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Tom Lane 0bcf76311f Defend against JOINs having more than 32K columns altogether. We cannot 
currently support this because we must be able to build Vars referencing
join columns, and varattno is only 16 bits wide.  Perhaps this should be
improved in future, but considering that it never came up before, I'm not
sure the problem is worth much effort.  Per bug #4070 from Marcello
Ceschia.

The problem seems largely academic in 8.0 and 7.4, because they have
(different) O(N^2) performance issues with such wide joins, but
back-patch all the way anyway.
2008-04-05 01:59:01 +00:00
config Handle draft version of getpwuid_r() that accepts only four arguments. 2004-03-20 15:39:40 +00:00
contrib The original patch to disallow non-passworded connections to non-superusers 2008-01-03 21:28:55 +00:00
doc Fix an ancient oversight in libpq's handling of V3-protocol COPY OUT mode: 2008-01-14 18:46:49 +00:00
src Defend against JOINs having more than 32K columns altogether. We cannot 2008-04-05 01:59:01 +00:00
aclocal.m4
configure Use our own getopt() and getopt_long() on Solaris, because that platform's 2008-02-24 05:22:44 +00:00
configure.in Use our own getopt() and getopt_long() on Solaris, because that platform's 2008-02-24 05:22:44 +00:00
COPYRIGHT
GNUmakefile.in Remove README.CVS when making a distribution. 2004-06-13 21:50:04 +00:00
Makefile
README
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/.