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Tom Lane fa5e44017a Adjust the API for aggregate function calls so that a C-coded function 
can tell whether it is being used as an aggregate or not.  This allows
such a function to avoid re-pallocing a pass-by-reference transition
value; normally it would be unsafe for a function to scribble on an input,
but in the aggregate case it's safe to reuse the old transition value.
Make int8inc() do this.  This gets a useful improvement in the speed of
COUNT(*), at least on narrow tables (it seems to be swamped by I/O when
the table rows are wide).  Per a discussion in early December with
Neil Conway.  I also fixed int_aggregate.c to check this, thereby
turning it into something approaching a supportable technique instead
of being a crude hack.
 		2005-03-12 20:25:06 +00:00
config Clean up printf arg-control test, per Kurt Roeckx. 2005-02-24 01:34:45 +00:00
contrib Adjust the API for aggregate function calls so that a C-coded function 2005-03-12 20:25:06 +00:00
doc Adjust the API for aggregate function calls so that a C-coded function 2005-03-12 20:25:06 +00:00
src Adjust the API for aggregate function calls so that a C-coded function 2005-03-12 20:25:06 +00:00
COPYRIGHT Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
GNUmakefile.in please find attached an alternate submission which addresses open item 2004-10-06 08:50:02 +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
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Define snprintf() to call pg_snprintf() so our own snprintf-like 2005-03-11 17:20:35 +00:00
configure.in Define snprintf() to call pg_snprintf() so our own snprintf-like 2005-03-11 17:20:35 +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/.