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Tom Lane 6eeb95f0f5 Restructure representation of join alias variables. An explicit JOIN now has an RTE of its own, and references to its outputs now are Vars referencing the JOIN RTE, rather than CASE-expressions. This allows reverse-listing in ruleutils.c to use the correct alias easily, rather than painfully reverse-engineering the alias namespace as it used to do. Also, nested FULL JOINs work correctly, because the result of the inner joins are simple Vars that the planner can cope with. This fixes a bug reported a couple times now, notably by Tatsuo on 18-Nov-01. The alias Vars are expanded into COALESCE expressions where needed at the very end of planning, rather than during parsing. Also, beginnings of support for showing plan qualifier expressions in EXPLAIN. There are probably still cases that need work. initdb forced due to change of stored-rule representation.		2002-03-12 00:52:10 +00:00
config	Heimdal support (Kerberos V implementation from KTH)	2002-02-23 04:17:47 +00:00
contrib	Pleas apply it for 7.2.1 and current CVS.	2002-03-11 16:54:27 +00:00
doc	Mention time() and interval() are also changed in 7.2.	2002-03-11 16:41:44 +00:00
src	Restructure representation of join alias variables. An explicit JOIN	2002-03-12 00:52:10 +00:00
COPYRIGHT	Better formatting	2001-12-19 18:53:47 +00:00
GNUmakefile.in	/doc/src -> /doc for Peter.	2001-11-21 23:19:25 +00:00
HISTORY	Mention time() and interval() are also changed in 7.2.	2002-03-11 16:41:44 +00:00
INSTALL	Rebuild from source.	2002-01-31 00:46:26 +00:00
Makefile	Restructure the key include files per recent pghackers discussion: there	2001-02-10 02:31:31 +00:00
README	New edition	2001-12-19 18:53:58 +00:00
aclocal.m4	Put the right runpath to libpq into the Perl module shared object on more	2001-08-26 22:28:04 +00:00
configure	Autoconf for jdbc debug changes.	2002-03-05 17:55:45 +00:00
configure.in	At this moment, --enable-debug adds debugging information to most of the	2002-03-05 17:55:23 +00:00
register.txt	Stamp 7.2 for release.	2002-02-03 21:00:09 +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, C++, Perl, Python, and Tcl, as well as drivers
for JDBC and ODBC.

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/.