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Tom Lane f2ba1e994c Avoid unexpected conversion overflow in planner for distant date values. The "date" type supports a wider range of dates than int64 timestamps do. However, there is pre-int64-timestamp code in the planner that assumes that all date values can be converted to timestamp with impunity. Fortunately, what we really need out of the conversion is always a double (float8) value; so even when the date is out of timestamp's range it's possible to produce a sane answer. All we need is a code path that doesn't try to force the result into int64. Per trouble report from David Rericha. Back-patch to all supported versions. Although this is surely a corner case, there's not much point in advertising a date range wider than timestamp's if we will choke on such values in unexpected places.		2010-12-28 22:49:57 -05:00
config	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
contrib	Mark unaccent functions as STABLE, rather than defaulting to VOLATILE.	2010-12-27 15:34:42 -05:00
doc	Reclassify DEFAULT as a column_constraint item in the CREATE TABLE syntax.	2010-12-28 21:38:05 -05:00
src	Avoid unexpected conversion overflow in planner for distant date values.	2010-12-28 22:49:57 -05:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
COPYRIGHT	Update copyright for the year 2010.	2010-01-02 16:58:17 +00:00
GNUmakefile.in	Improved parallel make support	2010-11-12 22:15:16 +02:00
Makefile	Add new make targets "world", "install-world" and "installcheck-world" to build, install and check just about everything.	2010-01-28 23:59:52 +00:00
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	Only build in crashdump support on Windows if there's a working dbghelp.h.	2010-12-26 10:34:47 -05:00
configure.in	Only build in crashdump support on Windows if there's a working dbghelp.h.	2010-12-26 10:34:47 -05:00

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/.