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Tom Lane e343eaafc2 Mark internal_in as not strict, so that the construct "null::internal" 
will throw an error, rather than possibly allowing someone to synthesize
a manual call to an internal-accepting function.  As of CVS HEAD and existing
releases, all such functions are either STRICT or careful about null inputs,
so there is no current security issue here.  But it seems like a good idea
to lock this down to protect against future mistakes.

In passing, similarly lock down trigger_in, language_handler_in, opaque_in,
and shell_in.  These are not believed to present any security risk, but
there's still no good reason to allow nulls of these types to be created.
I left the polymorphic pseudotypes (anyelement etc) alone, since a null
of one of those types doesn't seem to be a problem --- the worst you can
say about it is that it doesn't have an underlying non-polymorphic type.

If we were to make this change during normal development, we'd just
automatically bump catversion for a pg_proc.h change.  But since this doesn't
create a compatibility risk and isn't believed to be fixing a live bug, it
seems better not to force a catversion bump in late beta.
2009-06-09 19:51:00 +00:00
config Update config.guess and config.sub 2009-04-09 21:33:02 +00:00
contrib Restore dblink_current_query() to being a C-language function, so as to not 2009-06-09 17:41:02 +00:00
doc Fix contrib/pageinspect to not create an ABI breakage between 8.3 and 8.4. 2009-06-08 16:22:44 +00:00
src Mark internal_in as not strict, so that the construct "null::internal" 2009-06-09 19:51:00 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Add documentation string for LDFLAGS_SL in configure --help output. 2009-05-19 22:32:41 +00:00
configure.in Add documentation string for LDFLAGS_SL in configure --help output. 2009-05-19 22:32:41 +00:00
COPYRIGHT Update copyright for 2009. 2009-01-01 17:24:05 +00:00
GNUmakefile.in Modify distdir rule to skip .git directory. 2009-01-15 01:53:49 +00:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
README Point to our download URL, rather than listing interface in the README 2008-05-06 22:02:12 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +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 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/.