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Tom Lane 30fd8ec799 Install checks in executor startup to ensure that the tuples produced by an 
INSERT or UPDATE will match the target table's current rowtype.  In pre-8.3
releases inconsistency can arise with stale cached plans, as reported by
Merlin Moncure.  (We patched the equivalent hazard on the SELECT side in Feb
2007; I'm not sure why we thought there was no risk on the insertion side.)
In 8.3 and HEAD this problem should be impossible due to plan cache
invalidation management, but it seems prudent to make the check anyway.

Back-patch as far as 8.0.  7.x versions lack ALTER COLUMN TYPE, so there
seems no way to abuse a stale plan comparably.
2008-08-08 17:01:11 +00:00
config Cope with Tcl versions that do not create a tclsh symlink to the version- 2008-08-01 13:50:52 +00:00
contrib Allow I/O conversion casts to be applied to or from any type that is a member 2008-07-30 21:23:17 +00:00
doc Move pgstat.tmp into a temporary directory under $PGDATA named pg_stat_tmp. 2008-08-05 12:09:30 +00:00
src Install checks in executor startup to ensure that the tuples produced by an 2008-08-08 17:01:11 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Cope with Tcl versions that do not create a tclsh symlink to the version- 2008-08-01 13:50:52 +00:00
configure.in Modify the recently-added probe for -Wl,--as-needed some more, because RHEL-4 2008-06-27 00:36:16 +00:00
COPYRIGHT Update copyrights in source tree to 2008. 2008-01-01 19:46:01 +00:00
GNUmakefile.in Catch all errors in for and while loops in makefiles. Don't ignore any 2008-03-18 16:24:50 +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/.