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Tom Lane b2c4071299 Redesign query-snapshot timing so that volatile functions in READ COMMITTED
mode see a fresh snapshot for each command in the function, rather than
using the latest interactive command's snapshot.  Also, suppress fresh
snapshots as well as CommandCounterIncrement inside STABLE and IMMUTABLE
functions, instead using the snapshot taken for the most closely nested
regular query.  (This behavior is only sane for read-only functions, so
the patch also enforces that such functions contain only SELECT commands.)
As per my proposal of 6-Sep-2004; I note that I floated essentially the
same proposal on 19-Jun-2002, but that discussion tailed off without any
action.  Since 8.0 seems like the right place to be taking possibly
nontrivial backwards compatibility hits, let's get it done now.
2004-09-13 20:10:13 +00:00
config Send thread test output to file descriptor 5 like configure does rather 2004-09-11 02:12:17 +00:00
contrib Redesign query-snapshot timing so that volatile functions in READ COMMITTED 2004-09-13 20:10:13 +00:00
doc Redesign query-snapshot timing so that volatile functions in READ COMMITTED 2004-09-13 20:10:13 +00:00
src Redesign query-snapshot timing so that volatile functions in READ COMMITTED 2004-09-13 20:10:13 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Send thread test output to file descriptor 5 like configure does rather 2004-09-11 02:12:17 +00:00
configure.in Use $PORTNAME consistently instead of $host_os, where appropriate. 2004-09-10 13:53:40 +00:00
COPYRIGHT Update copyright to 2004. 2004-08-29 04:13:13 +00:00
GNUmakefile.in PostgreSQL extension makefile framework ("pgxs"), by Fabien Coelho, with 2004-07-30 12:26:40 +00:00
Makefile Restructure the key include files per recent pghackers discussion: there 2001-02-10 02:31:31 +00:00
README Remove JDBC from the build system and documentation, too. 2004-01-19 21:20:06 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +00:00

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 and Tcl.

The JDBC, ODBC, C++, and Python interfaces have been moved to the PostgreSQL
Projects Web Site at http://gborg.postgresql.org for separate maintenance.
A Perl DBI/DBD driver is available from CPAN.

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/.