding bug in slru/clog logic: it is possible for two backends 2006-01-21 04:38:46 +00:00
aclocal.m4 Remove leftovers from subproject removals. Fixes for Python and Kerberos 2002-09-04 22:54:18 +00:00
configure Use a more bulletproof test for whether finite() and isinf() are present. 2006-01-12 19:24:27 +00:00
configure.in Use a more bulletproof test for whether finite() and isinf() are present. 2006-01-12 19:24:27 +00:00
COPYRIGHT Fix some copyright notices that weren't updated. Improve copyright tool 2003-08-04 23:59:41 +00:00
GNUmakefile.in Remove README.CVS when making a distribution. 2004-06-13 21:50:04 +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
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:14 +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/.