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Tom Lane a87ee007ed Quick hack to allow the outer query's tuple_fraction to be passed down 
to a subquery if the outer query is simple enough that the LIMIT can
be reflected directly to the subquery.  This didn't use to be very
interesting, because a subquery that couldn't have been flattened into
the upper query was usually not going to be very responsive to
tuple_fraction anyway.  But with new code that allows UNION ALL subqueries
to pay attention to tuple_fraction, this is useful to do.  In particular
this lets the optimization occur when the UNION ALL is directly inside
a view.
2005-06-10 03:32:25 +00:00
config Clean up printf arg-control test, per Kurt Roeckx. 2005-02-24 01:34:45 +00:00
contrib Prevent to divide by zero and range out of 0..1 2005-06-01 11:45:03 +00:00
doc Add the "PGPASSFILE" environment variable to specify to the password 2005-06-10 03:02:30 +00:00
src Quick hack to allow the outer query's tuple_fraction to be passed down 2005-06-10 03:32:25 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Allow kerberos name and username case sensitivity to be specified from 2005-06-04 20:42:43 +00:00
configure.in Allow kerberos name and username case sensitivity to be specified from 2005-06-04 20:42:43 +00:00
COPYRIGHT Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
GNUmakefile.in Remove the contents of the src/corba subdirectory: this has been dead code 2005-05-01 06:15:51 +00:00
Makefile please find attached an alternate submission which addresses open item 2004-10-06 08:50:02 +00:00
README Remove more traces of libpgtcl from the source tree. Also, make some 2004-10-01 02:00:44 +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.

The JDBC, ODBC, C++, Python, and Tcl 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/.