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Tom Lane 34f662dd65 Fix an ancient error in dist_ps (distance from point to line segment), which 
a number of other geometric operators also depend on.  It miscalculated the
slope of the perpendicular to the given line segment anytime that slope was
other than 0, infinite, or +/-1.  In some cases the error would be masked
because the true closest point on the line segment was one of its endpoints
rather than the intersection point, but in other cases it could give an
arbitrarily bad answer.  Per bug #4872 from Nick Roosevelt.

Bug goes clear back to Berkeley days, so patch all supported branches.
Make a couple of cosmetic adjustments while at it.
2009-06-23 16:25:35 +00:00
config Handle draft version of getpwuid_r() that accepts only four arguments. 2004-03-20 15:39:40 +00:00
contrib Remove beer-ware license from crypt-md5.c, per 2009-04-15 18:58:26 +00:00
doc Split the release notes into a separate file for each (active) major branch, 2009-05-02 20:18:21 +00:00
src Fix an ancient error in dist_ps (distance from point to line segment), which 2009-06-23 16:25:35 +00:00
aclocal.m4 Remove leftovers from subproject removals. Fixes for Python and Kerberos 2002-09-04 22:54:18 +00:00
configure tag 7.4.25 2009-03-13 02:39:42 +00:00
configure.in tag 7.4.25 2009-03-13 02:39:42 +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/.